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- Committer: Package Import Robot
- Author(s): Piotr Ożarowski, Jakub Wilk, Piotr Ożarowski
- Date: 2013-07-06 20:53:52 UTC
- mfrom: (1.4.23) (16.1.17 experimental)
- Revision ID: package-import@ubuntu.com-20130706205352-ryppl1eto3illd79
Tags: 0.8.2-1
[ Jakub Wilk ]
* Use canonical URIs for Vcs-* fields.
[ Piotr Ożarowski ]
* New upstream release
* Upload to unstable
* Build depend on python3-all instead of -dev, extensions are not built for
Python 3.X
* Use canonical URIs for Vcs-* fields.
[ Piotr Ożarowski ]
* New upstream release
* Upload to unstable
* Build depend on python3-all instead of -dev, extensions are not built for
Python 3.X
- files added:
- README.dialects.rst
- doc/_sources/changelog
- doc/build/changelog
- doc/changelog
- examples/dogpile_caching
- lib/sqlalchemy/ext/declarative
- lib/sqlalchemy/testing
- lib/sqlalchemy/testing/plugin
- lib/sqlalchemy/testing/suite
- test/dialect/mssql
- test/dialect/mysql
- test/dialect/postgresql
- test/ext/declarative
- files removed:
- CHANGES_PRE_06
- examples/beaker_caching
- examples/declarative_reflection
- lib/sqlalchemy/dialects/access
- lib/sqlalchemy/dialects/maxdb
- test/bootstrap
- test/ex
- test/lib
- files modified:
- CHANGES
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<li><a class="reference internal" href="#">0.3 Changelog</a><ul>
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<li><a class="reference internal" href="#change-0.3.11">0.3.11</a><ul>
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<li><a class="reference internal" href="#change-0.3.11-orm">orm</a></li>
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<li><a class="reference internal" href="#change-0.3.11-engine">engine</a></li>
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<li><a class="reference internal" href="#change-0.3.11-sql">sql</a></li>
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<li><a class="reference internal" href="#change-0.3.11-mysql">mysql</a></li>
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<li><a class="reference internal" href="#change-0.3.11-sqlite">sqlite</a></li>
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<li><a class="reference internal" href="#change-0.3.11-mssql">mssql</a></li>
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<li><a class="reference internal" href="#change-0.3.11-oracle">oracle</a></li>
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<li><a class="reference internal" href="#change-0.3.11-firebird">firebird</a></li>
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<li><a class="reference internal" href="#change-0.3.11-misc">misc</a></li>
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<li><a class="reference internal" href="#change-0.3.10">0.3.10</a><ul>
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<li><a class="reference internal" href="#change-0.3.10-general">general</a></li>
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<li><a class="reference internal" href="#change-0.3.10-orm">orm</a></li>
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<li><a class="reference internal" href="#change-0.3.10-sql">sql</a></li>
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<li><a class="reference internal" href="#change-0.3.9-orm">orm</a></li>
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<li><a class="reference internal" href="#change-0.3.9-mssql">mssql</a></li>
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<li><a class="reference internal" href="#change-0.3.9-misc">misc</a></li>
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<li><a class="reference internal" href="#change-0.3.8">0.3.8</a><ul>
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<li><a class="reference internal" href="#change-0.3.8-orm">orm</a></li>
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<li><a class="reference internal" href="#change-0.3.8-sql">sql</a></li>
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<li><a class="reference internal" href="#change-0.3.8-mysql">mysql</a></li>
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<li><a class="reference internal" href="#change-0.3.8-firebird">firebird</a></li>
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<li><a class="reference internal" href="#change-0.3.7-sql">sql</a></li>
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<li><a class="reference internal" href="#change-0.3.7-sqlite">sqlite</a></li>
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<li><a class="reference internal" href="#change-0.3.7-mssql">mssql</a></li>
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<h1>0.3 Changelog<a class="headerlink" href="#changelog" title="Permalink to this headline">¶</a></h1>
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<div class="section" id="change-0.3.11">
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<h2>0.3.11<a class="headerlink" href="#change-0.3.11" title="Permalink to this headline">¶</a></h2>
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Released: Sun Oct 14 2007<div class="section" id="change-0.3.11-orm">
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<h3>orm<a class="headerlink" href="#change-0.3.11-orm" title="Permalink to this headline">¶</a></h3>
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<ul class="simple">
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<li><p id="change-0.3.11-0"><span class="target" id="change-795ef475f7d4b812b08e3c6d684d0937"><strong>[orm] </strong></span>added a check for joining from A->B using join(), along two
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different m2m tables. this raises an error in 0.3 but is
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possible in 0.4 when aliases are used.<a class="changeset-link reference internal" href="#change-795ef475f7d4b812b08e3c6d684d0937">(link)</a><p> <a class="reference external" href="http://www.sqlalchemy.org/trac/ticket/687">#687</a></p>
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<li><p id="change-0.3.11-1"><span class="target" id="change-88ee862c631f69b98c54fa871a991656"><strong>[orm] </strong></span>fixed small exception throw bug in Session.merge()<a class="changeset-link reference internal" href="#change-88ee862c631f69b98c54fa871a991656">(link)</a><p></p>
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<li><p id="change-0.3.11-2"><span class="target" id="change-bd9e04477cd60c6d6a7a4cebb7f0913a"><strong>[orm] </strong></span>fixed bug where mapper, being linked to a join where one table had
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no PK columns, would not detect that the joined table had no PK.<a class="changeset-link reference internal" href="#change-bd9e04477cd60c6d6a7a4cebb7f0913a">(link)</a><p></p>
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<li><p id="change-0.3.11-3"><span class="target" id="change-1e038d2dbcdd2153030e7394dfd58f3d"><strong>[orm] </strong></span>fixed bugs in determining proper sync clauses from custom inherit
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conditions<a class="changeset-link reference internal" href="#change-1e038d2dbcdd2153030e7394dfd58f3d">(link)</a><p> <a class="reference external" href="http://www.sqlalchemy.org/trac/ticket/769">#769</a></p>
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<li><p id="change-0.3.11-4"><span class="target" id="change-0e43e8232535b10db727543c77f728bd"><strong>[orm] </strong></span>backref remove object operation doesn’t fail if the other-side
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collection doesn’t contain the item, supports noload collections<a class="changeset-link reference internal" href="#change-0e43e8232535b10db727543c77f728bd">(link)</a><p> <a class="reference external" href="http://www.sqlalchemy.org/trac/ticket/813">#813</a></p>
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<div class="section" id="change-0.3.11-engine">
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<h3>engine<a class="headerlink" href="#change-0.3.11-engine" title="Permalink to this headline">¶</a></h3>
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<ul class="simple">
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<li><p id="change-0.3.11-5"><span class="target" id="change-a8031639e187f84e4aa5334fd71c2098"><strong>[engine] </strong></span>fixed another occasional race condition which could occur
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when using pool with threadlocal setting<a class="changeset-link reference internal" href="#change-a8031639e187f84e4aa5334fd71c2098">(link)</a><p></p>
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<div class="section" id="change-0.3.11-sql">
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<h3>sql<a class="headerlink" href="#change-0.3.11-sql" title="Permalink to this headline">¶</a></h3>
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<ul class="simple">
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<li><p id="change-0.3.11-6"><span class="target" id="change-606aa4f88278c9f53504856ea6950d76"><strong>[sql] </strong></span>tweak DISTINCT precedence for clauses like
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<cite>func.count(t.c.col.distinct())</cite><a class="changeset-link reference internal" href="#change-606aa4f88278c9f53504856ea6950d76">(link)</a><p></p>
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</p>
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</li>
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<li><p id="change-0.3.11-7"><span class="target" id="change-d8d45d29d80bd66d00ef851e04a3f82b"><strong>[sql] </strong></span>Fixed detection of internal ‘$’ characters in :bind$params<a class="changeset-link reference internal" href="#change-d8d45d29d80bd66d00ef851e04a3f82b">(link)</a><p> <a class="reference external" href="http://www.sqlalchemy.org/trac/ticket/719">#719</a></p>
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<li><p id="change-0.3.11-8"><span class="target" id="change-c775c555253217a9fec895e46da53374"><strong>[sql] </strong></span>dont assume join criterion consists only of column objects<a class="changeset-link reference internal" href="#change-c775c555253217a9fec895e46da53374">(link)</a><p> <a class="reference external" href="http://www.sqlalchemy.org/trac/ticket/768">#768</a></p>
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<li><p id="change-0.3.11-9"><span class="target" id="change-adee1f3a5bf6063740c4e5d0d8759576"><strong>[sql] </strong></span>adjusted operator precedence of NOT to match ‘==’ and others, so that
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~(x==y) produces NOT (x=y), which is compatible with MySQL < 5.0
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(doesn’t like “NOT x=y”)<a class="changeset-link reference internal" href="#change-adee1f3a5bf6063740c4e5d0d8759576">(link)</a><p> <a class="reference external" href="http://www.sqlalchemy.org/trac/ticket/764">#764</a></p>
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<div class="section" id="change-0.3.11-mysql">
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<h3>mysql<a class="headerlink" href="#change-0.3.11-mysql" title="Permalink to this headline">¶</a></h3>
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<ul class="simple">
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<li><p id="change-0.3.11-10"><span class="target" id="change-0925c07610677ed2716dea213bbd0a75"><strong>[mysql] </strong></span>fixed specification of YEAR columns when generating schema<a class="changeset-link reference internal" href="#change-0925c07610677ed2716dea213bbd0a75">(link)</a><p></p>
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</p>
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<div class="section" id="change-0.3.11-sqlite">
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<h3>sqlite<a class="headerlink" href="#change-0.3.11-sqlite" title="Permalink to this headline">¶</a></h3>
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<ul class="simple">
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<li><p id="change-0.3.11-11"><span class="target" id="change-cb3f35b104dcbe7a26298edfc829c240"><strong>[sqlite] </strong></span>passthrough for stringified dates<a class="changeset-link reference internal" href="#change-cb3f35b104dcbe7a26298edfc829c240">(link)</a><p></p>
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</p>
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<div class="section" id="change-0.3.11-mssql">
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<h3>mssql<a class="headerlink" href="#change-0.3.11-mssql" title="Permalink to this headline">¶</a></h3>
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<ul class="simple">
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<li><p id="change-0.3.11-12"><span class="target" id="change-9ae1839db8b6431a7d9a951df9db226f"><strong>[mssql] </strong></span>added support for TIME columns (simulated using DATETIME)<a class="changeset-link reference internal" href="#change-9ae1839db8b6431a7d9a951df9db226f">(link)</a><p> <a class="reference external" href="http://www.sqlalchemy.org/trac/ticket/679">#679</a></p>
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</p>
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</li>
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<li><p id="change-0.3.11-13"><span class="target" id="change-22d1b8a85d2e3fad306665d645da0f78"><strong>[mssql] </strong></span>added support for BIGINT, MONEY, SMALLMONEY, UNIQUEIDENTIFIER and
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SQL_VARIANT<a class="changeset-link reference internal" href="#change-22d1b8a85d2e3fad306665d645da0f78">(link)</a><p> <a class="reference external" href="http://www.sqlalchemy.org/trac/ticket/721">#721</a></p>
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<li><p id="change-0.3.11-14"><span class="target" id="change-b1949f314913ce8e14c5552e9e90e924"><strong>[mssql] </strong></span>index names are now quoted when dropping from reflected tables<a class="changeset-link reference internal" href="#change-b1949f314913ce8e14c5552e9e90e924">(link)</a><p> <a class="reference external" href="http://www.sqlalchemy.org/trac/ticket/684">#684</a></p>
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<li><p id="change-0.3.11-15"><span class="target" id="change-dc27077ba3230cb424fcf4b4b8185ac1"><strong>[mssql] </strong></span>can now specify a DSN for PyODBC, using a URI like mssql:///?dsn=bob<a class="changeset-link reference internal" href="#change-dc27077ba3230cb424fcf4b4b8185ac1">(link)</a><p></p>
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</li>
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</ul>
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</div>
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<div class="section" id="change-0.3.11-oracle">
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<h3>oracle<a class="headerlink" href="#change-0.3.11-oracle" title="Permalink to this headline">¶</a></h3>
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<ul class="simple">
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<li><p id="change-0.3.11-16"><span class="target" id="change-5f0bd7c8398c9a49d384e169dded9299"><strong>[oracle] </strong></span>removed LONG_STRING, LONG_BINARY from “binary” types, so type objects
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don’t try to read their values as LOB.<a class="changeset-link reference internal" href="#change-5f0bd7c8398c9a49d384e169dded9299">(link)</a><p> <a class="reference external" href="http://www.sqlalchemy.org/trac/ticket/622">#622</a>, <a class="reference external" href="http://www.sqlalchemy.org/trac/ticket/751">#751</a></p>
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</p>
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</li>
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</ul>
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</div>
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<div class="section" id="change-0.3.11-firebird">
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<h3>firebird<a class="headerlink" href="#change-0.3.11-firebird" title="Permalink to this headline">¶</a></h3>
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<ul class="simple">
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<li><p id="change-0.3.11-17"><span class="target" id="change-68a13c0986d622612ea9b90a1e732d21"><strong>[firebird] </strong></span>supports_sane_rowcount() set to False due to ticket #370 (right way).<a class="changeset-link reference internal" href="#change-68a13c0986d622612ea9b90a1e732d21">(link)</a><p></p>
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</p>
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</li>
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<li><p id="change-0.3.11-18"><span class="target" id="change-6d153f889ecfbaa34265a173aef5720d"><strong>[firebird] </strong></span>fixed reflection of Column’s nullable property.<a class="changeset-link reference internal" href="#change-6d153f889ecfbaa34265a173aef5720d">(link)</a><p></p>
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</p>
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</li>
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</ul>
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</div>
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<div class="section" id="change-0.3.11-misc">
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<h3>misc<a class="headerlink" href="#change-0.3.11-misc" title="Permalink to this headline">¶</a></h3>
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<ul class="simple">
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<li><p id="change-0.3.11-19"><span class="target" id="change-c26caf7b92713b64413c6519ddfa159a"><strong>[postgres] </strong></span>when reflecting tables from alternate schemas, the “default” placed upon
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the primary key, i.e. usually a sequence name, has the “schema” name
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unconditionally quoted, so that schema names which need quoting are fine.
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its slightly unnecessary for schema names which don’t need quoting
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but not harmful.<a class="changeset-link reference internal" href="#change-c26caf7b92713b64413c6519ddfa159a">(link)</a><p></p>
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</p>
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</li>
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</ul>
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</div>
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</div>
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<div class="section" id="change-0.3.10">
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<h2>0.3.10<a class="headerlink" href="#change-0.3.10" title="Permalink to this headline">¶</a></h2>
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Released: Fri Jul 20 2007<div class="section" id="change-0.3.10-general">
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<h3>general<a class="headerlink" href="#change-0.3.10-general" title="Permalink to this headline">¶</a></h3>
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<ul class="simple">
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<li><p id="change-0.3.10-0"><span class="target" id="change-d21e68c9886bf315a5224f8aedf8c2f0"><strong>[general] </strong></span>a new mutex that was added in 0.3.9 causes the pool_timeout
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feature to fail during a race condition; threads would
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raise TimeoutError immediately with no delay if many threads
372
push the pool into overflow at the same time. this issue has been
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fixed.<a class="changeset-link reference internal" href="#change-d21e68c9886bf315a5224f8aedf8c2f0">(link)</a><p></p>
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</p>
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</li>
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</ul>
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</div>
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<div class="section" id="change-0.3.10-orm">
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<h3>orm<a class="headerlink" href="#change-0.3.10-orm" title="Permalink to this headline">¶</a></h3>
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<ul class="simple">
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<li><p id="change-0.3.10-1"><span class="target" id="change-abc5c622ebf7f48299346d88e835234a"><strong>[orm] </strong></span>cleanup to connection-bound sessions, SessionTransaction<a class="changeset-link reference internal" href="#change-abc5c622ebf7f48299346d88e835234a">(link)</a><p></p>
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</p>
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</li>
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</ul>
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</div>
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<div class="section" id="change-0.3.10-sql">
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<h3>sql<a class="headerlink" href="#change-0.3.10-sql" title="Permalink to this headline">¶</a></h3>
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<ul class="simple">
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<li><p id="change-0.3.10-2"><span class="target" id="change-f1f6a898d9d4aad0cfea3d441d7da52c"><strong>[sql] </strong></span>got connection-bound metadata to work with implicit execution<a class="changeset-link reference internal" href="#change-f1f6a898d9d4aad0cfea3d441d7da52c">(link)</a><p></p>
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</p>
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</li>
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<li><p id="change-0.3.10-3"><span class="target" id="change-513834dddb580f41af0e07c8084eedb6"><strong>[sql] </strong></span>foreign key specs can have any chararcter in their identifiers<a class="changeset-link reference internal" href="#change-513834dddb580f41af0e07c8084eedb6">(link)</a><p> <a class="reference external" href="http://www.sqlalchemy.org/trac/ticket/667">#667</a></p>
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</p>
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</li>
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<li><p id="change-0.3.10-4"><span class="target" id="change-2b2c84c6ab73af1cb0a95c1ef7da18e8"><strong>[sql] </strong></span>added commutativity-awareness to binary clause comparisons to
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each other, improves ORM lazy load optimization<a class="changeset-link reference internal" href="#change-2b2c84c6ab73af1cb0a95c1ef7da18e8">(link)</a><p> <a class="reference external" href="http://www.sqlalchemy.org/trac/ticket/664">#664</a></p>
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</p>
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</li>
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</ul>
400
</div>
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<div class="section" id="change-0.3.10-misc">
402
<h3>misc<a class="headerlink" href="#change-0.3.10-misc" title="Permalink to this headline">¶</a></h3>
403
<ul class="simple">
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<li><p id="change-0.3.10-5"><span class="target" id="change-ad87700ec6114efcef15a751769a83f7"><strong>[postgres] </strong></span>fixed max identifier length (63)<a class="changeset-link reference internal" href="#change-ad87700ec6114efcef15a751769a83f7">(link)</a><p> <a class="reference external" href="http://www.sqlalchemy.org/trac/ticket/571">#571</a></p>
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</p>
406
</li>
407
</ul>
408
</div>
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</div>
410
<div class="section" id="change-0.3.9">
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<h2>0.3.9<a class="headerlink" href="#change-0.3.9" title="Permalink to this headline">¶</a></h2>
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Released: Sun Jul 15 2007<div class="section" id="change-0.3.9-general">
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<h3>general<a class="headerlink" href="#change-0.3.9-general" title="Permalink to this headline">¶</a></h3>
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<ul class="simple">
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<li><p id="change-0.3.9-0"><span class="target" id="change-15b74e04e779630532bed8eb2cb6e6c1"><strong>[general] </strong></span>better error message for NoSuchColumnError<a class="changeset-link reference internal" href="#change-15b74e04e779630532bed8eb2cb6e6c1">(link)</a><p> <a class="reference external" href="http://www.sqlalchemy.org/trac/ticket/607">#607</a></p>
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</p>
417
</li>
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<li><p id="change-0.3.9-1"><span class="target" id="change-1a63992eb7fa15d2defa97764255fbc0"><strong>[general] </strong></span>finally figured out how to get setuptools version in, available
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as sqlalchemy.__version__<a class="changeset-link reference internal" href="#change-1a63992eb7fa15d2defa97764255fbc0">(link)</a><p> <a class="reference external" href="http://www.sqlalchemy.org/trac/ticket/428">#428</a></p>
420
</p>
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</li>
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<li><p id="change-0.3.9-2"><span class="target" id="change-a914144f1b4a77794f443fe172406549"><strong>[general] </strong></span>the various “engine” arguments, such as “engine”, “connectable”,
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“engine_or_url”, “bind_to”, etc. are all present, but deprecated.
424
they all get replaced by the single term “bind”. you also
425
set the “bind” of MetaData using
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metadata.bind = <engine or connection><a class="changeset-link reference internal" href="#change-a914144f1b4a77794f443fe172406549">(link)</a><p></p>
427
</p>
428
</li>
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</ul>
430
</div>
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<div class="section" id="change-0.3.9-orm">
432
<h3>orm<a class="headerlink" href="#change-0.3.9-orm" title="Permalink to this headline">¶</a></h3>
433
<ul class="simple">
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<li><p id="change-0.3.9-3"><span class="target" id="change-301449c29e0fd8c8dbf2a0cbf6bbb0a7"><strong>[orm] </strong></span>forwards-compatibility with 0.4: added one(), first(), and
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all() to Query. almost all Query functionality from 0.4 is
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present in 0.3.9 for forwards-compat purposes.<a class="changeset-link reference internal" href="#change-301449c29e0fd8c8dbf2a0cbf6bbb0a7">(link)</a><p></p>
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</p>
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</li>
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<li><p id="change-0.3.9-4"><span class="target" id="change-3d04848b5b90892e4896d27e42104550"><strong>[orm] </strong></span>reset_joinpoint() really really works this time, promise ! lets
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you re-join from the root:
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query.join([‘a’, ‘b’]).filter(<crit>).reset_joinpoint().join([‘a’, ‘c’]).filter(<some other crit>).all()
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in 0.4 all join() calls start from the “root”<a class="changeset-link reference internal" href="#change-3d04848b5b90892e4896d27e42104550">(link)</a><p></p>
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</p>
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</li>
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<li><p id="change-0.3.9-5"><span class="target" id="change-a0eabad47f40a8f2c05402d784e913e5"><strong>[orm] </strong></span>added synchronization to the mapper() construction step, to avoid
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thread collisions when pre-existing mappers are compiling in a
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different thread<a class="changeset-link reference internal" href="#change-a0eabad47f40a8f2c05402d784e913e5">(link)</a><p> <a class="reference external" href="http://www.sqlalchemy.org/trac/ticket/613">#613</a></p>
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</p>
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</li>
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<li><p id="change-0.3.9-6"><span class="target" id="change-7511ce30f30748be291cfdd03fd2985c"><strong>[orm] </strong></span>a warning is issued by Mapper when two primary key columns of the
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same name are munged into a single attribute. this happens frequently
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when mapping to joins (or inheritance).<a class="changeset-link reference internal" href="#change-7511ce30f30748be291cfdd03fd2985c">(link)</a><p></p>
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</p>
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</li>
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<li><p id="change-0.3.9-7"><span class="target" id="change-2b84bfaaf17d2ee58aef7c2087b5d1a2"><strong>[orm] </strong></span>synonym() properties are fully supported by all Query joining/
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with_parent operations<a class="changeset-link reference internal" href="#change-2b84bfaaf17d2ee58aef7c2087b5d1a2">(link)</a><p> <a class="reference external" href="http://www.sqlalchemy.org/trac/ticket/598">#598</a></p>
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</p>
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</li>
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<li><p id="change-0.3.9-8"><span class="target" id="change-29072b60d67f065003dc3d3c58fc4f41"><strong>[orm] </strong></span>fixed very stupid bug when deleting items with many-to-many
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uselist=False relations<a class="changeset-link reference internal" href="#change-29072b60d67f065003dc3d3c58fc4f41">(link)</a><p></p>
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</p>
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</li>
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<li><p id="change-0.3.9-9"><span class="target" id="change-7c527faac0be51d0670878009672f72e"><strong>[orm] </strong></span>remember all that stuff about polymorphic_union ? for
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joined table inheritance ? Funny thing...
465
You sort of don’t need it for joined table inheritance, you
466
can just string all the tables together via outerjoin().
467
The UNION still applies if concrete tables are involved,
468
though (since nothing to join them on).<a class="changeset-link reference internal" href="#change-7c527faac0be51d0670878009672f72e">(link)</a><p></p>
469
</p>
470
</li>
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<li><p id="change-0.3.9-10"><span class="target" id="change-fe5f2850304952163433155f047967b3"><strong>[orm] </strong></span>small fix to eager loading to better work with eager loads
472
to polymorphic mappers that are using a straight “outerjoin”
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clause<a class="changeset-link reference internal" href="#change-fe5f2850304952163433155f047967b3">(link)</a><p></p>
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</p>
475
</li>
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</ul>
477
</div>
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<div class="section" id="change-0.3.9-sql">
479
<h3>sql<a class="headerlink" href="#change-0.3.9-sql" title="Permalink to this headline">¶</a></h3>
480
<ul class="simple">
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<li><p id="change-0.3.9-11"><span class="target" id="change-0b5f014d547ff11e6e2feb807334a210"><strong>[sql] </strong></span>ForeignKey to a table in a schema thats not the default schema
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requires the schema to be explicit; i.e. ForeignKey(‘alt_schema.users.id’)<a class="changeset-link reference internal" href="#change-0b5f014d547ff11e6e2feb807334a210">(link)</a><p></p>
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</p>
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</li>
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<li><p id="change-0.3.9-12"><span class="target" id="change-cf52683aa8efacf1647755b6e2f1acf9"><strong>[sql] </strong></span>MetaData can now be constructed with an engine or url as the first
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argument, just like BoundMetaData<a class="changeset-link reference internal" href="#change-cf52683aa8efacf1647755b6e2f1acf9">(link)</a><p></p>
487
</p>
488
</li>
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<li><p id="change-0.3.9-13"><span class="target" id="change-2539cd0d61dd58d959c61c6876dc1209"><strong>[sql] </strong></span>BoundMetaData is now deprecated, and MetaData is a direct substitute.<a class="changeset-link reference internal" href="#change-2539cd0d61dd58d959c61c6876dc1209">(link)</a><p></p>
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</p>
491
</li>
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<li><p id="change-0.3.9-14"><span class="target" id="change-10f3b9882e40dd9a45d7188ae6a8237c"><strong>[sql] </strong></span>DynamicMetaData has been renamed to ThreadLocalMetaData. the
493
DynamicMetaData name is deprecated and is an alias for ThreadLocalMetaData
494
or a regular MetaData if threadlocal=False<a class="changeset-link reference internal" href="#change-10f3b9882e40dd9a45d7188ae6a8237c">(link)</a><p></p>
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</p>
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</li>
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<li><p id="change-0.3.9-15"><span class="target" id="change-03586a372d9beeedd862f01e0addc777"><strong>[sql] </strong></span>composite primary key is represented as a non-keyed set to allow for
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composite keys consisting of cols with the same name; occurs within a
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Join. helps inheritance scenarios formulate correct PK.<a class="changeset-link reference internal" href="#change-03586a372d9beeedd862f01e0addc777">(link)</a><p></p>
500
</p>
501
</li>
502
<li><p id="change-0.3.9-16"><span class="target" id="change-afa1167f3e5743e5abd5356d62de6046"><strong>[sql] </strong></span>improved ability to get the “correct” and most minimal set of primary key
503
columns from a join, equating foreign keys and otherwise equated columns.
504
this is also mostly to help inheritance scenarios formulate the best
505
choice of primary key columns.<a class="changeset-link reference internal" href="#change-afa1167f3e5743e5abd5356d62de6046">(link)</a><p> <a class="reference external" href="http://www.sqlalchemy.org/trac/ticket/185">#185</a></p>
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</p>
507
</li>
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<li><p id="change-0.3.9-17"><span class="target" id="change-9c7cdd3f8030a2d57cf94f1f1f892b4c"><strong>[sql] </strong></span>added ‘bind’ argument to Sequence.create()/drop(), ColumnDefault.execute()<a class="changeset-link reference internal" href="#change-9c7cdd3f8030a2d57cf94f1f1f892b4c">(link)</a><p></p>
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</p>
510
</li>
511
<li><p id="change-0.3.9-18"><span class="target" id="change-81ad0a30acb500499415014b6aefd421"><strong>[sql] </strong></span>columns can be overridden in a reflected table with a “key”
512
attribute different than the column’s name, including for primary key
513
columns<a class="changeset-link reference internal" href="#change-81ad0a30acb500499415014b6aefd421">(link)</a><p> <a class="reference external" href="http://www.sqlalchemy.org/trac/ticket/650">#650</a></p>
514
</p>
515
</li>
516
<li><p id="change-0.3.9-19"><span class="target" id="change-4b5d1e9e40c66d1b53a831c30e88292a"><strong>[sql] </strong></span>fixed “ambiguous column” result detection, when dupe col names exist
517
in a result<a class="changeset-link reference internal" href="#change-4b5d1e9e40c66d1b53a831c30e88292a">(link)</a><p> <a class="reference external" href="http://www.sqlalchemy.org/trac/ticket/657">#657</a></p>
518
</p>
519
</li>
520
<li><p id="change-0.3.9-20"><span class="target" id="change-dc154cb277d63d3f13716fab650411d5"><strong>[sql] </strong></span>some enhancements to “column targeting”, the ability to match a column
521
to a “corresponding” column in another selectable. this affects mostly
522
ORM ability to map to complex joins<a class="changeset-link reference internal" href="#change-dc154cb277d63d3f13716fab650411d5">(link)</a><p></p>
523
</p>
524
</li>
525
<li><p id="change-0.3.9-21"><span class="target" id="change-a0f1f7110e545dcbde1e4a60d9b028cc"><strong>[sql] </strong></span>MetaData and all SchemaItems are safe to use with pickle. slow
526
table reflections can be dumped into a pickled file to be reused later.
527
Just reconnect the engine to the metadata after unpickling.<a class="changeset-link reference internal" href="#change-a0f1f7110e545dcbde1e4a60d9b028cc">(link)</a><p> <a class="reference external" href="http://www.sqlalchemy.org/trac/ticket/619">#619</a></p>
528
</p>
529
</li>
530
<li><p id="change-0.3.9-22"><span class="target" id="change-c1578db6e36277a7adc101ca74177397"><strong>[sql] </strong></span>added a mutex to QueuePool’s “overflow” calculation to prevent a race
531
condition that can bypass max_overflow<a class="changeset-link reference internal" href="#change-c1578db6e36277a7adc101ca74177397">(link)</a><p></p>
532
</p>
533
</li>
534
<li><p id="change-0.3.9-23"><span class="target" id="change-3b19729cd27655192e7f677db9437a75"><strong>[sql] </strong></span>fixed grouping of compound selects to give correct results. will break
535
on sqlite in some cases, but those cases were producing incorrect
536
results anyway, sqlite doesn’t support grouped compound selects<a class="changeset-link reference internal" href="#change-3b19729cd27655192e7f677db9437a75">(link)</a><p> <a class="reference external" href="http://www.sqlalchemy.org/trac/ticket/623">#623</a></p>
537
</p>
538
</li>
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<li><p id="change-0.3.9-24"><span class="target" id="change-1a5573250745da4cc296c5478a905559"><strong>[sql] </strong></span>fixed precedence of operators so that parenthesis are correctly applied<a class="changeset-link reference internal" href="#change-1a5573250745da4cc296c5478a905559">(link)</a><p> <a class="reference external" href="http://www.sqlalchemy.org/trac/ticket/620">#620</a></p>
540
</p>
541
</li>
542
<li><p id="change-0.3.9-25"><span class="target" id="change-f3c83d18250d490e0c0e719048bb5c78"><strong>[sql] </strong></span>calling <column>.in_() (i.e. with no arguments) will return
543
“CASE WHEN (<column> IS NULL) THEN NULL ELSE 0 END = 1)”, so that
544
NULL or False is returned in all cases, rather than throwing an error<a class="changeset-link reference internal" href="#change-f3c83d18250d490e0c0e719048bb5c78">(link)</a><p> <a class="reference external" href="http://www.sqlalchemy.org/trac/ticket/545">#545</a></p>
545
</p>
546
</li>
547
<li><p id="change-0.3.9-26"><span class="target" id="change-29d36e2ae856641782a99036963ac096"><strong>[sql] </strong></span>fixed “where”/”from” criterion of select() to accept a unicode string
548
in addition to regular string - both convert to text()<a class="changeset-link reference internal" href="#change-29d36e2ae856641782a99036963ac096">(link)</a><p></p>
549
</p>
550
</li>
551
<li><p id="change-0.3.9-27"><span class="target" id="change-d5193859e2955a59dd9b9689c9c46766"><strong>[sql] </strong></span>added standalone distinct() function in addition to column.distinct()<a class="changeset-link reference internal" href="#change-d5193859e2955a59dd9b9689c9c46766">(link)</a><p> <a class="reference external" href="http://www.sqlalchemy.org/trac/ticket/558">#558</a></p>
552
</p>
553
</li>
554
<li><p id="change-0.3.9-28"><span class="target" id="change-22737e38569c4710d50bad784dc3c2f6"><strong>[sql] </strong></span>result.last_inserted_ids() should return a list that is identically
555
sized to the primary key constraint of the table. values that were
556
“passively” created and not available via cursor.lastrowid will be None.<a class="changeset-link reference internal" href="#change-22737e38569c4710d50bad784dc3c2f6">(link)</a><p></p>
557
</p>
558
</li>
559
<li><p id="change-0.3.9-29"><span class="target" id="change-133fed2970fe02b19469b87df37569d2"><strong>[sql] </strong></span>long-identifier detection fixed to use > rather than >= for
560
max ident length<a class="changeset-link reference internal" href="#change-133fed2970fe02b19469b87df37569d2">(link)</a><p> <a class="reference external" href="http://www.sqlalchemy.org/trac/ticket/589">#589</a></p>
561
</p>
562
</li>
563
<li><p id="change-0.3.9-30"><span class="target" id="change-4b796f178bce68c33756958792addb5e"><strong>[sql] </strong></span>fixed bug where selectable.corresponding_column(selectable.c.col)
564
would not return selectable.c.col, if the selectable is a join
565
of a table and another join involving the same table. messed
566
up ORM decision making<a class="changeset-link reference internal" href="#change-4b796f178bce68c33756958792addb5e">(link)</a><p> <a class="reference external" href="http://www.sqlalchemy.org/trac/ticket/593">#593</a></p>
567
</p>
568
</li>
569
<li><p id="change-0.3.9-31"><span class="target" id="change-01be6714d969a9a05321795a1a05462e"><strong>[sql] </strong></span>added Interval type to types.py<a class="changeset-link reference internal" href="#change-01be6714d969a9a05321795a1a05462e">(link)</a><p> <a class="reference external" href="http://www.sqlalchemy.org/trac/ticket/595">#595</a></p>
570
</p>
571
</li>
572
</ul>
573
</div>
574
<div class="section" id="change-0.3.9-mysql">
575
<h3>mysql<a class="headerlink" href="#change-0.3.9-mysql" title="Permalink to this headline">¶</a></h3>
576
<ul class="simple">
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<li><p id="change-0.3.9-32"><span class="target" id="change-a2ea4c40b80240eda48ac840435d5023"><strong>[mysql] </strong></span>fixed catching of some errors that imply a dropped connection<a class="changeset-link reference internal" href="#change-a2ea4c40b80240eda48ac840435d5023">(link)</a><p> <a class="reference external" href="http://www.sqlalchemy.org/trac/ticket/625">#625</a></p>
578
</p>
579
</li>
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<li><p id="change-0.3.9-33"><span class="target" id="change-d2c713d82a5cc3352589d3b97a4f1a75"><strong>[mysql] </strong></span>fixed escaping of the modulo operator<a class="changeset-link reference internal" href="#change-d2c713d82a5cc3352589d3b97a4f1a75">(link)</a><p> <a class="reference external" href="http://www.sqlalchemy.org/trac/ticket/624">#624</a></p>
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</p>
582
</li>
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<li><p id="change-0.3.9-34"><span class="target" id="change-ccc1148a1c82ef495cc71ca9962442b9"><strong>[mysql] </strong></span>added ‘fields’ to reserved words<a class="changeset-link reference internal" href="#change-ccc1148a1c82ef495cc71ca9962442b9">(link)</a><p> <a class="reference external" href="http://www.sqlalchemy.org/trac/ticket/590">#590</a></p>
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</p>
585
</li>
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<li><p id="change-0.3.9-35"><span class="target" id="change-706aff419d104524d8aee408e01fca4b"><strong>[mysql] </strong></span>various reflection enhancement/fixes<a class="changeset-link reference internal" href="#change-706aff419d104524d8aee408e01fca4b">(link)</a><p></p>
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</p>
588
</li>
589
</ul>
590
</div>
591
<div class="section" id="change-0.3.9-sqlite">
592
<h3>sqlite<a class="headerlink" href="#change-0.3.9-sqlite" title="Permalink to this headline">¶</a></h3>
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<ul class="simple">
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<li><p id="change-0.3.9-36"><span class="target" id="change-cda34421fe7120853f316f8e8cfbc11b"><strong>[sqlite] </strong></span>rearranged dialect initialization so it has time to warn about pysqlite1
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being too old.<a class="changeset-link reference internal" href="#change-cda34421fe7120853f316f8e8cfbc11b">(link)</a><p></p>
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</p>
597
</li>
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<li><p id="change-0.3.9-37"><span class="target" id="change-123da4b941ba10797888a9215510d452"><strong>[sqlite] </strong></span>sqlite better handles datetime/date/time objects mixed and matched
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with various Date/Time/DateTime columns<a class="changeset-link reference internal" href="#change-123da4b941ba10797888a9215510d452">(link)</a><p></p>
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</p>
601
</li>
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<li><p id="change-0.3.9-38"><span class="target" id="change-2f48b0ceb4390d914ffb3fb359408074"><strong>[sqlite] </strong></span>string PK column inserts dont get overwritten with OID<a class="changeset-link reference internal" href="#change-2f48b0ceb4390d914ffb3fb359408074">(link)</a><p> <a class="reference external" href="http://www.sqlalchemy.org/trac/ticket/603">#603</a></p>
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</p>
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</li>
605
</ul>
606
</div>
607
<div class="section" id="change-0.3.9-mssql">
608
<h3>mssql<a class="headerlink" href="#change-0.3.9-mssql" title="Permalink to this headline">¶</a></h3>
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<ul class="simple">
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<li><p id="change-0.3.9-39"><span class="target" id="change-2bfbe63bd44f73945555c6ffb24c094e"><strong>[mssql] </strong></span>fix port option handling for pyodbc<a class="changeset-link reference internal" href="#change-2bfbe63bd44f73945555c6ffb24c094e">(link)</a><p> <a class="reference external" href="http://www.sqlalchemy.org/trac/ticket/634">#634</a></p>
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</p>
612
</li>
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<li><p id="change-0.3.9-40"><span class="target" id="change-1e148d4d69c64d022729a0015335e1e8"><strong>[mssql] </strong></span>now able to reflect start and increment values for identity columns<a class="changeset-link reference internal" href="#change-1e148d4d69c64d022729a0015335e1e8">(link)</a><p></p>
614
</p>
615
</li>
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<li><p id="change-0.3.9-41"><span class="target" id="change-439f3b4aba1eb4036d66b94a0f22614d"><strong>[mssql] </strong></span>preliminary support for using scope_identity() with pyodbc<a class="changeset-link reference internal" href="#change-439f3b4aba1eb4036d66b94a0f22614d">(link)</a><p></p>
617
</p>
618
</li>
619
</ul>
620
</div>
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<div class="section" id="change-0.3.9-oracle">
622
<h3>oracle<a class="headerlink" href="#change-0.3.9-oracle" title="Permalink to this headline">¶</a></h3>
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<ul class="simple">
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<li><p id="change-0.3.9-42"><span class="target" id="change-7c280ed8cae1ff8178c595a4ad188950"><strong>[oracle] </strong></span>datetime fixes: got subsecond TIMESTAMP to work,
625
added OracleDate which supports types.Date with only year/month/day<a class="changeset-link reference internal" href="#change-7c280ed8cae1ff8178c595a4ad188950">(link)</a><p> <a class="reference external" href="http://www.sqlalchemy.org/trac/ticket/604">#604</a></p>
626
</p>
627
</li>
628
<li><p id="change-0.3.9-43"><span class="target" id="change-fe2a41d1863a635eb6874cd35fb20b48"><strong>[oracle] </strong></span>added dialect flag “auto_convert_lobs”, defaults to True; will cause any
629
LOB objects detected in a result set to be forced into OracleBinary
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so that the LOB is read() automatically, if no typemap was present
631
(i.e., if a textual execute() was issued).<a class="changeset-link reference internal" href="#change-fe2a41d1863a635eb6874cd35fb20b48">(link)</a><p></p>
632
</p>
633
</li>
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<li><p id="change-0.3.9-44"><span class="target" id="change-1785061d703c74bd4913416cc528e437"><strong>[oracle] </strong></span>mod operator ‘%’ produces MOD<a class="changeset-link reference internal" href="#change-1785061d703c74bd4913416cc528e437">(link)</a><p> <a class="reference external" href="http://www.sqlalchemy.org/trac/ticket/624">#624</a></p>
635
</p>
636
</li>
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<li><p id="change-0.3.9-45"><span class="target" id="change-ae5989d376a6e417a66cf93a4214f7d1"><strong>[oracle] </strong></span>converts cx_oracle datetime objects to Python datetime.datetime when
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Python 2.3 used<a class="changeset-link reference internal" href="#change-ae5989d376a6e417a66cf93a4214f7d1">(link)</a><p> <a class="reference external" href="http://www.sqlalchemy.org/trac/ticket/542">#542</a></p>
639
</p>
640
</li>
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<li><p id="change-0.3.9-46"><span class="target" id="change-2cdcc2d95fcff22d45cbf69a4828bb78"><strong>[oracle] </strong></span>fixed unicode conversion in Oracle TEXT type<a class="changeset-link reference internal" href="#change-2cdcc2d95fcff22d45cbf69a4828bb78">(link)</a><p></p>
642
</p>
643
</li>
644
</ul>
645
</div>
646
<div class="section" id="change-0.3.9-misc">
647
<h3>misc<a class="headerlink" href="#change-0.3.9-misc" title="Permalink to this headline">¶</a></h3>
648
<ul class="simple">
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<li><p id="change-0.3.9-47"><span class="target" id="change-eb702c9d953f71913b8f13239bd1ace3"><strong>[ext] </strong></span>iteration over dict association proxies is now dict-like, not
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InstrumentedList-like (e.g. over keys instead of values)<a class="changeset-link reference internal" href="#change-eb702c9d953f71913b8f13239bd1ace3">(link)</a><p></p>
651
</p>
652
</li>
653
<li><p id="change-0.3.9-48"><span class="target" id="change-00e6c94fbb4056e8fd8396d98317361e"><strong>[ext] </strong></span>association proxies no longer bind tightly to source collections, and are constructed with a thunk instead<a class="changeset-link reference internal" href="#change-00e6c94fbb4056e8fd8396d98317361e">(link)</a><p> <a class="reference external" href="http://www.sqlalchemy.org/trac/ticket/597">#597</a></p>
654
</p>
655
</li>
656
<li><p id="change-0.3.9-49"><span class="target" id="change-2e4b108cd893d88498c7604cffd62078"><strong>[ext] </strong></span>added selectone_by() to assignmapper<a class="changeset-link reference internal" href="#change-2e4b108cd893d88498c7604cffd62078">(link)</a><p></p>
657
</p>
658
</li>
659
<li><p id="change-0.3.9-50"><span class="target" id="change-d2c713d82a5cc3352589d3b97a4f1a75"><strong>[postgres] </strong></span>fixed escaping of the modulo operator<a class="changeset-link reference internal" href="#change-d2c713d82a5cc3352589d3b97a4f1a75">(link)</a><p> <a class="reference external" href="http://www.sqlalchemy.org/trac/ticket/624">#624</a></p>
660
</p>
661
</li>
662
<li><p id="change-0.3.9-51"><span class="target" id="change-64c391579ec741ebb893bf0eda8954dd"><strong>[postgres] </strong></span>added support for reflection of domains<a class="changeset-link reference internal" href="#change-64c391579ec741ebb893bf0eda8954dd">(link)</a><p> <a class="reference external" href="http://www.sqlalchemy.org/trac/ticket/570">#570</a></p>
663
</p>
664
</li>
665
<li><p id="change-0.3.9-52"><span class="target" id="change-7155ff564edfbf3f017269ef87e325b1"><strong>[postgres] </strong></span>types which are missing during reflection resolve to Null type
666
instead of raising an error<a class="changeset-link reference internal" href="#change-7155ff564edfbf3f017269ef87e325b1">(link)</a><p></p>
667
</p>
668
</li>
669
<li><p id="change-0.3.9-53"><span class="target" id="change-059d6872923fb7b2dd4dbe3e1b480fa1"><strong>[postgres] </strong></span>the fix in “schema” above fixes reflection of foreign keys from an
670
alt-schema table to a public schema table<a class="changeset-link reference internal" href="#change-059d6872923fb7b2dd4dbe3e1b480fa1">(link)</a><p></p>
671
</p>
672
</li>
673
</ul>
674
</div>
675
</div>
676
<div class="section" id="change-0.3.8">
677
<h2>0.3.8<a class="headerlink" href="#change-0.3.8" title="Permalink to this headline">¶</a></h2>
678
Released: Sat Jun 02 2007<div class="section" id="change-0.3.8-orm">
679
<h3>orm<a class="headerlink" href="#change-0.3.8-orm" title="Permalink to this headline">¶</a></h3>
680
<ul class="simple">
681
<li><p id="change-0.3.8-0"><span class="target" id="change-220bb837574d279c29a38a113e5fe6cc"><strong>[orm] </strong></span>added reset_joinpoint() method to Query, moves the “join point”
682
back to the starting mapper. 0.4 will change the behavior of
683
join() to reset the “join point” in all cases so this is an
684
interim method. for forwards compatibility, ensure joins across
685
multiple relations are specified using a single join(), i.e.
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join([‘a’, ‘b’, ‘c’]).<a class="changeset-link reference internal" href="#change-220bb837574d279c29a38a113e5fe6cc">(link)</a><p></p>
687
</p>
688
</li>
689
<li><p id="change-0.3.8-1"><span class="target" id="change-c661fbef6dccf55ecb37aa3a399460ca"><strong>[orm] </strong></span>fixed bug in query.instances() that wouldnt handle more than
690
on additional mapper or one additional column.<a class="changeset-link reference internal" href="#change-c661fbef6dccf55ecb37aa3a399460ca">(link)</a><p></p>
691
</p>
692
</li>
693
<li><p id="change-0.3.8-2"><span class="target" id="change-0a134f37a0801fcebac51e263334c46e"><strong>[orm] </strong></span>“delete-orphan” no longer implies “delete”. ongoing effort to
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separate the behavior of these two operations.<a class="changeset-link reference internal" href="#change-0a134f37a0801fcebac51e263334c46e">(link)</a><p></p>
695
</p>
696
</li>
697
<li><p id="change-0.3.8-3"><span class="target" id="change-a7c0ffc4d0d71da2376e9be63199b048"><strong>[orm] </strong></span>many-to-many relationships properly set the type of bind params
698
for delete operations on the association table<a class="changeset-link reference internal" href="#change-a7c0ffc4d0d71da2376e9be63199b048">(link)</a><p></p>
699
</p>
700
</li>
701
<li><p id="change-0.3.8-4"><span class="target" id="change-cb313a2a343c37587dcb6a44a61e9cd5"><strong>[orm] </strong></span>many-to-many relationships check that the number of rows deleted
702
from the association table by a delete operation matches the
703
expected results<a class="changeset-link reference internal" href="#change-cb313a2a343c37587dcb6a44a61e9cd5">(link)</a><p></p>
704
</p>
705
</li>
706
<li><p id="change-0.3.8-5"><span class="target" id="change-54897ff1003859d627b70ac40c8e9c58"><strong>[orm] </strong></span>session.get() and session.load() propagate <a href="#id1"><span class="problematic" id="id2">**</span></a>kwargs through to
707
query<a class="changeset-link reference internal" href="#change-54897ff1003859d627b70ac40c8e9c58">(link)</a><p></p>
708
</p>
709
</li>
710
<li><p id="change-0.3.8-6"><span class="target" id="change-4900a187a33ec9e4b25fecb93f373349"><strong>[orm] </strong></span>fix to polymorphic query which allows the original
711
polymorphic_union to be embedded into a correlated subquery<a class="changeset-link reference internal" href="#change-4900a187a33ec9e4b25fecb93f373349">(link)</a><p> <a class="reference external" href="http://www.sqlalchemy.org/trac/ticket/577">#577</a></p>
712
</p>
713
</li>
714
<li><p id="change-0.3.8-7"><span class="target" id="change-8a65a9ccd3b899be79463c57097742a8"><strong>[orm] </strong></span>fix to select_by(<propname>=<object instance>) -style joins in
715
conjunction with many-to-many relationships, bug introduced in
716
r2556<a class="changeset-link reference internal" href="#change-8a65a9ccd3b899be79463c57097742a8">(link)</a><p></p>
717
</p>
718
</li>
719
<li><p id="change-0.3.8-8"><span class="target" id="change-364da54ef89796ce592a65df9986c2de"><strong>[orm] </strong></span>the “primary_key” argument to mapper() is propagated to the
720
“polymorphic” mapper. primary key columns in this list get
721
normalized to that of the mapper’s local table.<a class="changeset-link reference internal" href="#change-364da54ef89796ce592a65df9986c2de">(link)</a><p></p>
722
</p>
723
</li>
724
<li><p id="change-0.3.8-9"><span class="target" id="change-49c52ba1ca54032ac76f17ea1ac98f39"><strong>[orm] </strong></span>restored logging of “lazy loading clause” under
725
sa.orm.strategies logger, got removed in 0.3.7<a class="changeset-link reference internal" href="#change-49c52ba1ca54032ac76f17ea1ac98f39">(link)</a><p></p>
726
</p>
727
</li>
728
<li><p id="change-0.3.8-10"><span class="target" id="change-c4c11ecc4b62a615e38a3a2aa51ea362"><strong>[orm] </strong></span>improved support for eagerloading of properties off of mappers
729
that are mapped to select() statements; i.e. eagerloader is
730
better at locating the correct selectable with which to attach
731
its LEFT OUTER JOIN.<a class="changeset-link reference internal" href="#change-c4c11ecc4b62a615e38a3a2aa51ea362">(link)</a><p></p>
732
</p>
733
</li>
734
</ul>
735
</div>
736
<div class="section" id="change-0.3.8-sql">
737
<h3>sql<a class="headerlink" href="#change-0.3.8-sql" title="Permalink to this headline">¶</a></h3>
738
<ul class="simple">
739
<li><p id="change-0.3.8-11"><span class="target" id="change-b633ad04bf23c91721ac0943b6db5eca"><strong>[sql] </strong></span>_Label class overrides compare_self to return its ultimate
740
object. meaning, if you say someexpr.label(‘foo’) == 5, it
741
produces the correct “someexpr == 5”.<a class="changeset-link reference internal" href="#change-b633ad04bf23c91721ac0943b6db5eca">(link)</a><p></p>
742
</p>
743
</li>
744
<li><p id="change-0.3.8-12"><span class="target" id="change-2f98e49a9c61f9fdc7c291653364afe9"><strong>[sql] </strong></span>_Label propagates “_hide_froms()” so that scalar selects
745
behave more properly with regards to FROM clause #574<a class="changeset-link reference internal" href="#change-2f98e49a9c61f9fdc7c291653364afe9">(link)</a><p></p>
746
</p>
747
</li>
748
<li><p id="change-0.3.8-13"><span class="target" id="change-e7872b2b2a3bbd38c13e8950a8e540bf"><strong>[sql] </strong></span>fix to long name generation when using oid_column as an order by
749
(oids used heavily in mapper queries)<a class="changeset-link reference internal" href="#change-e7872b2b2a3bbd38c13e8950a8e540bf">(link)</a><p></p>
750
</p>
751
</li>
752
<li><p id="change-0.3.8-14"><span class="target" id="change-936ba4bd4f829a2f737cd53def3e14fc"><strong>[sql] </strong></span>significant speed improvement to ResultProxy, pre-caches
753
TypeEngine dialect implementations and saves on function calls
754
per column<a class="changeset-link reference internal" href="#change-936ba4bd4f829a2f737cd53def3e14fc">(link)</a><p></p>
755
</p>
756
</li>
757
<li><p id="change-0.3.8-15"><span class="target" id="change-fc92e69994fc285cf4e0fd2f1f78cec5"><strong>[sql] </strong></span>parenthesis are applied to clauses via a new _Grouping
758
construct. uses operator precedence to more intelligently apply
759
parenthesis to clauses, provides cleaner nesting of clauses
760
(doesnt mutate clauses placed in other clauses, i.e. no ‘parens’
761
flag)<a class="changeset-link reference internal" href="#change-fc92e69994fc285cf4e0fd2f1f78cec5">(link)</a><p></p>
762
</p>
763
</li>
764
<li><p id="change-0.3.8-16"><span class="target" id="change-bb4e8c5c4e8e15649157fd777ceefdc2"><strong>[sql] </strong></span>added ‘modifier’ keyword, works like func.<foo> except does not
765
add parenthesis. e.g. select([modifier.DISTINCT(...)]) etc.<a class="changeset-link reference internal" href="#change-bb4e8c5c4e8e15649157fd777ceefdc2">(link)</a><p></p>
766
</p>
767
</li>
768
<li><p id="change-0.3.8-17"><span class="target" id="change-430e33426127bd0c4c9394472a0c2590"><strong>[sql] </strong></span>removed “no group by’s in a select thats part of a UNION”
769
restriction<a class="changeset-link reference internal" href="#change-430e33426127bd0c4c9394472a0c2590">(link)</a><p> <a class="reference external" href="http://www.sqlalchemy.org/trac/ticket/578">#578</a></p>
770
</p>
771
</li>
772
</ul>
773
</div>
774
<div class="section" id="change-0.3.8-mysql">
775
<h3>mysql<a class="headerlink" href="#change-0.3.8-mysql" title="Permalink to this headline">¶</a></h3>
776
<ul class="simple">
777
<li><p id="change-0.3.8-18"><span class="target" id="change-9641b6abc326362d6deac112eace4afb"><strong>[mysql] </strong></span>Nearly all MySQL column types are now supported for declaration
778
and reflection. Added NCHAR, NVARCHAR, VARBINARY, TINYBLOB,
779
LONGBLOB, YEAR<a class="changeset-link reference internal" href="#change-9641b6abc326362d6deac112eace4afb">(link)</a><p></p>
780
</p>
781
</li>
782
<li><p id="change-0.3.8-19"><span class="target" id="change-18085e3f56d8b900bc96c38dd5a26b45"><strong>[mysql] </strong></span>The sqltypes.Binary passthrough now always builds a BLOB,
783
avoiding problems with very old database versions<a class="changeset-link reference internal" href="#change-18085e3f56d8b900bc96c38dd5a26b45">(link)</a><p></p>
784
</p>
785
</li>
786
<li><p id="change-0.3.8-20"><span class="target" id="change-9724aa42d8520597d817509db4f12ea8"><strong>[mysql] </strong></span>support for column-level CHARACTER SET and COLLATE declarations,
787
as well as ASCII, UNICODE, NATIONAL and BINARY shorthand.<a class="changeset-link reference internal" href="#change-9724aa42d8520597d817509db4f12ea8">(link)</a><p></p>
788
</p>
789
</li>
790
</ul>
791
</div>
792
<div class="section" id="change-0.3.8-firebird">
793
<h3>firebird<a class="headerlink" href="#change-0.3.8-firebird" title="Permalink to this headline">¶</a></h3>
794
<ul class="simple">
795
<li><p id="change-0.3.8-21"><span class="target" id="change-0a0b981a70a945c67ba5720e526c1f3c"><strong>[firebird] </strong></span>set max identifier length to 31<a class="changeset-link reference internal" href="#change-0a0b981a70a945c67ba5720e526c1f3c">(link)</a><p></p>
796
</p>
797
</li>
798
<li><p id="change-0.3.8-22"><span class="target" id="change-ee8ef044cfb4e438086a05caa7914ae7"><strong>[firebird] </strong></span>supports_sane_rowcount() set to False due to ticket #370.
799
versioned_id_col feature wont work in FB.<a class="changeset-link reference internal" href="#change-ee8ef044cfb4e438086a05caa7914ae7">(link)</a><p></p>
800
</p>
801
</li>
802
<li><p id="change-0.3.8-23"><span class="target" id="change-4caef4c969ab8a7577cc51fc60890d5e"><strong>[firebird] </strong></span>some execution fixes<a class="changeset-link reference internal" href="#change-4caef4c969ab8a7577cc51fc60890d5e">(link)</a><p></p>
803
</p>
804
</li>
805
<li><p id="change-0.3.8-24"><span class="target" id="change-794981a4b2ff6f2c7dd837ecebbc73c5"><strong>[firebird] </strong></span>new association proxy implementation, implementing complete
806
proxies to list, dict and set-based relation collections<a class="changeset-link reference internal" href="#change-794981a4b2ff6f2c7dd837ecebbc73c5">(link)</a><p></p>
807
</p>
808
</li>
809
<li><p id="change-0.3.8-25"><span class="target" id="change-63cb2d366f99e745287c162781638285"><strong>[firebird] </strong></span>added orderinglist, a custom list class that synchronizes an
810
object attribute with that object’s position in the list<a class="changeset-link reference internal" href="#change-63cb2d366f99e745287c162781638285">(link)</a><p></p>
811
</p>
812
</li>
813
<li><p id="change-0.3.8-26"><span class="target" id="change-26aa9970c7ff168af29ed9bc9c0eed85"><strong>[firebird] </strong></span>small fix to SelectResultsExt to not bypass itself during
814
select().<a class="changeset-link reference internal" href="#change-26aa9970c7ff168af29ed9bc9c0eed85">(link)</a><p></p>
815
</p>
816
</li>
817
<li><p id="change-0.3.8-27"><span class="target" id="change-59a547b4472cbf0c7ab99ad2df75dfd1"><strong>[firebird] </strong></span>added filter(), filter_by() to assignmapper<a class="changeset-link reference internal" href="#change-59a547b4472cbf0c7ab99ad2df75dfd1">(link)</a><p></p>
818
</p>
819
</li>
820
</ul>
821
</div>
822
<div class="section" id="change-0.3.8-misc">
823
<h3>misc<a class="headerlink" href="#change-0.3.8-misc" title="Permalink to this headline">¶</a></h3>
824
<ul class="simple">
825
<li><p id="change-0.3.8-28"><span class="target" id="change-dac5031c19faee84b91961d912ecba94"><strong>[engines] </strong></span>added detach() to Connection, allows underlying DBAPI connection
826
to be detached from its pool, closing on dereference/close()
827
instead of being reused by the pool.<a class="changeset-link reference internal" href="#change-dac5031c19faee84b91961d912ecba94">(link)</a><p></p>
828
</p>
829
</li>
830
<li><p id="change-0.3.8-29"><span class="target" id="change-4f0f262d9c14896c7b7e1477cfee8d6e"><strong>[engines] </strong></span>added invalidate() to Connection, immediately invalidates the
831
Connection and its underlying DBAPI connection.<a class="changeset-link reference internal" href="#change-4f0f262d9c14896c7b7e1477cfee8d6e">(link)</a><p></p>
832
</p>
833
</li>
834
</ul>
835
</div>
836
</div>
837
<div class="section" id="change-0.3.7">
838
<h2>0.3.7<a class="headerlink" href="#change-0.3.7" title="Permalink to this headline">¶</a></h2>
839
Released: Sun Apr 29 2007<div class="section" id="change-0.3.7-orm">
840
<h3>orm<a class="headerlink" href="#change-0.3.7-orm" title="Permalink to this headline">¶</a></h3>
841
<ul class="simple">
842
<li><p id="change-0.3.7-0"><span class="target" id="change-b70a16716f8cf919b358494b261c6e83"><strong>[orm] </strong></span>fixed critical issue when, after options(eagerload()) is used,
843
the mapper would then always apply query “wrapping” behavior
844
for all subsequent LIMIT/OFFSET/DISTINCT queries, even if no
845
eager loading was applied on those subsequent queries.<a class="changeset-link reference internal" href="#change-b70a16716f8cf919b358494b261c6e83">(link)</a><p></p>
846
</p>
847
</li>
848
<li><p id="change-0.3.7-1"><span class="target" id="change-7861d96f724ca34ac55a3d701575ffac"><strong>[orm] </strong></span>added query.with_parent(someinstance) method. searches for
849
target instance using lazy join criterion from parent instance.
850
takes optional string “property” to isolate the desired relation.
851
also adds static Query.query_from_parent(instance, property)
852
version.<a class="changeset-link reference internal" href="#change-7861d96f724ca34ac55a3d701575ffac">(link)</a><p> <a class="reference external" href="http://www.sqlalchemy.org/trac/ticket/541">#541</a></p>
853
</p>
854
</li>
855
<li><p id="change-0.3.7-2"><span class="target" id="change-3a8b0fc4795043a6b42596d769387cb9"><strong>[orm] </strong></span>improved query.XXX_by(someprop=someinstance) querying to use
856
similar methodology to with_parent, i.e. using the “lazy” clause
857
which prevents adding the remote instance’s table to the SQL,
858
thereby making more complex conditions possible<a class="changeset-link reference internal" href="#change-3a8b0fc4795043a6b42596d769387cb9">(link)</a><p> <a class="reference external" href="http://www.sqlalchemy.org/trac/ticket/554">#554</a></p>
859
</p>
860
</li>
861
<li><p id="change-0.3.7-3"><span class="target" id="change-0a56acf715d490dcc5adea669d5277ac"><strong>[orm] </strong></span>added generative versions of aggregates, i.e. sum(), avg(), etc.
862
to query. used via query.apply_max(), apply_sum(), etc.
863
#552<a class="changeset-link reference internal" href="#change-0a56acf715d490dcc5adea669d5277ac">(link)</a><p></p>
864
</p>
865
</li>
866
<li><p id="change-0.3.7-4"><span class="target" id="change-007141aca01632f5db21be3524e7e4b1"><strong>[orm] </strong></span>fix to using distinct() or distinct=True in combination with
867
join() and similar<a class="changeset-link reference internal" href="#change-007141aca01632f5db21be3524e7e4b1">(link)</a><p></p>
868
</p>
869
</li>
870
<li><p id="change-0.3.7-5"><span class="target" id="change-cc8527d248fb3499b4a18f6718a08f7c"><strong>[orm] </strong></span>corresponding to label/bindparam name generation, eager loaders
871
generate deterministic names for the aliases they create using
872
md5 hashes.<a class="changeset-link reference internal" href="#change-cc8527d248fb3499b4a18f6718a08f7c">(link)</a><p></p>
873
</p>
874
</li>
875
<li><p id="change-0.3.7-6"><span class="target" id="change-5519681da8ec6c0511745ace0e07a5e5"><strong>[orm] </strong></span>improved/fixed custom collection classes when giving it “set”/
876
“sets.Set” classes or subclasses (was still looking for append()
877
methods on them during lazy loads)<a class="changeset-link reference internal" href="#change-5519681da8ec6c0511745ace0e07a5e5">(link)</a><p></p>
878
</p>
879
</li>
880
<li><p id="change-0.3.7-7"><span class="target" id="change-2352eeb7d6a38352d971f1ff1053808f"><strong>[orm] </strong></span>restored old “column_property()” ORM function (used to be called
881
“column()”) to force any column expression to be added as a property
882
on a mapper, particularly those that aren’t present in the mapped
883
selectable. this allows “scalar expressions” of any kind to be
884
added as relations (though they have issues with eager loads).<a class="changeset-link reference internal" href="#change-2352eeb7d6a38352d971f1ff1053808f">(link)</a><p></p>
885
</p>
886
</li>
887
<li><p id="change-0.3.7-8"><span class="target" id="change-af6355eefc1aad1a89924b3f68f75920"><strong>[orm] </strong></span>fix to many-to-many relationships targeting polymorphic mappers<a class="changeset-link reference internal" href="#change-af6355eefc1aad1a89924b3f68f75920">(link)</a><p> <a class="reference external" href="http://www.sqlalchemy.org/trac/ticket/533">#533</a></p>
888
</p>
889
</li>
890
<li><p id="change-0.3.7-9"><span class="target" id="change-9f1f52abb6da3c56fff913386ceb7882"><strong>[orm] </strong></span>making progress with session.merge() as well as combining its
891
usage with entity_name<a class="changeset-link reference internal" href="#change-9f1f52abb6da3c56fff913386ceb7882">(link)</a><p> <a class="reference external" href="http://www.sqlalchemy.org/trac/ticket/543">#543</a></p>
892
</p>
893
</li>
894
<li><p id="change-0.3.7-10"><span class="target" id="change-065b2f4a27d4207c1c01b7aaade4db8a"><strong>[orm] </strong></span>the usual adjustments to relationships between inheriting mappers,
895
in this case establishing relation()s to subclass mappers where
896
the join conditions come from the superclass’ table<a class="changeset-link reference internal" href="#change-065b2f4a27d4207c1c01b7aaade4db8a">(link)</a><p></p>
897
</p>
898
</li>
899
</ul>
900
</div>
901
<div class="section" id="change-0.3.7-sql">
902
<h3>sql<a class="headerlink" href="#change-0.3.7-sql" title="Permalink to this headline">¶</a></h3>
903
<ul class="simple">
904
<li><p id="change-0.3.7-11"><span class="target" id="change-73d7e6b1e7916be07e30cac965961ce9"><strong>[sql] </strong></span>keys() of result set columns are not lowercased, come back
905
exactly as they’re expressed in cursor.description. note this
906
causes colnames to be all caps in oracle.<a class="changeset-link reference internal" href="#change-73d7e6b1e7916be07e30cac965961ce9">(link)</a><p></p>
907
</p>
908
</li>
909
<li><p id="change-0.3.7-12"><span class="target" id="change-c37360d8b51c05ae857e5b9716bddbcb"><strong>[sql] </strong></span>preliminary support for unicode table names, column names and
910
SQL statements added, for databases which can support them.
911
Works with sqlite and postgres so far. Mysql <em>mostly</em> works
912
except the has_table() function does not work. Reflection
913
works too.<a class="changeset-link reference internal" href="#change-c37360d8b51c05ae857e5b9716bddbcb">(link)</a><p></p>
914
</p>
915
</li>
916
<li><p id="change-0.3.7-13"><span class="target" id="change-fffe5705a0f33aa08fa8f28f1ec39a83"><strong>[sql] </strong></span>the Unicode type is now a direct subclass of String, which now
917
contains all the “convert_unicode” logic. This helps the variety
918
of unicode situations that occur in db’s such as MS-SQL to be
919
better handled and allows subclassing of the Unicode datatype.<a class="changeset-link reference internal" href="#change-fffe5705a0f33aa08fa8f28f1ec39a83">(link)</a><p> <a class="reference external" href="http://www.sqlalchemy.org/trac/ticket/522">#522</a></p>
920
</p>
921
</li>
922
<li><p id="change-0.3.7-14"><span class="target" id="change-801d06dffa1b17f7712f296ca71f5a79"><strong>[sql] </strong></span>ClauseElements can be used in in_() clauses now, such as bind
923
parameters, etc. #476<a class="changeset-link reference internal" href="#change-801d06dffa1b17f7712f296ca71f5a79">(link)</a><p></p>
924
</p>
925
</li>
926
<li><p id="change-0.3.7-15"><span class="target" id="change-2fdb206fa85f07e5f47bba08e0c06013"><strong>[sql] </strong></span>reverse operators implemented for <cite>CompareMixin</cite> elements,
927
allows expressions like “5 + somecolumn” etc. #474<a class="changeset-link reference internal" href="#change-2fdb206fa85f07e5f47bba08e0c06013">(link)</a><p></p>
928
</p>
929
</li>
930
<li><p id="change-0.3.7-16"><span class="target" id="change-ff895df76dd194eb810e5ca68bd903dd"><strong>[sql] </strong></span>the “where” criterion of an update() and delete() now correlates
931
embedded select() statements against the table being updated or
932
deleted. this works the same as nested select() statement
933
correlation, and can be disabled via the correlate=False flag on
934
the embedded select().<a class="changeset-link reference internal" href="#change-ff895df76dd194eb810e5ca68bd903dd">(link)</a><p></p>
935
</p>
936
</li>
937
<li><p id="change-0.3.7-17"><span class="target" id="change-88d7569964a508ab2262f1926b13c92d"><strong>[sql] </strong></span>column labels are now generated in the compilation phase, which
938
means their lengths are dialect-dependent. So on oracle a label
939
that gets truncated to 30 chars will go out to 63 characters
940
on postgres. Also, the true labelname is always attached as the
941
accessor on the parent Selectable so theres no need to be aware
942
of the “truncated” label names.<a class="changeset-link reference internal" href="#change-88d7569964a508ab2262f1926b13c92d">(link)</a><p> <a class="reference external" href="http://www.sqlalchemy.org/trac/ticket/512">#512</a></p>
943
</p>
944
</li>
945
<li><p id="change-0.3.7-18"><span class="target" id="change-3a29e9cb61a8969eac7d12324eb44f91"><strong>[sql] </strong></span>column label and bind param “truncation” also generate
946
deterministic names now, based on their ordering within the
947
full statement being compiled. this means the same statement
948
will produce the same string across application restarts and
949
allowing DB query plan caching to work better.<a class="changeset-link reference internal" href="#change-3a29e9cb61a8969eac7d12324eb44f91">(link)</a><p></p>
950
</p>
951
</li>
952
<li><p id="change-0.3.7-19"><span class="target" id="change-07643dfce558c48c88fcd3c0dbbc207c"><strong>[sql] </strong></span>the “mini” column labels generated when using subqueries, which
953
are to work around glitchy SQLite behavior that doesnt understand
954
“foo.id” as equivalent to “id”, are now only generated in the case
955
that those named columns are selected from (part of)<a class="changeset-link reference internal" href="#change-07643dfce558c48c88fcd3c0dbbc207c">(link)</a><p> <a class="reference external" href="http://www.sqlalchemy.org/trac/ticket/513">#513</a></p>
956
</p>
957
</li>
958
<li><p id="change-0.3.7-20"><span class="target" id="change-6db4c8aa79f09bcab6c7161873c65f93"><strong>[sql] </strong></span>the label() method on ColumnElement will properly propagate the
959
TypeEngine of the base element out to the label, including a label()
960
created from a scalar=True select() statement.<a class="changeset-link reference internal" href="#change-6db4c8aa79f09bcab6c7161873c65f93">(link)</a><p></p>
961
</p>
962
</li>
963
<li><p id="change-0.3.7-21"><span class="target" id="change-c987bd1aeea789b13f68c82c9c4a4ff7"><strong>[sql] </strong></span>MS-SQL better detects when a query is a subquery and knows not to
964
generate ORDER BY phrases for those<a class="changeset-link reference internal" href="#change-c987bd1aeea789b13f68c82c9c4a4ff7">(link)</a><p> <a class="reference external" href="http://www.sqlalchemy.org/trac/ticket/513">#513</a></p>
965
</p>
966
</li>
967
<li><p id="change-0.3.7-22"><span class="target" id="change-6f431b2f1da5df6d8744478e753a48e3"><strong>[sql] </strong></span>fix for fetchmany() “size” argument being positional in most
968
dbapis<a class="changeset-link reference internal" href="#change-6f431b2f1da5df6d8744478e753a48e3">(link)</a><p> <a class="reference external" href="http://www.sqlalchemy.org/trac/ticket/505">#505</a></p>
969
</p>
970
</li>
971
<li><p id="change-0.3.7-23"><span class="target" id="change-62f64e15e5caee27d5fdb304138a3d64"><strong>[sql] </strong></span>sending None as an argument to func.<something> will produce
972
an argument of NULL<a class="changeset-link reference internal" href="#change-62f64e15e5caee27d5fdb304138a3d64">(link)</a><p></p>
973
</p>
974
</li>
975
<li><p id="change-0.3.7-24"><span class="target" id="change-0a8f61fa87fa2100ea72c52733d4d2da"><strong>[sql] </strong></span>query strings in unicode URLs get keys encoded to ascii
976
for <a href="#id3"><span class="problematic" id="id4">**</span></a>kwargs compat<a class="changeset-link reference internal" href="#change-0a8f61fa87fa2100ea72c52733d4d2da">(link)</a><p></p>
977
</p>
978
</li>
979
<li><p id="change-0.3.7-25"><span class="target" id="change-d6bccf2e2942ba9e7fc42b6359f5e1c5"><strong>[sql] </strong></span>slight tweak to raw execute() change to also support tuples
980
for positional parameters, not just lists<a class="changeset-link reference internal" href="#change-d6bccf2e2942ba9e7fc42b6359f5e1c5">(link)</a><p> <a class="reference external" href="http://www.sqlalchemy.org/trac/ticket/523">#523</a></p>
981
</p>
982
</li>
983
<li><p id="change-0.3.7-26"><span class="target" id="change-e896659511f05a46c43f0bbb4a6ce393"><strong>[sql] </strong></span>fix to case() construct to propagate the type of the first
984
WHEN condition as the return type of the case statement<a class="changeset-link reference internal" href="#change-e896659511f05a46c43f0bbb4a6ce393">(link)</a><p></p>
985
</p>
986
</li>
987
</ul>
988
</div>
989
<div class="section" id="change-0.3.7-mysql">
990
<h3>mysql<a class="headerlink" href="#change-0.3.7-mysql" title="Permalink to this headline">¶</a></h3>
991
<ul class="simple">
992
<li><p id="change-0.3.7-27"><span class="target" id="change-692e1565645dbe8b9ef8164203b1c946"><strong>[mysql] </strong></span>support for SSL arguments given as inline within URL query string,
993
prefixed with “<a href="#id15"><span class="problematic" id="id16">ssl_</span></a>”, courtesy <a class="reference external" href="mailto:terjeros%40gmail.com">terjeros<span>@</span>gmail<span>.</span>com</a>.<a class="changeset-link reference internal" href="#change-692e1565645dbe8b9ef8164203b1c946">(link)</a><p></p>
994
</p>
995
</li>
996
<li><p id="change-0.3.7-28"><span class="target" id="change-40376dca5b9584c8cc73f958c6409a48"><strong>[mysql] [<schemaname>] </strong></span>mysql uses “DESCRIBE.<tablename>”, catching exceptions
997
if table doesnt exist, in order to determine if a table exists.
998
this supports unicode table names as well as schema names. tested
999
with MySQL5 but should work with 4.1 series as well. (#557)<a class="changeset-link reference internal" href="#change-40376dca5b9584c8cc73f958c6409a48">(link)</a><p></p>
1000
</p>
1001
</li>
1002
</ul>
1003
</div>
1004
<div class="section" id="change-0.3.7-sqlite">
1005
<h3>sqlite<a class="headerlink" href="#change-0.3.7-sqlite" title="Permalink to this headline">¶</a></h3>
1006
<ul class="simple">
1007
<li><p id="change-0.3.7-29"><span class="target" id="change-cf170dcbc751945cb3050b2aba47a7fc"><strong>[sqlite] </strong></span>removed silly behavior where sqlite would reflect UNIQUE indexes
1008
as part of the primary key (?!)<a class="changeset-link reference internal" href="#change-cf170dcbc751945cb3050b2aba47a7fc">(link)</a><p></p>
1009
</p>
1010
</li>
1011
</ul>
1012
</div>
1013
<div class="section" id="change-0.3.7-mssql">
1014
<h3>mssql<a class="headerlink" href="#change-0.3.7-mssql" title="Permalink to this headline">¶</a></h3>
1015
<ul class="simple">
1016
<li><p id="change-0.3.7-30"><span class="target" id="change-cd069bfe49e81ecb1723ce2f455629d9"><strong>[mssql] </strong></span>pyodbc is now the preferred DB-API for MSSQL, and if no module is
1017
specifically requested, will be loaded first on a module probe.<a class="changeset-link reference internal" href="#change-cd069bfe49e81ecb1723ce2f455629d9">(link)</a><p></p>
1018
</p>
1019
</li>
1020
<li><p id="change-0.3.7-31"><span class="target" id="change-98f166632883a1f0f0e9b5551435f1e4"><strong>[mssql] </strong></span>The @@SCOPE_IDENTITY is now used instead of @@IDENTITY. This
1021
behavior may be overridden with the engine_connect
1022
“use_scope_identity” keyword parameter, which may also be specified
1023
in the dburi.<a class="changeset-link reference internal" href="#change-98f166632883a1f0f0e9b5551435f1e4">(link)</a><p></p>
1024
</p>
1025
</li>
1026
</ul>
1027
</div>
1028
<div class="section" id="change-0.3.7-oracle">
1029
<h3>oracle<a class="headerlink" href="#change-0.3.7-oracle" title="Permalink to this headline">¶</a></h3>
1030
<ul class="simple">
1031
<li><p id="change-0.3.7-32"><span class="target" id="change-00f079e3efc304a332a86ad53163494c"><strong>[oracle] </strong></span>small fix to allow successive compiles of the same SELECT object
1032
which features LIMIT/OFFSET. oracle dialect needs to modify
1033
the object to have ROW_NUMBER OVER and wasn’t performing
1034
the full series of steps on successive compiles.<a class="changeset-link reference internal" href="#change-00f079e3efc304a332a86ad53163494c">(link)</a><p></p>
1035
</p>
1036
</li>
1037
</ul>
1038
</div>
1039
<div class="section" id="change-0.3.7-misc">
1040
<h3>misc<a class="headerlink" href="#change-0.3.7-misc" title="Permalink to this headline">¶</a></h3>
1041
<ul class="simple">
1042
<li><p id="change-0.3.7-33"><span class="target" id="change-5769c29329bd92d3e0d54145d3c84967"><strong>[engines] </strong></span>warnings module used for issuing warnings (instead of logging)<a class="changeset-link reference internal" href="#change-5769c29329bd92d3e0d54145d3c84967">(link)</a><p></p>
1043
</p>
1044
</li>
1045
<li><p id="change-0.3.7-34"><span class="target" id="change-7d24501b7c507a99a005fca1ced19d34"><strong>[engines] </strong></span>cleanup of DBAPI import strategies across all engines<a class="changeset-link reference internal" href="#change-7d24501b7c507a99a005fca1ced19d34">(link)</a><p> <a class="reference external" href="http://www.sqlalchemy.org/trac/ticket/480">#480</a></p>
1046
</p>
1047
</li>
1048
<li><p id="change-0.3.7-35"><span class="target" id="change-093f6563bc1d6302a6c65091f189c417"><strong>[engines] </strong></span>refactoring of engine internals which reduces complexity,
1049
number of codepaths; places more state inside of ExecutionContext
1050
to allow more dialect control of cursor handling, result sets.
1051
ResultProxy totally refactored and also has two versions of
1052
“buffered” result sets used for different purposes.<a class="changeset-link reference internal" href="#change-093f6563bc1d6302a6c65091f189c417">(link)</a><p></p>
1053
</p>
1054
</li>
1055
<li><p id="change-0.3.7-36"><span class="target" id="change-7563427af9a2dbabdc41b671f9119253"><strong>[engines] </strong></span>server side cursor support fully functional in postgres.<a class="changeset-link reference internal" href="#change-7563427af9a2dbabdc41b671f9119253">(link)</a><p> <a class="reference external" href="http://www.sqlalchemy.org/trac/ticket/514">#514</a></p>
1056
</p>
1057
</li>
1058
<li><p id="change-0.3.7-37"><span class="target" id="change-de2734d32f9f75ca5bf6decc1c56eb11"><strong>[engines] </strong></span>improved framework for auto-invalidation of connections that have
1059
lost their underlying database, via dialect-specific detection
1060
of exceptions corresponding to that database’s disconnect
1061
related error messages. Additionally, when a “connection no
1062
longer open” condition is detected, the entire connection pool
1063
is discarded and replaced with a new instance. #516<a class="changeset-link reference internal" href="#change-de2734d32f9f75ca5bf6decc1c56eb11">(link)</a><p></p>
1064
</p>
1065
</li>
1066
<li><p id="change-0.3.7-38"><span class="target" id="change-f7455a9f34d7db0039194c7cdeef8441"><strong>[engines] </strong></span>the dialects within sqlalchemy.databases become a setuptools
1067
entry points. loading the built-in database dialects works the
1068
same as always, but if none found will fall back to trying
1069
pkg_resources to load an external module<a class="changeset-link reference internal" href="#change-f7455a9f34d7db0039194c7cdeef8441">(link)</a><p> <a class="reference external" href="http://www.sqlalchemy.org/trac/ticket/521">#521</a></p>
1070
</p>
1071
</li>
1072
<li><p id="change-0.3.7-39"><span class="target" id="change-b231bc2f156428e9dc2d3013d285ace8"><strong>[engines] </strong></span>Engine contains a “url” attribute referencing the url.URL object
1073
used by create_engine().<a class="changeset-link reference internal" href="#change-b231bc2f156428e9dc2d3013d285ace8">(link)</a><p></p>
1074
</p>
1075
</li>
1076
<li><p id="change-0.3.7-40"><span class="target" id="change-ad45e2908330aaa751332d0c9d866f98"><strong>[informix] </strong></span>informix support added ! courtesy James Zhang, who put a ton
1077
of effort in.<a class="changeset-link reference internal" href="#change-ad45e2908330aaa751332d0c9d866f98">(link)</a><p></p>
1078
</p>
1079
</li>
1080
<li><p id="change-0.3.7-41"><span class="target" id="change-a5ce4383d5826666ad4659e0d0d1b1f0"><strong>[extensions] </strong></span>big fix to AssociationProxy so that multiple AssociationProxy
1081
objects can be associated with a single association collection.<a class="changeset-link reference internal" href="#change-a5ce4383d5826666ad4659e0d0d1b1f0">(link)</a><p></p>
1082
</p>
1083
</li>
1084
<li><p id="change-0.3.7-42"><span class="target" id="change-7d3dab36a8f8dd803d9be9c4c038dd9e"><strong>[extensions] </strong></span>assign_mapper names methods according to their keys (i.e. __name__)
1085
#551<a class="changeset-link reference internal" href="#change-7d3dab36a8f8dd803d9be9c4c038dd9e">(link)</a><p></p>
1086
</p>
1087
</li>
1088
</ul>
1089
</div>
1090
</div>
1091
<div class="section" id="change-0.3.6">
1092
<h2>0.3.6<a class="headerlink" href="#change-0.3.6" title="Permalink to this headline">¶</a></h2>
1093
Released: Fri Mar 23 2007<div class="section" id="change-0.3.6-orm">
1094
<h3>orm<a class="headerlink" href="#change-0.3.6-orm" title="Permalink to this headline">¶</a></h3>
1095
<ul class="simple">
1096
<li><p id="change-0.3.6-0"><span class="target" id="change-7ab6dfcb95c397cb1aaadd385c779659"><strong>[orm] </strong></span>the full featureset of the SelectResults extension has been merged
1097
into a new set of methods available off of Query. These methods
1098
all provide “generative” behavior, whereby the Query is copied
1099
and a new one returned with additional criterion added.
1100
The new methods include:<blockquote>
1101
<div>filter() - applies select criterion to the query
1102
filter_by() - applies “by”-style criterion to the query
1103
avg() - return the avg() function on the given column
1104
join() - join to a property (or across a list of properties)
1105
outerjoin() - like join() but uses LEFT OUTER JOIN
1106
limit()/offset() - apply LIMIT/OFFSET
1107
range-based access which applies limit/offset:<blockquote>
1108
<div>session.query(Foo)[3:5]</div></blockquote>
1109
<p>distinct() - apply DISTINCT
1110
list() - evaluate the criterion and return results</p>
1111
</div></blockquote>
1112
<p>no incompatible changes have been made to Query’s API and no methods
1113
have been deprecated. Existing methods like select(), select_by(),
1114
get(), get_by() all execute the query at once and return results
1115
like they always did. join_to()/join_via() are still there although
1116
the generative join()/outerjoin() methods are easier to use.</p>
1117
<a class="changeset-link reference internal" href="#change-7ab6dfcb95c397cb1aaadd385c779659">(link)</a><p></p>
1118
</p>
1119
</li>
1120
<li><p id="change-0.3.6-1"><span class="target" id="change-346e841422c49f67aa893590d3f7a8e9"><strong>[orm] </strong></span>the return value for multiple mappers used with instances() now
1121
returns a cartesian product of the requested list of mappers,
1122
represented as a list of tuples. this corresponds to the documented
1123
behavior. So that instances match up properly, the “uniquing” is
1124
disabled when this feature is used.<a class="changeset-link reference internal" href="#change-346e841422c49f67aa893590d3f7a8e9">(link)</a><p></p>
1125
</p>
1126
</li>
1127
<li><p id="change-0.3.6-2"><span class="target" id="change-2795377646e93c3cb6cd134003d5dbe1"><strong>[orm] </strong></span>Query has add_entity() and add_column() generative methods. these
1128
will add the given mapper/class or ColumnElement to the query at
1129
compile time, and apply them to the instances() method. the user is
1130
responsible for constructing reasonable join conditions (otherwise
1131
you can get full cartesian products). result set is the list of
1132
tuples, non-uniqued.<a class="changeset-link reference internal" href="#change-2795377646e93c3cb6cd134003d5dbe1">(link)</a><p></p>
1133
</p>
1134
</li>
1135
<li><p id="change-0.3.6-3"><span class="target" id="change-9075bb25cf6ce0ef7196609ee5a05d53"><strong>[orm] </strong></span>strings and columns can also be sent to the <a href="#id5"><span class="problematic" id="id6">*</span></a>args of instances()
1136
where those exact result columns will be part of the result tuples.<a class="changeset-link reference internal" href="#change-9075bb25cf6ce0ef7196609ee5a05d53">(link)</a><p></p>
1137
</p>
1138
</li>
1139
<li><p id="change-0.3.6-4"><span class="target" id="change-1dc867b13e1759c636e371363f6ce297"><strong>[orm] </strong></span>a full select() construct can be passed to query.select() (which
1140
worked anyway), but also query.selectfirst(), query.selectone()
1141
which will be used as is (i.e. no query is compiled). works
1142
similarly to sending the results to instances().<a class="changeset-link reference internal" href="#change-1dc867b13e1759c636e371363f6ce297">(link)</a><p></p>
1143
</p>
1144
</li>
1145
<li><p id="change-0.3.6-5"><span class="target" id="change-074438c0a67e60bc48e5420c5f490210"><strong>[orm] </strong></span>eager loading will not “aliasize” “order by” clauses that were
1146
placed in the select statement by something other than the eager
1147
loader itself, to fix possibility of dupe columns as illustrated in. however, this means you have to be more careful with
1148
the columns placed in the “order by” of Query.select(), that you
1149
have explicitly named them in your criterion (i.e. you cant rely on
1150
the eager loader adding them in for you)<a class="changeset-link reference internal" href="#change-074438c0a67e60bc48e5420c5f490210">(link)</a><p> <a class="reference external" href="http://www.sqlalchemy.org/trac/ticket/495">#495</a></p>
1151
</p>
1152
</li>
1153
<li><p id="change-0.3.6-6"><span class="target" id="change-8b4f380caf9d0a368e04cc060655abf0"><strong>[orm] </strong></span>added a handy multi-use “identity_key()” method to Session, allowing
1154
the generation of identity keys for primary key values, instances,
1155
and rows, courtesy Daniel Miller<a class="changeset-link reference internal" href="#change-8b4f380caf9d0a368e04cc060655abf0">(link)</a><p></p>
1156
</p>
1157
</li>
1158
<li><p id="change-0.3.6-7"><span class="target" id="change-87bb32d802de386360e5e46f791cdc52"><strong>[orm] </strong></span>many-to-many table will be properly handled even for operations that
1159
occur on the “backref” side of the operation<a class="changeset-link reference internal" href="#change-87bb32d802de386360e5e46f791cdc52">(link)</a><p> <a class="reference external" href="http://www.sqlalchemy.org/trac/ticket/249">#249</a></p>
1160
</p>
1161
</li>
1162
<li><p id="change-0.3.6-8"><span class="target" id="change-f1fbd06064c54bcac62f1348d7009f7a"><strong>[orm] </strong></span>added “refresh-expire” cascade. allows refresh() and
1163
expire() calls to propagate along relationships.<a class="changeset-link reference internal" href="#change-f1fbd06064c54bcac62f1348d7009f7a">(link)</a><p> <a class="reference external" href="http://www.sqlalchemy.org/trac/ticket/492">#492</a></p>
1164
</p>
1165
</li>
1166
<li><p id="change-0.3.6-9"><span class="target" id="change-a975d6c5aa852fe9f1abe18ab4632941"><strong>[orm] </strong></span>more fixes to polymorphic relations, involving proper lazy-clause
1167
generation on many-to-one relationships to polymorphic mappers. also fixes to detection of “direction”, more specific
1168
targeting of columns that belong to the polymorphic union vs. those
1169
that dont.<a class="changeset-link reference internal" href="#change-a975d6c5aa852fe9f1abe18ab4632941">(link)</a><p> <a class="reference external" href="http://www.sqlalchemy.org/trac/ticket/493">#493</a></p>
1170
</p>
1171
</li>
1172
<li><p id="change-0.3.6-10"><span class="target" id="change-e60d7d1fb1e21d20e22cc7ee0a48e8cd"><strong>[orm] </strong></span>some fixes to relationship calcs when using “viewonly=True” to pull
1173
in other tables into the join condition which arent parent of the
1174
relationship’s parent/child mappings<a class="changeset-link reference internal" href="#change-e60d7d1fb1e21d20e22cc7ee0a48e8cd">(link)</a><p></p>
1175
</p>
1176
</li>
1177
<li><p id="change-0.3.6-11"><span class="target" id="change-0799b08072f174223f5a177a14fe3f19"><strong>[orm] </strong></span>flush fixes on cyclical-referential relationships that contain
1178
references to other instances outside of the cyclical chain, when
1179
some of the objects in the cycle are not actually part of the flush<a class="changeset-link reference internal" href="#change-0799b08072f174223f5a177a14fe3f19">(link)</a><p></p>
1180
</p>
1181
</li>
1182
<li><p id="change-0.3.6-12"><span class="target" id="change-2dd0c0ba2f51627186f0e3ca255e8679"><strong>[orm] </strong></span>put an aggressive check for “flushing object A with a collection of
1183
B’s, but you put a C in the collection” error condition - <strong>even if
1184
C is a subclass of B</strong>, unless B’s mapper loads polymorphically.
1185
Otherwise, the collection will later load a “B” which should be a
1186
“C” (since its not polymorphic) which breaks in bi-directional
1187
relationships (i.e. C has its A, but A’s backref will lazyload it as
1188
a different instance of type “B”) This check is going
1189
to bite some of you who do this without issues, so the error message
1190
will also document a flag “enable_typechecks=False” to disable this
1191
checking. But be aware that bi-directional relationships in
1192
particular become fragile without this check.<a class="changeset-link reference internal" href="#change-2dd0c0ba2f51627186f0e3ca255e8679">(link)</a><p> <a class="reference external" href="http://www.sqlalchemy.org/trac/ticket/500">#500</a></p>
1193
</p>
1194
</li>
1195
</ul>
1196
</div>
1197
<div class="section" id="change-0.3.6-sql">
1198
<h3>sql<a class="headerlink" href="#change-0.3.6-sql" title="Permalink to this headline">¶</a></h3>
1199
<ul class="simple">
1200
<li><p id="change-0.3.6-13"><span class="target" id="change-44ab18885b5fa9a7f599390ae9397c22"><strong>[sql] </strong></span>bindparam() names are now repeatable! specify two
1201
distinct bindparam()s with the same name in a single statement,
1202
and the key will be shared. proper positional/named args translate
1203
at compile time. for the old behavior of “aliasing” bind parameters
1204
with conflicting names, specify “unique=True” - this option is
1205
still used internally for all the auto-genererated (value-based)
1206
bind parameters.<a class="changeset-link reference internal" href="#change-44ab18885b5fa9a7f599390ae9397c22">(link)</a><p></p>
1207
</p>
1208
</li>
1209
<li><p id="change-0.3.6-14"><span class="target" id="change-32d223314680c88fa9ba080f5f3ce580"><strong>[sql] </strong></span>slightly better support for bind params as column clauses, either
1210
via bindparam() or via literal(), i.e. select([literal(‘foo’)])<a class="changeset-link reference internal" href="#change-32d223314680c88fa9ba080f5f3ce580">(link)</a><p></p>
1211
</p>
1212
</li>
1213
<li><p id="change-0.3.6-15"><span class="target" id="change-cb1ef430a2696531f4258c7a228b6cd8"><strong>[sql] </strong></span>MetaData can bind to an engine either via “url” or “engine” kwargs
1214
to constructor, or by using connect() method. BoundMetaData is
1215
identical to MetaData except engine_or_url param is required.
1216
DynamicMetaData is the same and provides thread-local connections be
1217
default.<a class="changeset-link reference internal" href="#change-cb1ef430a2696531f4258c7a228b6cd8">(link)</a><p></p>
1218
</p>
1219
</li>
1220
<li><p id="change-0.3.6-16"><span class="target" id="change-ff3d112668eb0765f0cea567cbea6a17"><strong>[sql] </strong></span>exists() becomes useable as a standalone selectable, not just in a
1221
WHERE clause, i.e. exists([columns], criterion).select()<a class="changeset-link reference internal" href="#change-ff3d112668eb0765f0cea567cbea6a17">(link)</a><p></p>
1222
</p>
1223
</li>
1224
<li><p id="change-0.3.6-17"><span class="target" id="change-f69f079d1a2ab1a6dcbf3d7ad218bba7"><strong>[sql] </strong></span>correlated subqueries work inside of ORDER BY, GROUP BY<a class="changeset-link reference internal" href="#change-f69f079d1a2ab1a6dcbf3d7ad218bba7">(link)</a><p></p>
1225
</p>
1226
</li>
1227
<li><p id="change-0.3.6-18"><span class="target" id="change-2d6765ed8f52d6039f3ff327871651fe"><strong>[sql] </strong></span>fixed function execution with explicit connections, i.e.
1228
conn.execute(func.dosomething())<a class="changeset-link reference internal" href="#change-2d6765ed8f52d6039f3ff327871651fe">(link)</a><p></p>
1229
</p>
1230
</li>
1231
<li><p id="change-0.3.6-19"><span class="target" id="change-a317e39c8ef05de7ec3007795cc6461d"><strong>[sql] </strong></span>use_labels flag on select() wont auto-create labels for literal text
1232
column elements, since we can make no assumptions about the text. to
1233
create labels for literal columns, you can say “somecol AS
1234
somelabel”, or use literal_column(“somecol”).label(“somelabel”)<a class="changeset-link reference internal" href="#change-a317e39c8ef05de7ec3007795cc6461d">(link)</a><p></p>
1235
</p>
1236
</li>
1237
<li><p id="change-0.3.6-20"><span class="target" id="change-e3edeb29a5666be8fcc4ca01511c4215"><strong>[sql] </strong></span>quoting wont occur for literal columns when they are “proxied” into
1238
the column collection for their selectable (is_literal flag is
1239
propagated). literal columns are specified via
1240
literal_column(“somestring”).<a class="changeset-link reference internal" href="#change-e3edeb29a5666be8fcc4ca01511c4215">(link)</a><p></p>
1241
</p>
1242
</li>
1243
<li><p id="change-0.3.6-21"><span class="target" id="change-f7c741c099c30418beeb3e590e129726"><strong>[sql] </strong></span>added “fold_equivalents” boolean argument to Join.select(), which
1244
removes ‘duplicate’ columns from the resulting column clause that
1245
are known to be equivalent based on the join condition. this is of
1246
great usage when constructing subqueries of joins which Postgres
1247
complains about if duplicate column names are present.<a class="changeset-link reference internal" href="#change-f7c741c099c30418beeb3e590e129726">(link)</a><p></p>
1248
</p>
1249
</li>
1250
<li><p id="change-0.3.6-22"><span class="target" id="change-1b52c0cfb8178249dbfa27198e657e37"><strong>[sql] </strong></span>fixed use_alter flag on ForeignKeyConstraint<a class="changeset-link reference internal" href="#change-1b52c0cfb8178249dbfa27198e657e37">(link)</a><p> <a class="reference external" href="http://www.sqlalchemy.org/trac/ticket/503">#503</a></p>
1251
</p>
1252
</li>
1253
<li><p id="change-0.3.6-23"><span class="target" id="change-d6c64a3f6d7c0271de26273d1888c095"><strong>[sql] </strong></span>fixed usage of 2.4-only “reversed” in topological.py<a class="changeset-link reference internal" href="#change-d6c64a3f6d7c0271de26273d1888c095">(link)</a><p> <a class="reference external" href="http://www.sqlalchemy.org/trac/ticket/506">#506</a></p>
1254
</p>
1255
</li>
1256
<li><p id="change-0.3.6-24"><span class="target" id="change-11779379f1cac1ecc01fc15ac543b303"><strong>[sql] </strong></span>for hackers, refactored the “visitor” system of ClauseElement and
1257
SchemaItem so that the traversal of items is controlled by the
1258
ClauseVisitor itself, using the method visitor.traverse(item).
1259
accept_visitor() methods can still be called directly but will not
1260
do any traversal of child items. ClauseElement/SchemaItem now have a
1261
configurable get_children() method to return the collection of child
1262
elements for each parent object. This allows the full traversal of
1263
items to be clear and unambiguous (as well as loggable), with an
1264
easy method of limiting a traversal (just pass flags which are
1265
picked up by appropriate get_children() methods).<a class="changeset-link reference internal" href="#change-11779379f1cac1ecc01fc15ac543b303">(link)</a><p> <a class="reference external" href="http://www.sqlalchemy.org/trac/ticket/501">#501</a></p>
1266
</p>
1267
</li>
1268
<li><p id="change-0.3.6-25"><span class="target" id="change-d0eb64e664c7f936e458f5f319b4fc50"><strong>[sql] </strong></span>the “<a href="#id17"><span class="problematic" id="id18">else_</span></a>” parameter to the case statement now properly works when
1269
set to zero.<a class="changeset-link reference internal" href="#change-d0eb64e664c7f936e458f5f319b4fc50">(link)</a><p></p>
1270
</p>
1271
</li>
1272
</ul>
1273
</div>
1274
<div class="section" id="change-0.3.6-mysql">
1275
<h3>mysql<a class="headerlink" href="#change-0.3.6-mysql" title="Permalink to this headline">¶</a></h3>
1276
<ul class="simple">
1277
<li><p id="change-0.3.6-26"><span class="target" id="change-43de82f16ecdf78ba1849a1f444b2345"><strong>[mysql] </strong></span>added a catchall <a href="#id7"><span class="problematic" id="id8">**</span></a>kwargs to MSString, to help reflection of
1278
obscure types (like “varchar() binary” in MS 4.0)<a class="changeset-link reference internal" href="#change-43de82f16ecdf78ba1849a1f444b2345">(link)</a><p></p>
1279
</p>
1280
</li>
1281
<li><p id="change-0.3.6-27"><span class="target" id="change-1af85a8922781c43c7653e350c30801f"><strong>[mysql] </strong></span>added explicit MSTimeStamp type which takes effect when using
1282
types.TIMESTAMP.<a class="changeset-link reference internal" href="#change-1af85a8922781c43c7653e350c30801f">(link)</a><p></p>
1283
</p>
1284
</li>
1285
</ul>
1286
</div>
1287
<div class="section" id="change-0.3.6-oracle">
1288
<h3>oracle<a class="headerlink" href="#change-0.3.6-oracle" title="Permalink to this headline">¶</a></h3>
1289
<ul class="simple">
1290
<li><p id="change-0.3.6-28"><span class="target" id="change-1de005425b678cd46ecc85ed5837c9c7"><strong>[oracle] </strong></span>got binary working for any size input ! cx_oracle works fine,
1291
it was my fault as BINARY was being passed and not BLOB for
1292
setinputsizes (also unit tests werent even setting input sizes).<a class="changeset-link reference internal" href="#change-1de005425b678cd46ecc85ed5837c9c7">(link)</a><p></p>
1293
</p>
1294
</li>
1295
<li><p id="change-0.3.6-29"><span class="target" id="change-12bd1d4f70a00eb5aa27999038a0d684"><strong>[oracle] </strong></span>also fixed CLOB read/write on a separate changeset.<a class="changeset-link reference internal" href="#change-12bd1d4f70a00eb5aa27999038a0d684">(link)</a><p></p>
1296
</p>
1297
</li>
1298
<li><p id="change-0.3.6-30"><span class="target" id="change-22b00f0def3ec2ee49bb7d7a5b878466"><strong>[oracle] </strong></span>auto_setinputsizes defaults to True for Oracle, fixed cases where
1299
it improperly propagated bad types.<a class="changeset-link reference internal" href="#change-22b00f0def3ec2ee49bb7d7a5b878466">(link)</a><p></p>
1300
</p>
1301
</li>
1302
</ul>
1303
</div>
1304
<div class="section" id="change-0.3.6-misc">
1305
<h3>misc<a class="headerlink" href="#change-0.3.6-misc" title="Permalink to this headline">¶</a></h3>
1306
<ul class="simple">
1307
<li><p id="change-0.3.6-31"><span class="target" id="change-898f3d31d769657a997316a0a2a1b0ac"><strong>[extensions] </strong></span>options() method on SelectResults now implemented “generatively”
1308
like the rest of the SelectResults methods. But
1309
you’re going to just use Query now anyway.<a class="changeset-link reference internal" href="#change-898f3d31d769657a997316a0a2a1b0ac">(link)</a><p> <a class="reference external" href="http://www.sqlalchemy.org/trac/ticket/472">#472</a></p>
1310
</p>
1311
</li>
1312
<li><p id="change-0.3.6-32"><span class="target" id="change-1eab2a69f89dd1f24faab811e0b58da3"><strong>[extensions] </strong></span>query() method is added by assignmapper. this helps with
1313
navigating to all the new generative methods on Query.<a class="changeset-link reference internal" href="#change-1eab2a69f89dd1f24faab811e0b58da3">(link)</a><p></p>
1314
</p>
1315
</li>
1316
<li><p id="change-0.3.6-33"><span class="target" id="change-b87c523c857426c8d8b677b3058f15b5"><strong>[ms-sql] </strong></span><dl class="docutils">
1317
<dt>removed seconds input on DATE column types (probably</dt>
1318
<dd>should remove the time altogether)</dd>
1319
</dl>
1320
<a class="changeset-link reference internal" href="#change-b87c523c857426c8d8b677b3058f15b5">(link)</a><p></p>
1321
</p>
1322
</li>
1323
<li><p id="change-0.3.6-34"><span class="target" id="change-77ff33ca3510c4330712ef7ecea18a8d"><strong>[ms-sql] </strong></span>null values in float fields no longer raise errors<a class="changeset-link reference internal" href="#change-77ff33ca3510c4330712ef7ecea18a8d">(link)</a><p></p>
1324
</p>
1325
</li>
1326
<li><p id="change-0.3.6-35"><span class="target" id="change-542131c8c49c9372085c52a8c0cb56db"><strong>[ms-sql] </strong></span>LIMIT with OFFSET now raises an error (MS-SQL has no OFFSET support)<a class="changeset-link reference internal" href="#change-542131c8c49c9372085c52a8c0cb56db">(link)</a><p></p>
1327
</p>
1328
</li>
1329
<li><p id="change-0.3.6-36"><span class="target" id="change-92fb4300cf566200775defe777003a51"><strong>[ms-sql] </strong></span>added an facility to use the MSSQL type VARCHAR(max) instead of TEXT
1330
for large unsized string fields. Use the new “text_as_varchar” to
1331
turn it on.<a class="changeset-link reference internal" href="#change-92fb4300cf566200775defe777003a51">(link)</a><p> <a class="reference external" href="http://www.sqlalchemy.org/trac/ticket/509">#509</a></p>
1332
</p>
1333
</li>
1334
<li><p id="change-0.3.6-37"><span class="target" id="change-91f921f0eaffcbb7dcbb4e655c3787de"><strong>[ms-sql] </strong></span>ORDER BY clauses without a LIMIT are now stripped in subqueries, as
1335
MS-SQL forbids this usage<a class="changeset-link reference internal" href="#change-91f921f0eaffcbb7dcbb4e655c3787de">(link)</a><p></p>
1336
</p>
1337
</li>
1338
<li><p id="change-0.3.6-38"><span class="target" id="change-4ac23e6c9087d3b35a82c00543826730"><strong>[ms-sql] </strong></span>cleanup of module importing code; specifiable DB-API module; more
1339
explicit ordering of module preferences.<a class="changeset-link reference internal" href="#change-4ac23e6c9087d3b35a82c00543826730">(link)</a><p> <a class="reference external" href="http://www.sqlalchemy.org/trac/ticket/480">#480</a></p>
1340
</p>
1341
</li>
1342
</ul>
1343
</div>
1344
</div>
1345
<div class="section" id="change-0.3.5">
1346
<h2>0.3.5<a class="headerlink" href="#change-0.3.5" title="Permalink to this headline">¶</a></h2>
1347
Released: Thu Feb 22 2007<div class="section" id="change-0.3.5-orm">
1348
<h3>orm<a class="headerlink" href="#change-0.3.5-orm" title="Permalink to this headline">¶</a></h3>
1349
<ul class="simple">
1350
<li><p id="change-0.3.5-0"><span class="target" id="change-8632b00faff5848753f92a330f517c03"><strong>[orm] [bugs] </strong></span>another refactoring to relationship calculation. Allows more accurate
1351
ORM behavior with relationships from/to/between mappers, particularly
1352
polymorphic mappers, also their usage with Query, SelectResults. tickets
1353
include,,.<a class="changeset-link reference internal" href="#change-8632b00faff5848753f92a330f517c03">(link)</a><p> <a class="reference external" href="http://www.sqlalchemy.org/trac/ticket/441">#441</a>, <a class="reference external" href="http://www.sqlalchemy.org/trac/ticket/448">#448</a>, <a class="reference external" href="http://www.sqlalchemy.org/trac/ticket/439">#439</a></p>
1354
</p>
1355
</li>
1356
<li><p id="change-0.3.5-1"><span class="target" id="change-420a8dde82328a1c84d68b07f0f008e2"><strong>[orm] [bugs] </strong></span>removed deprecated method of specifying custom collections on classes;
1357
you must now use the “collection_class” option. the old way was
1358
beginning to produce conflicts when people used assign_mapper(), which
1359
now patches an “options” method, in conjunction with a relationship
1360
named “options”. (relationships take precedence over monkeypatched
1361
assign_mapper methods).<a class="changeset-link reference internal" href="#change-420a8dde82328a1c84d68b07f0f008e2">(link)</a><p></p>
1362
</p>
1363
</li>
1364
<li><p id="change-0.3.5-2"><span class="target" id="change-b4ea85a697ce2e8a5476e0447b77ccf5"><strong>[orm] [bugs] </strong></span>extension() query option propagates to Mapper._instance() method so that
1365
all loading-related methods get called<a class="changeset-link reference internal" href="#change-b4ea85a697ce2e8a5476e0447b77ccf5">(link)</a><p> <a class="reference external" href="http://www.sqlalchemy.org/trac/ticket/454">#454</a></p>
1366
</p>
1367
</li>
1368
<li><p id="change-0.3.5-3"><span class="target" id="change-a75844e9e51b998af08e42d79b17d007"><strong>[orm] [bugs] </strong></span>eager relation to an inheriting mapper wont fail if no rows returned for
1369
the relationship.<a class="changeset-link reference internal" href="#change-a75844e9e51b998af08e42d79b17d007">(link)</a><p></p>
1370
</p>
1371
</li>
1372
<li><p id="change-0.3.5-4"><span class="target" id="change-ac80398579a4fcbae21783cc62160e08"><strong>[orm] [bugs] </strong></span>eager relation loading bug fixed for eager relation on multiple
1373
descendant classes<a class="changeset-link reference internal" href="#change-ac80398579a4fcbae21783cc62160e08">(link)</a><p> <a class="reference external" href="http://www.sqlalchemy.org/trac/ticket/486">#486</a></p>
1374
</p>
1375
</li>
1376
<li><p id="change-0.3.5-5"><span class="target" id="change-c165d9646437c3f933401899647483cb"><strong>[orm] [bugs] </strong></span>fix for very large topological sorts, courtesy ants.aasma at gmail<a class="changeset-link reference internal" href="#change-c165d9646437c3f933401899647483cb">(link)</a><p> <a class="reference external" href="http://www.sqlalchemy.org/trac/ticket/423">#423</a></p>
1377
</p>
1378
</li>
1379
<li><p id="change-0.3.5-6"><span class="target" id="change-39ce034d909d6179f0e57da79c888648"><strong>[orm] [bugs] </strong></span>eager loading is slightly more strict about detecting “self-referential”
1380
relationships, specifically between polymorphic mappers. this results in
1381
an “eager degrade” to lazy loading.<a class="changeset-link reference internal" href="#change-39ce034d909d6179f0e57da79c888648">(link)</a><p></p>
1382
</p>
1383
</li>
1384
<li><p id="change-0.3.5-7"><span class="target" id="change-77cfca11a557e706eafddf5289843a1a"><strong>[orm] [bugs] </strong></span>improved support for complex queries embedded into “where” criterion for
1385
query.select()<a class="changeset-link reference internal" href="#change-77cfca11a557e706eafddf5289843a1a">(link)</a><p> <a class="reference external" href="http://www.sqlalchemy.org/trac/ticket/449">#449</a></p>
1386
</p>
1387
</li>
1388
<li><p id="change-0.3.5-8"><span class="target" id="change-a86a3aad19cf61adc26984764ce96a8b"><strong>[orm] [bugs] </strong></span>mapper options like eagerload(), lazyload(), deferred(), will work for
1389
“synonym()” relationships<a class="changeset-link reference internal" href="#change-a86a3aad19cf61adc26984764ce96a8b">(link)</a><p> <a class="reference external" href="http://www.sqlalchemy.org/trac/ticket/485">#485</a></p>
1390
</p>
1391
</li>
1392
<li><p id="change-0.3.5-9"><span class="target" id="change-b8e4711961e2f380e6a7714230498042"><strong>[orm] [bugs] </strong></span>fixed bug where cascade operations incorrectly included deleted
1393
collection items in the cascade<a class="changeset-link reference internal" href="#change-b8e4711961e2f380e6a7714230498042">(link)</a><p> <a class="reference external" href="http://www.sqlalchemy.org/trac/ticket/445">#445</a></p>
1394
</p>
1395
</li>
1396
<li><p id="change-0.3.5-10"><span class="target" id="change-22e5b7ae7b767a70ea7e0f53ad7e8248"><strong>[orm] [bugs] </strong></span>fixed relationship deletion error when one-to-many child item is moved
1397
to a new parent in a single unit of work<a class="changeset-link reference internal" href="#change-22e5b7ae7b767a70ea7e0f53ad7e8248">(link)</a><p> <a class="reference external" href="http://www.sqlalchemy.org/trac/ticket/478">#478</a></p>
1398
</p>
1399
</li>
1400
<li><p id="change-0.3.5-11"><span class="target" id="change-226133d12414c7bceb0d870564d2db9e"><strong>[orm] [bugs] </strong></span>fixed relationship deletion error where parent/child with a single
1401
column as PK/FK on the child would raise a “blank out the primary key”
1402
error, if manually deleted or “delete” cascade without “delete-orphan”
1403
was used<a class="changeset-link reference internal" href="#change-226133d12414c7bceb0d870564d2db9e">(link)</a><p></p>
1404
</p>
1405
</li>
1406
<li><p id="change-0.3.5-12"><span class="target" id="change-6d909d1f169be682d0134530ffe305f4"><strong>[orm] [bugs] </strong></span>fix to deferred so that load operation doesnt mistakenly occur when only
1407
PK col attributes are set<a class="changeset-link reference internal" href="#change-6d909d1f169be682d0134530ffe305f4">(link)</a><p></p>
1408
</p>
1409
</li>
1410
<li><p id="change-0.3.5-13"><span class="target" id="change-6c4ac23619895aa1814ccc031d40da8a"><strong>[orm] [enhancements] </strong></span>implemented foreign_keys argument to mapper. use in
1411
conjunction with primaryjoin/secondaryjoin arguments to specify/override
1412
foreign keys defined on the Table instance.<a class="changeset-link reference internal" href="#change-6c4ac23619895aa1814ccc031d40da8a">(link)</a><p> <a class="reference external" href="http://www.sqlalchemy.org/trac/ticket/385">#385</a></p>
1413
</p>
1414
</li>
1415
<li><p id="change-0.3.5-14"><span class="target" id="change-0755a972913cdf4f3d3ea28113aad132"><strong>[orm] [enhancements] </strong></span>contains_eager(‘foo’) automatically implies eagerload(‘foo’)<a class="changeset-link reference internal" href="#change-0755a972913cdf4f3d3ea28113aad132">(link)</a><p></p>
1416
</p>
1417
</li>
1418
<li><p id="change-0.3.5-15"><span class="target" id="change-9559eca8c71abf14afd98ee3ccfd4f01"><strong>[orm] [enhancements] </strong></span>added “alias” argument to contains_eager(). use it to specify the string
1419
name or Alias instance of an alias used in the query for the eagerly
1420
loaded child items. easier to use than “decorator”<a class="changeset-link reference internal" href="#change-9559eca8c71abf14afd98ee3ccfd4f01">(link)</a><p></p>
1421
</p>
1422
</li>
1423
<li><p id="change-0.3.5-16"><span class="target" id="change-290a67bd31b7240bb829d5f3a1a8b913"><strong>[orm] [enhancements] </strong></span>added “contains_alias()” option for result set mapping to an alias of
1424
the mapped table<a class="changeset-link reference internal" href="#change-290a67bd31b7240bb829d5f3a1a8b913">(link)</a><p></p>
1425
</p>
1426
</li>
1427
<li><p id="change-0.3.5-17"><span class="target" id="change-4df85d62086609340f9ec07957b97137"><strong>[orm] [enhancements] </strong></span>added support for py2.5 “with” statement with SessionTransaction<a class="changeset-link reference internal" href="#change-4df85d62086609340f9ec07957b97137">(link)</a><p> <a class="reference external" href="http://www.sqlalchemy.org/trac/ticket/468">#468</a></p>
1428
</p>
1429
</li>
1430
</ul>
1431
</div>
1432
<div class="section" id="change-0.3.5-sql">
1433
<h3>sql<a class="headerlink" href="#change-0.3.5-sql" title="Permalink to this headline">¶</a></h3>
1434
<ul class="simple">
1435
<li><p id="change-0.3.5-18"><span class="target" id="change-0fe6675045936336cf076722fc9f4258"><strong>[sql] </strong></span>the value of “case_sensitive” defaults to True now, regardless of the
1436
casing of the identifier, unless specifically set to False. this is
1437
because the object might be label’ed as something else which does
1438
contain mixed case, and propigating “case_sensitive=False” breaks that.
1439
Other fixes to quoting when using labels and “fake” column objects<a class="changeset-link reference internal" href="#change-0fe6675045936336cf076722fc9f4258">(link)</a><p></p>
1440
</p>
1441
</li>
1442
<li><p id="change-0.3.5-19"><span class="target" id="change-6c984550b02caf3742ce38d0ea98e80f"><strong>[sql] </strong></span>added a “supports_execution()” method to ClauseElement, so that
1443
individual kinds of clauses can express if they are appropriate for
1444
executing...such as, you can execute a “select”, but not a “Table” or a
1445
“Join”.<a class="changeset-link reference internal" href="#change-6c984550b02caf3742ce38d0ea98e80f">(link)</a><p></p>
1446
</p>
1447
</li>
1448
<li><p id="change-0.3.5-20"><span class="target" id="change-9b9ffe3d4441e568d85ecf8bf0a912dd"><strong>[sql] </strong></span>fixed argument passing to straight textual execute() on engine,
1449
connection. can handle <a href="#id9"><span class="problematic" id="id10">*</span></a>args or a list instance for positional, <a href="#id11"><span class="problematic" id="id12">**</span></a>kwargs
1450
or a dict instance for named args, or a list of list or dicts to invoke
1451
executemany()<a class="changeset-link reference internal" href="#change-9b9ffe3d4441e568d85ecf8bf0a912dd">(link)</a><p></p>
1452
</p>
1453
</li>
1454
<li><p id="change-0.3.5-21"><span class="target" id="change-799305b1c45d8b2c0b35daf24d651579"><strong>[sql] </strong></span>small fix to BoundMetaData to accept unicode or string URLs<a class="changeset-link reference internal" href="#change-799305b1c45d8b2c0b35daf24d651579">(link)</a><p></p>
1455
</p>
1456
</li>
1457
<li><p id="change-0.3.5-22"><span class="target" id="change-098b0d8af7d1d8c4ac68ce0f0d1ab760"><strong>[sql] </strong></span>fixed named PrimaryKeyConstraint generation courtesy
1458
andrija at gmail<a class="changeset-link reference internal" href="#change-098b0d8af7d1d8c4ac68ce0f0d1ab760">(link)</a><p> <a class="reference external" href="http://www.sqlalchemy.org/trac/ticket/466">#466</a></p>
1459
</p>
1460
</li>
1461
<li><p id="change-0.3.5-23"><span class="target" id="change-70b974d0c4113b161566331bfc78053f"><strong>[sql] </strong></span>fixed generation of CHECK constraints on columns<a class="changeset-link reference internal" href="#change-70b974d0c4113b161566331bfc78053f">(link)</a><p> <a class="reference external" href="http://www.sqlalchemy.org/trac/ticket/464">#464</a></p>
1462
</p>
1463
</li>
1464
<li><p id="change-0.3.5-24"><span class="target" id="change-d49ca559d4c734d1aaa61ba5a98e8a44"><strong>[sql] </strong></span>fixes to tometadata() operation to propagate Constraints at column and
1465
table level<a class="changeset-link reference internal" href="#change-d49ca559d4c734d1aaa61ba5a98e8a44">(link)</a><p></p>
1466
</p>
1467
</li>
1468
</ul>
1469
</div>
1470
<div class="section" id="change-0.3.5-mysql">
1471
<h3>mysql<a class="headerlink" href="#change-0.3.5-mysql" title="Permalink to this headline">¶</a></h3>
1472
<ul class="simple">
1473
<li><p id="change-0.3.5-25"><span class="target" id="change-23cbc502382175b57e3d21030a2373c2"><strong>[mysql] </strong></span>fix to reflection on older DB’s that might return array() type for
1474
“show variables like” statements<a class="changeset-link reference internal" href="#change-23cbc502382175b57e3d21030a2373c2">(link)</a><p></p>
1475
</p>
1476
</li>
1477
</ul>
1478
</div>
1479
<div class="section" id="change-0.3.5-mssql">
1480
<h3>mssql<a class="headerlink" href="#change-0.3.5-mssql" title="Permalink to this headline">¶</a></h3>
1481
<ul class="simple">
1482
<li><p id="change-0.3.5-26"><span class="target" id="change-2c2ff52404aa9423f3b197ef8d064c57"><strong>[mssql] </strong></span>preliminary support for pyodbc (Yay!)<a class="changeset-link reference internal" href="#change-2c2ff52404aa9423f3b197ef8d064c57">(link)</a><p> <a class="reference external" href="http://www.sqlalchemy.org/trac/ticket/419">#419</a></p>
1483
</p>
1484
</li>
1485
<li><p id="change-0.3.5-27"><span class="target" id="change-7e0d0b6aa2b56dd8a2643a2a996c1ce6"><strong>[mssql] </strong></span>better support for NVARCHAR types added<a class="changeset-link reference internal" href="#change-7e0d0b6aa2b56dd8a2643a2a996c1ce6">(link)</a><p> <a class="reference external" href="http://www.sqlalchemy.org/trac/ticket/298">#298</a></p>
1486
</p>
1487
</li>
1488
<li><p id="change-0.3.5-28"><span class="target" id="change-5456de0e05ace2611637223ef9c3b1a3"><strong>[mssql] </strong></span>fix for commit logic on pymssql<a class="changeset-link reference internal" href="#change-5456de0e05ace2611637223ef9c3b1a3">(link)</a><p></p>
1489
</p>
1490
</li>
1491
<li><p id="change-0.3.5-29"><span class="target" id="change-dd705f65a8f579d9f21e357b630ce0e1"><strong>[mssql] </strong></span>fix for query.get() with schema<a class="changeset-link reference internal" href="#change-dd705f65a8f579d9f21e357b630ce0e1">(link)</a><p> <a class="reference external" href="http://www.sqlalchemy.org/trac/ticket/456">#456</a></p>
1492
</p>
1493
</li>
1494
<li><p id="change-0.3.5-30"><span class="target" id="change-911cdebc2d34a378435f400bf0cf630e"><strong>[mssql] </strong></span>fix for non-integer relationships<a class="changeset-link reference internal" href="#change-911cdebc2d34a378435f400bf0cf630e">(link)</a><p> <a class="reference external" href="http://www.sqlalchemy.org/trac/ticket/473">#473</a></p>
1495
</p>
1496
</li>
1497
<li><p id="change-0.3.5-31"><span class="target" id="change-539d4ad681f7456880dabe1620b68588"><strong>[mssql] </strong></span>DB-API module now selectable at run-time<a class="changeset-link reference internal" href="#change-539d4ad681f7456880dabe1620b68588">(link)</a><p> <a class="reference external" href="http://www.sqlalchemy.org/trac/ticket/419">#419</a></p>
1498
</p>
1499
</li>
1500
<li><p id="change-0.3.5-32"><span class="target" id="change-59dc7293d796646a217909587ba56fb7"><strong>[mssql] [415] [tickets:422] [481] </strong></span>now passes many more unit tests<a class="changeset-link reference internal" href="#change-59dc7293d796646a217909587ba56fb7">(link)</a><p></p>
1501
</p>
1502
</li>
1503
<li><p id="change-0.3.5-33"><span class="target" id="change-9f0b045815840276afd66940cbba759c"><strong>[mssql] </strong></span>better unittest compatibility with ANSI functions<a class="changeset-link reference internal" href="#change-9f0b045815840276afd66940cbba759c">(link)</a><p> <a class="reference external" href="http://www.sqlalchemy.org/trac/ticket/479">#479</a></p>
1504
</p>
1505
</li>
1506
<li><p id="change-0.3.5-34"><span class="target" id="change-381a1076dd1ae05a9d9d968cdf1c5bc9"><strong>[mssql] </strong></span>improved support for implicit sequence PK columns with auto-insert<a class="changeset-link reference internal" href="#change-381a1076dd1ae05a9d9d968cdf1c5bc9">(link)</a><p> <a class="reference external" href="http://www.sqlalchemy.org/trac/ticket/415">#415</a></p>
1507
</p>
1508
</li>
1509
<li><p id="change-0.3.5-35"><span class="target" id="change-dcdda808c45d24c958d8be769f83003f"><strong>[mssql] </strong></span>fix for blank password in adodbapi<a class="changeset-link reference internal" href="#change-dcdda808c45d24c958d8be769f83003f">(link)</a><p> <a class="reference external" href="http://www.sqlalchemy.org/trac/ticket/371">#371</a></p>
1510
</p>
1511
</li>
1512
<li><p id="change-0.3.5-36"><span class="target" id="change-1075fe6db448bd584e19ab492e5f8c5c"><strong>[mssql] </strong></span>fixes to get unit tests working with pyodbc<a class="changeset-link reference internal" href="#change-1075fe6db448bd584e19ab492e5f8c5c">(link)</a><p> <a class="reference external" href="http://www.sqlalchemy.org/trac/ticket/481">#481</a></p>
1513
</p>
1514
</li>
1515
<li><p id="change-0.3.5-37"><span class="target" id="change-5bdb627a7d2ed7ec5bc84c7ebf111216"><strong>[mssql] </strong></span>fix to auto_identity_insert on db-url query<a class="changeset-link reference internal" href="#change-5bdb627a7d2ed7ec5bc84c7ebf111216">(link)</a><p></p>
1516
</p>
1517
</li>
1518
<li><p id="change-0.3.5-38"><span class="target" id="change-b8f7e80d560caa5ae3aec32c6e922ef6"><strong>[mssql] </strong></span>added query_timeout to db-url query parms. currently works only for
1519
pymssql<a class="changeset-link reference internal" href="#change-b8f7e80d560caa5ae3aec32c6e922ef6">(link)</a><p></p>
1520
</p>
1521
</li>
1522
<li><p id="change-0.3.5-39"><span class="target" id="change-2cea7ef341a84d5cc0ea53fd071ce1af"><strong>[mssql] </strong></span>tested with pymssql 0.8.0 (which is now LGPL)<a class="changeset-link reference internal" href="#change-2cea7ef341a84d5cc0ea53fd071ce1af">(link)</a><p></p>
1523
</p>
1524
</li>
1525
</ul>
1526
</div>
1527
<div class="section" id="change-0.3.5-oracle">
1528
<h3>oracle<a class="headerlink" href="#change-0.3.5-oracle" title="Permalink to this headline">¶</a></h3>
1529
<ul class="simple">
1530
<li><p id="change-0.3.5-40"><span class="target" id="change-f2964e13050167fa913d5346579ed93a"><strong>[oracle] </strong></span>when returning “rowid” as the ORDER BY column or in use with ROW_NUMBER
1531
OVER, oracle dialect checks the selectable its being applied to and will
1532
switch to table PK if not applicable, i.e. for a UNION. checking for
1533
DISTINCT, GROUP BY (other places that rowid is invalid) still a TODO.
1534
allows polymorphic mappings to function.<a class="changeset-link reference internal" href="#change-f2964e13050167fa913d5346579ed93a">(link)</a><p> <a class="reference external" href="http://www.sqlalchemy.org/trac/ticket/436">#436</a></p>
1535
</p>
1536
</li>
1537
<li><p id="change-0.3.5-41"><span class="target" id="change-997cdb0c8e4db76469d84ce1e36ff870"><strong>[oracle] </strong></span>sequences on a non-pk column will properly fire off on INSERT<a class="changeset-link reference internal" href="#change-997cdb0c8e4db76469d84ce1e36ff870">(link)</a><p></p>
1538
</p>
1539
</li>
1540
<li><p id="change-0.3.5-42"><span class="target" id="change-41b33afb60cf82b8b6a4a0bb859562bf"><strong>[oracle] </strong></span>added PrefetchingResultProxy support to pre-fetch LOB columns when they
1541
are known to be present, fixes<a class="changeset-link reference internal" href="#change-41b33afb60cf82b8b6a4a0bb859562bf">(link)</a><p> <a class="reference external" href="http://www.sqlalchemy.org/trac/ticket/435">#435</a></p>
1542
</p>
1543
</li>
1544
<li><p id="change-0.3.5-43"><span class="target" id="change-a87a4c61e30aa01276449a37779f7083"><strong>[oracle] </strong></span>implemented reflection of tables based on synonyms, including across
1545
dblinks<a class="changeset-link reference internal" href="#change-a87a4c61e30aa01276449a37779f7083">(link)</a><p> <a class="reference external" href="http://www.sqlalchemy.org/trac/ticket/379">#379</a></p>
1546
</p>
1547
</li>
1548
<li><p id="change-0.3.5-44"><span class="target" id="change-b8639b7a31e537e7f11dcd8f241550b6"><strong>[oracle] </strong></span>issues a log warning when a related table cant be reflected due to
1549
certain permission errors<a class="changeset-link reference internal" href="#change-b8639b7a31e537e7f11dcd8f241550b6">(link)</a><p> <a class="reference external" href="http://www.sqlalchemy.org/trac/ticket/363">#363</a></p>
1550
</p>
1551
</li>
1552
</ul>
1553
</div>
1554
<div class="section" id="change-0.3.5-misc">
1555
<h3>misc<a class="headerlink" href="#change-0.3.5-misc" title="Permalink to this headline">¶</a></h3>
1556
<ul class="simple">
1557
<li><p id="change-0.3.5-45"><span class="target" id="change-cc97a0bde59a0e25d2d0180cee1209a0"><strong>[postgres] </strong></span>better reflection of sequences for alternate-schema Tables<a class="changeset-link reference internal" href="#change-cc97a0bde59a0e25d2d0180cee1209a0">(link)</a><p> <a class="reference external" href="http://www.sqlalchemy.org/trac/ticket/442">#442</a></p>
1558
</p>
1559
</li>
1560
<li><p id="change-0.3.5-46"><span class="target" id="change-997cdb0c8e4db76469d84ce1e36ff870"><strong>[postgres] </strong></span>sequences on a non-pk column will properly fire off on INSERT<a class="changeset-link reference internal" href="#change-997cdb0c8e4db76469d84ce1e36ff870">(link)</a><p></p>
1561
</p>
1562
</li>
1563
<li><p id="change-0.3.5-47"><span class="target" id="change-848a61af4172ae1b5f0fc0247de36987"><strong>[postgres] </strong></span>added PGInterval type, PGInet type<a class="changeset-link reference internal" href="#change-848a61af4172ae1b5f0fc0247de36987">(link)</a><p> <a class="reference external" href="http://www.sqlalchemy.org/trac/ticket/460">#460</a>, <a class="reference external" href="http://www.sqlalchemy.org/trac/ticket/444">#444</a></p>
1564
</p>
1565
</li>
1566
<li><p id="change-0.3.5-48"><span class="target" id="change-bd2bb531eaffdeab9654a4cd07ef2c2b"><strong>[extensions] </strong></span>added distinct() method to SelectResults. generally should only make a
1567
difference when using count().<a class="changeset-link reference internal" href="#change-bd2bb531eaffdeab9654a4cd07ef2c2b">(link)</a><p></p>
1568
</p>
1569
</li>
1570
<li><p id="change-0.3.5-49"><span class="target" id="change-e49cd2a7ca945f2421ae6902f52f8f37"><strong>[extensions] </strong></span>added options() method to SelectResults, equivalent to query.options()<a class="changeset-link reference internal" href="#change-e49cd2a7ca945f2421ae6902f52f8f37">(link)</a><p> <a class="reference external" href="http://www.sqlalchemy.org/trac/ticket/472">#472</a></p>
1571
</p>
1572
</li>
1573
<li><p id="change-0.3.5-50"><span class="target" id="change-cdde06072236d420f2b8e3603362354e"><strong>[extensions] </strong></span>added optional __table_opts__ dictionary to ActiveMapper, will send kw
1574
options to Table objects<a class="changeset-link reference internal" href="#change-cdde06072236d420f2b8e3603362354e">(link)</a><p> <a class="reference external" href="http://www.sqlalchemy.org/trac/ticket/462">#462</a></p>
1575
</p>
1576
</li>
1577
<li><p id="change-0.3.5-51"><span class="target" id="change-a43a8ee036b96770b37d4e02ab37b4c0"><strong>[extensions] </strong></span>added selectfirst(), selectfirst_by() to assign_mapper<a class="changeset-link reference internal" href="#change-a43a8ee036b96770b37d4e02ab37b4c0">(link)</a><p> <a class="reference external" href="http://www.sqlalchemy.org/trac/ticket/467">#467</a></p>
1578
</p>
1579
</li>
1580
</ul>
1581
</div>
1582
</div>
1583
<div class="section" id="change-0.3.4">
1584
<h2>0.3.4<a class="headerlink" href="#change-0.3.4" title="Permalink to this headline">¶</a></h2>
1585
Released: Tue Jan 23 2007<div class="section" id="change-0.3.4-general">
1586
<h3>general<a class="headerlink" href="#change-0.3.4-general" title="Permalink to this headline">¶</a></h3>
1587
<ul class="simple">
1588
<li><p id="change-0.3.4-0"><span class="target" id="change-ea7ee482db28ede59ac4bcfe7508bb68"><strong>[general] </strong></span>global “insure”->”ensure” change. in US english “insure” is actually
1589
largely interchangeable with “ensure” (so says the dictionary), so I’m not
1590
completely illiterate, but its definitely sub-optimal to “ensure” which is
1591
non-ambiguous.<a class="changeset-link reference internal" href="#change-ea7ee482db28ede59ac4bcfe7508bb68">(link)</a><p></p>
1592
</p>
1593
</li>
1594
</ul>
1595
</div>
1596
<div class="section" id="change-0.3.4-orm">
1597
<h3>orm<a class="headerlink" href="#change-0.3.4-orm" title="Permalink to this headline">¶</a></h3>
1598
<ul class="simple">
1599
<li><p id="change-0.3.4-1"><span class="target" id="change-3d028e23313c343b88f683148079f6d8"><strong>[orm] </strong></span>poked the first hole in the can of worms: saying
1600
query.select_by(somerelationname=someinstance) will create the join of the
1601
primary key columns represented by “somerelationname“‘s mapper to the
1602
actual primary key in “someinstance”.<a class="changeset-link reference internal" href="#change-3d028e23313c343b88f683148079f6d8">(link)</a><p></p>
1603
</p>
1604
</li>
1605
<li><p id="change-0.3.4-2"><span class="target" id="change-5601e1cae87763b3397a1dff4dc3479c"><strong>[orm] </strong></span>reworked how relations interact with “polymorphic” mappers, i.e. mappers
1606
that have a select_table as well as polymorphic flags. better determination
1607
of proper join conditions, interaction with user- defined join conditions,
1608
and support for self-referential polymorphic mappers.<a class="changeset-link reference internal" href="#change-5601e1cae87763b3397a1dff4dc3479c">(link)</a><p></p>
1609
</p>
1610
</li>
1611
<li><p id="change-0.3.4-3"><span class="target" id="change-77a27e5fc8a0403c05553cd6268b57ce"><strong>[orm] </strong></span>related to polymorphic mapping relations, some deeper error checking when
1612
compiling relations, to detect an ambiguous “primaryjoin” in the case that
1613
both sides of the relationship have foreign key references in the primary
1614
join condition. also tightened down conditions used to locate “relation
1615
direction”, associating the “foreignkey” of the relationship with the
1616
“primaryjoin”<a class="changeset-link reference internal" href="#change-77a27e5fc8a0403c05553cd6268b57ce">(link)</a><p></p>
1617
</p>
1618
</li>
1619
<li><p id="change-0.3.4-4"><span class="target" id="change-b68e439ba854a97afc57d071074809ec"><strong>[orm] </strong></span>a little bit of improvement to the concept of a “concrete” inheritance
1620
mapping, though that concept is not well fleshed out yet (added test case
1621
to support concrete mappers on top of a polymorphic base).<a class="changeset-link reference internal" href="#change-b68e439ba854a97afc57d071074809ec">(link)</a><p></p>
1622
</p>
1623
</li>
1624
<li><p id="change-0.3.4-5"><span class="target" id="change-fc43ebe81ca938a541f0089c23bfb7a8"><strong>[orm] </strong></span>fix to “proxy=True” behavior on synonym()<a class="changeset-link reference internal" href="#change-fc43ebe81ca938a541f0089c23bfb7a8">(link)</a><p></p>
1625
</p>
1626
</li>
1627
<li><p id="change-0.3.4-6"><span class="target" id="change-351dd3d3f2b53af4c434ce66c226cef5"><strong>[orm] </strong></span>fixed bug where delete-orphan basically didn’t work with many-to-many
1628
relationships, backref presence generally hid the symptom<a class="changeset-link reference internal" href="#change-351dd3d3f2b53af4c434ce66c226cef5">(link)</a><p> <a class="reference external" href="http://www.sqlalchemy.org/trac/ticket/427">#427</a></p>
1629
</p>
1630
</li>
1631
<li><p id="change-0.3.4-7"><span class="target" id="change-231c94f2c6414edd8ef94f7de383d349"><strong>[orm] </strong></span>added a mutex to the mapper compilation step. ive been reluctant to add any
1632
kind of threading anything to SA but this is one spot that its really
1633
needed since mappers are typically “global”, and while their state does not
1634
change during normal operation, the initial compilation step does modify
1635
internal state significantly, and this step usually occurs not at
1636
module-level initialization time (unless you call compile()) but at
1637
first-request time<a class="changeset-link reference internal" href="#change-231c94f2c6414edd8ef94f7de383d349">(link)</a><p></p>
1638
</p>
1639
</li>
1640
<li><p id="change-0.3.4-8"><span class="target" id="change-40191965cf8a1fffbd5f3f7c476c442e"><strong>[orm] </strong></span>basic idea of “session.merge()” actually implemented. needs more testing.<a class="changeset-link reference internal" href="#change-40191965cf8a1fffbd5f3f7c476c442e">(link)</a><p></p>
1641
</p>
1642
</li>
1643
<li><p id="change-0.3.4-9"><span class="target" id="change-1fcc21636195b3b7a6c4751ded7aacc7"><strong>[orm] </strong></span>added “compile_mappers()” function as a shortcut to compiling all mappers<a class="changeset-link reference internal" href="#change-1fcc21636195b3b7a6c4751ded7aacc7">(link)</a><p></p>
1644
</p>
1645
</li>
1646
<li><p id="change-0.3.4-10"><span class="target" id="change-a564633ea1853007aeaac37573a81ee6"><strong>[orm] </strong></span>fix to MapperExtension create_instance so that entity_name properly
1647
associated with new instance<a class="changeset-link reference internal" href="#change-a564633ea1853007aeaac37573a81ee6">(link)</a><p></p>
1648
</p>
1649
</li>
1650
<li><p id="change-0.3.4-11"><span class="target" id="change-9eccc99856ce597d36eae3266f7614b6"><strong>[orm] </strong></span>speed enhancements to ORM object instantiation, eager loading of rows<a class="changeset-link reference internal" href="#change-9eccc99856ce597d36eae3266f7614b6">(link)</a><p></p>
1651
</p>
1652
</li>
1653
<li><p id="change-0.3.4-12"><span class="target" id="change-dd4031a82befed9119e377543328f8c0"><strong>[orm] </strong></span>invalid options sent to ‘cascade’ string will raise an exception<a class="changeset-link reference internal" href="#change-dd4031a82befed9119e377543328f8c0">(link)</a><p> <a class="reference external" href="http://www.sqlalchemy.org/trac/ticket/406">#406</a></p>
1654
</p>
1655
</li>
1656
<li><p id="change-0.3.4-13"><span class="target" id="change-4ede84bba68610b55d29986d10fe0d62"><strong>[orm] </strong></span>fixed bug in mapper refresh/expire whereby eager loaders didnt properly
1657
re-populate item lists<a class="changeset-link reference internal" href="#change-4ede84bba68610b55d29986d10fe0d62">(link)</a><p> <a class="reference external" href="http://www.sqlalchemy.org/trac/ticket/407">#407</a></p>
1658
</p>
1659
</li>
1660
<li><p id="change-0.3.4-14"><span class="target" id="change-4c9bf70f421052228204cfd54e3196b0"><strong>[orm] </strong></span>fix to post_update to ensure rows are updated even for non insert/delete
1661
scenarios<a class="changeset-link reference internal" href="#change-4c9bf70f421052228204cfd54e3196b0">(link)</a><p> <a class="reference external" href="http://www.sqlalchemy.org/trac/ticket/413">#413</a></p>
1662
</p>
1663
</li>
1664
<li><p id="change-0.3.4-15"><span class="target" id="change-003b8a29b4cd8dc41607198658523317"><strong>[orm] </strong></span>added an error message if you actually try to modify primary key values on
1665
an entity and then flush it<a class="changeset-link reference internal" href="#change-003b8a29b4cd8dc41607198658523317">(link)</a><p> <a class="reference external" href="http://www.sqlalchemy.org/trac/ticket/412">#412</a></p>
1666
</p>
1667
</li>
1668
</ul>
1669
</div>
1670
<div class="section" id="change-0.3.4-sql">
1671
<h3>sql<a class="headerlink" href="#change-0.3.4-sql" title="Permalink to this headline">¶</a></h3>
1672
<ul class="simple">
1673
<li><p id="change-0.3.4-16"><span class="target" id="change-e485ef1aa25a4c1e54a8d7a9afa8749e"><strong>[sql] </strong></span>added “fetchmany()” support to ResultProxy<a class="changeset-link reference internal" href="#change-e485ef1aa25a4c1e54a8d7a9afa8749e">(link)</a><p></p>
1674
</p>
1675
</li>
1676
<li><p id="change-0.3.4-17"><span class="target" id="change-594afe1f5a9a758e9428229d6e156f32"><strong>[sql] </strong></span>added support for column “key” attribute to be useable in
1677
row[<key>]/row.<key><a class="changeset-link reference internal" href="#change-594afe1f5a9a758e9428229d6e156f32">(link)</a><p></p>
1678
</p>
1679
</li>
1680
<li><p id="change-0.3.4-18"><span class="target" id="change-36de194453369736e2c6d36951589a57"><strong>[sql] </strong></span>changed “BooleanExpression” to subclass from “BinaryExpression”, so that
1681
boolean expressions can also follow column-clause behaviors (i.e. label(),
1682
etc).<a class="changeset-link reference internal" href="#change-36de194453369736e2c6d36951589a57">(link)</a><p></p>
1683
</p>
1684
</li>
1685
<li><p id="change-0.3.4-19"><span class="target" id="change-fd647f39d01615d6a2c872791f220b3d"><strong>[sql] </strong></span>trailing underscores are trimmed from func.<xxx> calls, such as func.if_()<a class="changeset-link reference internal" href="#change-fd647f39d01615d6a2c872791f220b3d">(link)</a><p></p>
1686
</p>
1687
</li>
1688
<li><p id="change-0.3.4-20"><span class="target" id="change-7c82a8fe27927597ae6beb2b46eaaa4e"><strong>[sql] </strong></span>fix to correlation of subqueries when the column list of the select
1689
statement is constructed with individual calls to append_column(); this
1690
fixes an ORM bug whereby nested select statements were not getting
1691
correlated with the main select generated by the Query object.<a class="changeset-link reference internal" href="#change-7c82a8fe27927597ae6beb2b46eaaa4e">(link)</a><p></p>
1692
</p>
1693
</li>
1694
<li><p id="change-0.3.4-21"><span class="target" id="change-9e9c62f87ee18fefb379e8a4754ae2f8"><strong>[sql] </strong></span>another fix to subquery correlation so that a subquery which has only one
1695
FROM element will <em>not</em> correlate that single element, since at least one
1696
FROM element is required in a query.<a class="changeset-link reference internal" href="#change-9e9c62f87ee18fefb379e8a4754ae2f8">(link)</a><p></p>
1697
</p>
1698
</li>
1699
<li><p id="change-0.3.4-22"><span class="target" id="change-5f52342a7f4ca2f210861d452dec505a"><strong>[sql] </strong></span>default “timezone” setting is now False. this corresponds to Python’s
1700
datetime behavior as well as Postgres’ timestamp/time types (which is the
1701
only timezone-sensitive dialect at the moment)<a class="changeset-link reference internal" href="#change-5f52342a7f4ca2f210861d452dec505a">(link)</a><p> <a class="reference external" href="http://www.sqlalchemy.org/trac/ticket/414">#414</a></p>
1702
</p>
1703
</li>
1704
<li><p id="change-0.3.4-23"><span class="target" id="change-66229214f0f9e03fc7dee45d95c8e67c"><strong>[sql] </strong></span>the “op()” function is now treated as an “operation”, rather than a
1705
“comparison”. the difference is, an operation produces a BinaryExpression
1706
from which further operations can occur whereas comparison produces the
1707
more restrictive BooleanExpression<a class="changeset-link reference internal" href="#change-66229214f0f9e03fc7dee45d95c8e67c">(link)</a><p></p>
1708
</p>
1709
</li>
1710
<li><p id="change-0.3.4-24"><span class="target" id="change-d41715babcf6b70d6f88adf677313ea8"><strong>[sql] </strong></span>trying to redefine a reflected primary key column as non-primary key raises
1711
an error<a class="changeset-link reference internal" href="#change-d41715babcf6b70d6f88adf677313ea8">(link)</a><p></p>
1712
</p>
1713
</li>
1714
<li><p id="change-0.3.4-25"><span class="target" id="change-a8e520f2f077ca90381491c36493fe9d"><strong>[sql] </strong></span>type system slightly modified to support TypeDecorators that can be
1715
overridden by the dialect (ok, thats not very clear, it allows the mssql
1716
tweak below to be possible)<a class="changeset-link reference internal" href="#change-a8e520f2f077ca90381491c36493fe9d">(link)</a><p></p>
1717
</p>
1718
</li>
1719
</ul>
1720
</div>
1721
<div class="section" id="change-0.3.4-mysql">
1722
<h3>mysql<a class="headerlink" href="#change-0.3.4-mysql" title="Permalink to this headline">¶</a></h3>
1723
<ul class="simple">
1724
<li><p id="change-0.3.4-26"><span class="target" id="change-5398fcc75e1c898762a840d5476e9802"><strong>[mysql] </strong></span>mysql is inconsistent with what kinds of quotes it uses in foreign keys
1725
during a SHOW CREATE TABLE, reflection updated to accomodate for all three
1726
styles<a class="changeset-link reference internal" href="#change-5398fcc75e1c898762a840d5476e9802">(link)</a><p> <a class="reference external" href="http://www.sqlalchemy.org/trac/ticket/420">#420</a></p>
1727
</p>
1728
</li>
1729
<li><p id="change-0.3.4-27"><span class="target" id="change-93636efc4d02d5b5e25f763da5f6dbb6"><strong>[mysql] </strong></span>mysql table create options work on a generic passthru now, i.e. Table(...,
1730
mysql_engine=’InnoDB’, mysql_collate=”latin1_german2_ci”,
1731
mysql_auto_increment=”5”, mysql_<somearg>...), helps<a class="changeset-link reference internal" href="#change-93636efc4d02d5b5e25f763da5f6dbb6">(link)</a><p> <a class="reference external" href="http://www.sqlalchemy.org/trac/ticket/418">#418</a></p>
1732
</p>
1733
</li>
1734
</ul>
1735
</div>
1736
<div class="section" id="change-0.3.4-mssql">
1737
<h3>mssql<a class="headerlink" href="#change-0.3.4-mssql" title="Permalink to this headline">¶</a></h3>
1738
<ul class="simple">
1739
<li><p id="change-0.3.4-28"><span class="target" id="change-71800340e8b8eaf7f5bbfeb1bb7fa8fa"><strong>[mssql] </strong></span>added an NVarchar type (produces NVARCHAR), also MSUnicode which provides
1740
Unicode-translation for the NVarchar regardless of dialect convert_unicode
1741
setting.<a class="changeset-link reference internal" href="#change-71800340e8b8eaf7f5bbfeb1bb7fa8fa">(link)</a><p></p>
1742
</p>
1743
</li>
1744
</ul>
1745
</div>
1746
<div class="section" id="change-0.3.4-oracle">
1747
<h3>oracle<a class="headerlink" href="#change-0.3.4-oracle" title="Permalink to this headline">¶</a></h3>
1748
<ul class="simple">
1749
<li><p id="change-0.3.4-29"><span class="target" id="change-7e37b511a75dea4c081f6e861d2577d9"><strong>[oracle] </strong></span><em>slight</em> support for binary, but still need to figure out how to insert
1750
reasonably large values (over 4K). requires auto_setinputsizes=True sent to
1751
create_engine(), rows must be fully fetched individually, etc.<a class="changeset-link reference internal" href="#change-7e37b511a75dea4c081f6e861d2577d9">(link)</a><p></p>
1752
</p>
1753
</li>
1754
</ul>
1755
</div>
1756
<div class="section" id="change-0.3.4-firebird">
1757
<h3>firebird<a class="headerlink" href="#change-0.3.4-firebird" title="Permalink to this headline">¶</a></h3>
1758
<ul class="simple">
1759
<li><p id="change-0.3.4-30"><span class="target" id="change-f5553b26f95beaede1e3993d72351403"><strong>[firebird] </strong></span>order of constraint creation puts primary key first before all other
1760
constraints; required for firebird, not a bad idea for others<a class="changeset-link reference internal" href="#change-f5553b26f95beaede1e3993d72351403">(link)</a><p> <a class="reference external" href="http://www.sqlalchemy.org/trac/ticket/408">#408</a></p>
1761
</p>
1762
</li>
1763
<li><p id="change-0.3.4-31"><span class="target" id="change-7d0941d7be1eff286a79a26140dbec40"><strong>[firebird] </strong></span>Firebird fix to autoload multifield foreign keys<a class="changeset-link reference internal" href="#change-7d0941d7be1eff286a79a26140dbec40">(link)</a><p> <a class="reference external" href="http://www.sqlalchemy.org/trac/ticket/409">#409</a></p>
1764
</p>
1765
</li>
1766
<li><p id="change-0.3.4-32"><span class="target" id="change-1dd0655cdeb215bba70f97a6144d2d79"><strong>[firebird] </strong></span>Firebird NUMERIC type properly handles a type without precision<a class="changeset-link reference internal" href="#change-1dd0655cdeb215bba70f97a6144d2d79">(link)</a><p> <a class="reference external" href="http://www.sqlalchemy.org/trac/ticket/409">#409</a></p>
1767
</p>
1768
</li>
1769
</ul>
1770
</div>
1771
<div class="section" id="change-0.3.4-misc">
1772
<h3>misc<a class="headerlink" href="#change-0.3.4-misc" title="Permalink to this headline">¶</a></h3>
1773
<ul class="simple">
1774
<li><p id="change-0.3.4-33"><span class="target" id="change-fa53dae6bfd7b7e8b384d216ee8ba515"><strong>[postgres] </strong></span>fix to the initial checkfirst for tables to take current schema into
1775
account<a class="changeset-link reference internal" href="#change-fa53dae6bfd7b7e8b384d216ee8ba515">(link)</a><p> <a class="reference external" href="http://www.sqlalchemy.org/trac/ticket/424">#424</a></p>
1776
</p>
1777
</li>
1778
<li><p id="change-0.3.4-34"><span class="target" id="change-1cd224ad7dc6c4a22f02a844273d939f"><strong>[postgres] </strong></span>postgres has an optional “server_side_cursors=True” flag which will utilize
1779
server side cursors. these are appropriate for fetching only partial
1780
results and are necessary for working with very large unbounded result
1781
sets. While we’d like this to be the default behavior, different
1782
environments seem to have different results and the causes have not been
1783
isolated so we are leaving the feature off by default for now. Uses an
1784
apparently undocumented psycopg2 behavior recently discovered on the
1785
psycopg mailing list.<a class="changeset-link reference internal" href="#change-1cd224ad7dc6c4a22f02a844273d939f">(link)</a><p></p>
1786
</p>
1787
</li>
1788
<li><p id="change-0.3.4-35"><span class="target" id="change-6f6b781d6e5399b6526088cc619cd843"><strong>[postgres] </strong></span>added “BIGSERIAL” support for postgres table with
1789
PGBigInteger/autoincrement<a class="changeset-link reference internal" href="#change-6f6b781d6e5399b6526088cc619cd843">(link)</a><p></p>
1790
</p>
1791
</li>
1792
<li><p id="change-0.3.4-36"><span class="target" id="change-61cfe585aaae9ecddaff0f20996405f7"><strong>[postgres] </strong></span>fixes to postgres reflection to better handle when schema names are
1793
present; thanks to jason (at) ncsmags.com<a class="changeset-link reference internal" href="#change-61cfe585aaae9ecddaff0f20996405f7">(link)</a><p> <a class="reference external" href="http://www.sqlalchemy.org/trac/ticket/402">#402</a></p>
1794
</p>
1795
</li>
1796
<li><p id="change-0.3.4-37"><span class="target" id="change-d06299a138c88ba57c7c327e826b3f81"><strong>[extensions] </strong></span>added “validate=False” argument to assign_mapper, if True will ensure that
1797
only mapped attributes are named<a class="changeset-link reference internal" href="#change-d06299a138c88ba57c7c327e826b3f81">(link)</a><p> <a class="reference external" href="http://www.sqlalchemy.org/trac/ticket/426">#426</a></p>
1798
</p>
1799
</li>
1800
<li><p id="change-0.3.4-38"><span class="target" id="change-7e48f7fba0d3f1b5bad84893f66dc9f4"><strong>[extensions] </strong></span>assign_mapper gets “options”, “instances” functions added (i.e.
1801
MyClass.instances())<a class="changeset-link reference internal" href="#change-7e48f7fba0d3f1b5bad84893f66dc9f4">(link)</a><p></p>
1802
</p>
1803
</li>
1804
</ul>
1805
</div>
1806
</div>
1807
<div class="section" id="change-0.3.3">
1808
<h2>0.3.3<a class="headerlink" href="#change-0.3.3" title="Permalink to this headline">¶</a></h2>
1809
Released: Fri Dec 15 2006<ul class="simple">
1810
<li><p id="change-0.3.3-0"><span class="target" id="change-5032f5e367ae143bbec87043ab8fcf11"></span>string-based FROM clauses fixed, i.e. select(..., from_obj=[“sometext”])<a class="changeset-link reference internal" href="#change-5032f5e367ae143bbec87043ab8fcf11">(link)</a><p></p>
1811
</p>
1812
</li>
1813
<li><p id="change-0.3.3-1"><span class="target" id="change-a496d8fae942c14d4523057bd979019c"></span>fixes to passive_deletes flag, lazy=None (noload) flag<a class="changeset-link reference internal" href="#change-a496d8fae942c14d4523057bd979019c">(link)</a><p></p>
1814
</p>
1815
</li>
1816
<li><p id="change-0.3.3-2"><span class="target" id="change-30a2c69a9decacc368b9a7b6779980ec"></span>added example/docs for dealing with large collections<a class="changeset-link reference internal" href="#change-30a2c69a9decacc368b9a7b6779980ec">(link)</a><p></p>
1817
</p>
1818
</li>
1819
<li><p id="change-0.3.3-3"><span class="target" id="change-cc99c5f52ba79f63b5f7b50754788b0a"></span>added object_session() method to sqlalchemy namespace<a class="changeset-link reference internal" href="#change-cc99c5f52ba79f63b5f7b50754788b0a">(link)</a><p></p>
1820
</p>
1821
</li>
1822
<li><p id="change-0.3.3-4"><span class="target" id="change-80533f7c200e079d90597f6266ff66d5"></span>fixed QueuePool bug whereby its better able to reconnect to a database
1823
that was not reachable (thanks to Sébastien Lelong), also fixed dispose()
1824
method<a class="changeset-link reference internal" href="#change-80533f7c200e079d90597f6266ff66d5">(link)</a><p></p>
1825
</p>
1826
</li>
1827
<li><p id="change-0.3.3-5"><span class="target" id="change-d1570d0ab054957641111d7e277d03b4"></span>patch that makes MySQL rowcount work correctly!<a class="changeset-link reference internal" href="#change-d1570d0ab054957641111d7e277d03b4">(link)</a><p> <a class="reference external" href="http://www.sqlalchemy.org/trac/ticket/396">#396</a></p>
1828
</p>
1829
</li>
1830
<li><p id="change-0.3.3-6"><span class="target" id="change-2cadf5490827d447b1d4830a90b41caf"></span>fix to MySQL catch of 2006/2014 errors to properly re-raise OperationalError
1831
exception<a class="changeset-link reference internal" href="#change-2cadf5490827d447b1d4830a90b41caf">(link)</a><p></p>
1832
</p>
1833
</li>
1834
</ul>
1835
</div>
1836
<div class="section" id="change-0.3.2">
1837
<h2>0.3.2<a class="headerlink" href="#change-0.3.2" title="Permalink to this headline">¶</a></h2>
1838
Released: Sun Dec 10 2006<ul class="simple">
1839
<li><p id="change-0.3.2-0"><span class="target" id="change-19098e0e6eed7c931125d7e25d812756"></span>major connection pool bug fixed. fixes MySQL out of sync
1840
errors, will also prevent transactions getting rolled back
1841
accidentally in all DBs<a class="changeset-link reference internal" href="#change-19098e0e6eed7c931125d7e25d812756">(link)</a><p> <a class="reference external" href="http://www.sqlalchemy.org/trac/ticket/387">#387</a></p>
1842
</p>
1843
</li>
1844
<li><p id="change-0.3.2-1"><span class="target" id="change-278ff1b4865a34c36458359bdba8e20e"></span>major speed enhancements vs. 0.3.1, to bring speed
1845
back to 0.2.8 levels<a class="changeset-link reference internal" href="#change-278ff1b4865a34c36458359bdba8e20e">(link)</a><p></p>
1846
</p>
1847
</li>
1848
<li><p id="change-0.3.2-2"><span class="target" id="change-da5c4522ae9018928c5a69dbe99fa7f3"></span>made conditional dozens of debug log calls that were
1849
time-intensive to generate log messages<a class="changeset-link reference internal" href="#change-da5c4522ae9018928c5a69dbe99fa7f3">(link)</a><p></p>
1850
</p>
1851
</li>
1852
<li><p id="change-0.3.2-3"><span class="target" id="change-47d47dccb2480566207c5fe438fcf435"></span>fixed bug in cascade rules whereby the entire object graph
1853
could be unnecessarily cascaded on the save/update cascade<a class="changeset-link reference internal" href="#change-47d47dccb2480566207c5fe438fcf435">(link)</a><p></p>
1854
</p>
1855
</li>
1856
<li><p id="change-0.3.2-4"><span class="target" id="change-d1b12f9efbb4d033df0a742d87c94ec6"></span>various speedups in attributes module<a class="changeset-link reference internal" href="#change-d1b12f9efbb4d033df0a742d87c94ec6">(link)</a><p></p>
1857
</p>
1858
</li>
1859
<li><p id="change-0.3.2-5"><span class="target" id="change-3c38a41db88ddb08db4d6f9d55194829"></span>identity map in Session is by default <em>no longer weak referencing</em>.
1860
to have it be weak referencing, use create_session(weak_identity_map=True)
1861
fixes<a class="changeset-link reference internal" href="#change-3c38a41db88ddb08db4d6f9d55194829">(link)</a><p> <a class="reference external" href="http://www.sqlalchemy.org/trac/ticket/388">#388</a></p>
1862
</p>
1863
</li>
1864
<li><p id="change-0.3.2-6"><span class="target" id="change-79647e60f1175354aca8ce75bc921e74"></span>MySQL detects errors 2006 (server has gone away) and 2014
1865
(commands out of sync) and invalidates the connection on which it occured.<a class="changeset-link reference internal" href="#change-79647e60f1175354aca8ce75bc921e74">(link)</a><p></p>
1866
</p>
1867
</li>
1868
<li><p id="change-0.3.2-7"><span class="target" id="change-35fdc30fd93b0c3e1b37402908f76fd2"></span>MySQL bool type fix:<a class="changeset-link reference internal" href="#change-35fdc30fd93b0c3e1b37402908f76fd2">(link)</a><p> <a class="reference external" href="http://www.sqlalchemy.org/trac/ticket/307">#307</a></p>
1869
</p>
1870
</li>
1871
<li><p id="change-0.3.2-8"><span class="target" id="change-1ee7b209987629c6f339a0dcc1d703a0"></span>postgres reflection fixes:<a class="changeset-link reference internal" href="#change-1ee7b209987629c6f339a0dcc1d703a0">(link)</a><p> <a class="reference external" href="http://www.sqlalchemy.org/trac/ticket/382">#382</a>, <a class="reference external" href="http://www.sqlalchemy.org/trac/ticket/349">#349</a></p>
1872
</p>
1873
</li>
1874
<li><p id="change-0.3.2-9"><span class="target" id="change-fd7e2e948165b16a849ce49011d87d21"></span>added keywords for EXCEPT, INTERSECT, EXCEPT ALL, INTERSECT ALL<a class="changeset-link reference internal" href="#change-fd7e2e948165b16a849ce49011d87d21">(link)</a><p> <a class="reference external" href="http://www.sqlalchemy.org/trac/ticket/247">#247</a></p>
1875
</p>
1876
</li>
1877
<li><p id="change-0.3.2-10"><span class="target" id="change-c52f4bfa0a28896df33156b19ff3ca89"></span>assign_mapper in assignmapper extension returns the created mapper<a class="changeset-link reference internal" href="#change-c52f4bfa0a28896df33156b19ff3ca89">(link)</a><p> <a class="reference external" href="http://www.sqlalchemy.org/trac/ticket/2110">#2110</a></p>
1878
</p>
1879
</li>
1880
<li><p id="change-0.3.2-11"><span class="target" id="change-f6551d6f54899ff8108cbbbd26e5018c"></span>added label() function to Select class, when scalar=True is used
1881
to create a scalar subquery
1882
i.e. “select x, y, (select max(foo) from table) AS foomax from table”<a class="changeset-link reference internal" href="#change-f6551d6f54899ff8108cbbbd26e5018c">(link)</a><p></p>
1883
</p>
1884
</li>
1885
<li><p id="change-0.3.2-12"><span class="target" id="change-9f53e9bcf5cece6ce6d03fb58eda20ad"></span>added onupdate and ondelete keyword arguments to ForeignKey; propagate
1886
to underlying ForeignKeyConstraint if present. (dont propagate in the
1887
other direction, however)<a class="changeset-link reference internal" href="#change-9f53e9bcf5cece6ce6d03fb58eda20ad">(link)</a><p></p>
1888
</p>
1889
</li>
1890
<li><p id="change-0.3.2-13"><span class="target" id="change-8372c4057499c22e46cf0bcc739b695d"></span>fix to session.update() to preserve “dirty” status of incoming object<a class="changeset-link reference internal" href="#change-8372c4057499c22e46cf0bcc739b695d">(link)</a><p></p>
1891
</p>
1892
</li>
1893
<li><p id="change-0.3.2-14"><span class="target" id="change-a1e2bb60c3cd464a48cdfbff5d33f9c2"></span>sending a selectable to an IN via the in_() function no longer creates
1894
a “union” out of multiple selects; only one selectable to a the in_() function
1895
is allowed now (make a union yourself if union is needed)<a class="changeset-link reference internal" href="#change-a1e2bb60c3cd464a48cdfbff5d33f9c2">(link)</a><p></p>
1896
</p>
1897
</li>
1898
<li><p id="change-0.3.2-15"><span class="target" id="change-e009ef228c4e1a8a3e92bc728fbc438a"></span>improved support for disabling save-update cascade via cascade=”none” etc.<a class="changeset-link reference internal" href="#change-e009ef228c4e1a8a3e92bc728fbc438a">(link)</a><p></p>
1899
</p>
1900
</li>
1901
<li><p id="change-0.3.2-16"><span class="target" id="change-dcd5c21c1c376d26e9907a451ceb1ad7"></span>added “remote_side” argument to relation(), used only with self-referential
1902
mappers to force the direction of the parent/child relationship. replaces
1903
the usage of the “foreignkey” parameter for “switching” the direction.
1904
“foreignkey” argument is deprecated for all uses and will eventually
1905
be replaced by an argument dedicated to ForeignKey specification on mappers.<a class="changeset-link reference internal" href="#change-dcd5c21c1c376d26e9907a451ceb1ad7">(link)</a><p></p>
1906
</p>
1907
</li>
1908
</ul>
1909
</div>
1910
<div class="section" id="change-0.3.1">
1911
<h2>0.3.1<a class="headerlink" href="#change-0.3.1" title="Permalink to this headline">¶</a></h2>
1912
Released: Mon Nov 13 2006<div class="section" id="change-0.3.1-orm">
1913
<h3>orm<a class="headerlink" href="#change-0.3.1-orm" title="Permalink to this headline">¶</a></h3>
1914
<ul class="simple">
1915
<li><p id="change-0.3.1-0"><span class="target" id="change-0af98bf52dddbf728106569a225ffa27"><strong>[orm] </strong></span>the “delete” cascade will load in all child objects, if they were not
1916
loaded already. this can be turned off (i.e. the old behavior) by setting
1917
passive_deletes=True on a relation().<a class="changeset-link reference internal" href="#change-0af98bf52dddbf728106569a225ffa27">(link)</a><p></p>
1918
</p>
1919
</li>
1920
<li><p id="change-0.3.1-1"><span class="target" id="change-a23f03ece2ae82e1264ecacd54d01e12"><strong>[orm] </strong></span>adjustments to reworked eager query generation to not fail on circular
1921
eager-loaded relationships (like backrefs)<a class="changeset-link reference internal" href="#change-a23f03ece2ae82e1264ecacd54d01e12">(link)</a><p></p>
1922
</p>
1923
</li>
1924
<li><p id="change-0.3.1-2"><span class="target" id="change-201da868406f1523d1d4d0051049fbb3"><strong>[orm] </strong></span>fixed bug where eagerload() (nor lazyload()) option didn’t properly
1925
instruct the Query whether or not to use “nesting” when producing a
1926
LIMIT query.<a class="changeset-link reference internal" href="#change-201da868406f1523d1d4d0051049fbb3">(link)</a><p></p>
1927
</p>
1928
</li>
1929
<li><p id="change-0.3.1-3"><span class="target" id="change-ed4601755ccc028c0cda37fd8bc2343f"><strong>[orm] </strong></span>fixed bug in circular dependency sorting at flush time; if object A
1930
contained a cyclical many-to-one relationship to object B, and object B
1931
was just attached to object A, <em>but</em> object B itself wasnt changed,
1932
the many-to-one synchronize of B’s primary key attribute to A’s foreign key
1933
attribute wouldnt occur.<a class="changeset-link reference internal" href="#change-ed4601755ccc028c0cda37fd8bc2343f">(link)</a><p> <a class="reference external" href="http://www.sqlalchemy.org/trac/ticket/360">#360</a></p>
1934
</p>
1935
</li>
1936
<li><p id="change-0.3.1-4"><span class="target" id="change-443db0da68194af1c486a31424626acc"><strong>[orm] </strong></span>implemented from_obj argument for query.count, improves count function
1937
on selectresults<a class="changeset-link reference internal" href="#change-443db0da68194af1c486a31424626acc">(link)</a><p> <a class="reference external" href="http://www.sqlalchemy.org/trac/ticket/325">#325</a></p>
1938
</p>
1939
</li>
1940
<li><p id="change-0.3.1-5"><span class="target" id="change-6c3fe5348af079926eefaa5fe198132a"><strong>[orm] </strong></span>added an assertion within the “cascade” step of ORM relationships to check
1941
that the class of object attached to a parent object is appropriate
1942
(i.e. if A.items stores B objects, raise an error if a C is appended to A.items)<a class="changeset-link reference internal" href="#change-6c3fe5348af079926eefaa5fe198132a">(link)</a><p></p>
1943
</p>
1944
</li>
1945
<li><p id="change-0.3.1-6"><span class="target" id="change-3c54016dd3eb6240c61bdf6630fb6ba2"><strong>[orm] </strong></span>new extension sqlalchemy.ext.associationproxy, provides transparent
1946
“association object” mappings. new example
1947
examples/association/proxied_association.py illustrates.<a class="changeset-link reference internal" href="#change-3c54016dd3eb6240c61bdf6630fb6ba2">(link)</a><p></p>
1948
</p>
1949
</li>
1950
<li><p id="change-0.3.1-7"><span class="target" id="change-2352347ba67e763e63b5ab5fee615fd0"><strong>[orm] </strong></span>improvement to single table inheritance to load full hierarchies beneath
1951
the target class<a class="changeset-link reference internal" href="#change-2352347ba67e763e63b5ab5fee615fd0">(link)</a><p></p>
1952
</p>
1953
</li>
1954
<li><p id="change-0.3.1-8"><span class="target" id="change-7c2c83368bc653695d50bf41a32ba122"><strong>[orm] </strong></span>fix to subtle condition in topological sort where a node could appear twice,
1955
for<a class="changeset-link reference internal" href="#change-7c2c83368bc653695d50bf41a32ba122">(link)</a><p> <a class="reference external" href="http://www.sqlalchemy.org/trac/ticket/362">#362</a></p>
1956
</p>
1957
</li>
1958
<li><p id="change-0.3.1-9"><span class="target" id="change-21099b0b4cfd087d7544c0d5b29f20ad"><strong>[orm] </strong></span>additional rework to topological sort, refactoring, for<a class="changeset-link reference internal" href="#change-21099b0b4cfd087d7544c0d5b29f20ad">(link)</a><p> <a class="reference external" href="http://www.sqlalchemy.org/trac/ticket/365">#365</a></p>
1959
</p>
1960
</li>
1961
<li><p id="change-0.3.1-10"><span class="target" id="change-c31972da5ddfab970d95b975b0de0f13"><strong>[orm] </strong></span>“delete-orphan” for a certain type can be set on more than one parent class;
1962
the instance is an “orphan” only if its not attached to <em>any</em> of those parents<a class="changeset-link reference internal" href="#change-c31972da5ddfab970d95b975b0de0f13">(link)</a><p></p>
1963
</p>
1964
</li>
1965
</ul>
1966
</div>
1967
<div class="section" id="change-0.3.1-misc">
1968
<h3>misc<a class="headerlink" href="#change-0.3.1-misc" title="Permalink to this headline">¶</a></h3>
1969
<ul class="simple">
1970
<li><p id="change-0.3.1-11"><span class="target" id="change-ae1c652969370d12b5391b3c25bc311b"><strong>[engine/pool] </strong></span>some new Pool utility classes, updated docs<a class="changeset-link reference internal" href="#change-ae1c652969370d12b5391b3c25bc311b">(link)</a><p></p>
1971
</p>
1972
</li>
1973
<li><p id="change-0.3.1-12"><span class="target" id="change-40bd8ced1a542293a3bee2e4e993b319"><strong>[engine/pool] </strong></span>“use_threadlocal” on Pool defaults to False (same as create_engine)<a class="changeset-link reference internal" href="#change-40bd8ced1a542293a3bee2e4e993b319">(link)</a><p></p>
1974
</p>
1975
</li>
1976
<li><p id="change-0.3.1-13"><span class="target" id="change-d05d5b0d7cbdb72d11dda30dba80e253"><strong>[engine/pool] </strong></span>fixed direct execution of Compiled objects<a class="changeset-link reference internal" href="#change-d05d5b0d7cbdb72d11dda30dba80e253">(link)</a><p></p>
1977
</p>
1978
</li>
1979
<li><p id="change-0.3.1-14"><span class="target" id="change-1885d87fb351efb5bff2f68a1b5f237e"><strong>[engine/pool] </strong></span>create_engine() reworked to be strict about incoming <a href="#id13"><span class="problematic" id="id14">**</span></a>kwargs. all keyword
1980
arguments must be consumed by one of the dialect, connection pool, and engine
1981
constructors, else a TypeError is thrown which describes the full set of
1982
invalid kwargs in relation to the selected dialect/pool/engine configuration.<a class="changeset-link reference internal" href="#change-1885d87fb351efb5bff2f68a1b5f237e">(link)</a><p></p>
1983
</p>
1984
</li>
1985
<li><p id="change-0.3.1-15"><span class="target" id="change-95a6b3fd67d1f8a92d5fc7d3c4a72cd3"><strong>[databases/types] </strong></span>MySQL catches exception on “describe” and reports as NoSuchTableError<a class="changeset-link reference internal" href="#change-95a6b3fd67d1f8a92d5fc7d3c4a72cd3">(link)</a><p></p>
1986
</p>
1987
</li>
1988
<li><p id="change-0.3.1-16"><span class="target" id="change-01a55d6e648e86ae237b8c9014765637"><strong>[databases/types] </strong></span>further fixes to sqlite booleans, weren’t working as defaults<a class="changeset-link reference internal" href="#change-01a55d6e648e86ae237b8c9014765637">(link)</a><p></p>
1989
</p>
1990
</li>
1991
<li><p id="change-0.3.1-17"><span class="target" id="change-4990b03a3ffa7973be6eaf89b54a64c2"><strong>[databases/types] </strong></span>fix to postgres sequence quoting when using schemas<a class="changeset-link reference internal" href="#change-4990b03a3ffa7973be6eaf89b54a64c2">(link)</a><p></p>
1992
</p>
1993
</li>
1994
</ul>
1995
</div>
1996
</div>
1997
<div class="section" id="change-0.3.0">
1998
<h2>0.3.0<a class="headerlink" href="#change-0.3.0" title="Permalink to this headline">¶</a></h2>
1999
Released: Sun Oct 22 2006<div class="section" id="change-0.3.0-general">
2000
<h3>general<a class="headerlink" href="#change-0.3.0-general" title="Permalink to this headline">¶</a></h3>
2001
<ul class="simple">
2002
<li><p id="change-0.3.0-0"><span class="target" id="change-af1703046aac222edc8054620ba72d5b"><strong>[general] </strong></span>logging is now implemented via standard python “logging” module.
2003
“echo” keyword parameters are still functional but set/unset
2004
log levels for their respective classes/instances. all logging
2005
can be controlled directly through the Python API by setting
2006
INFO and DEBUG levels for loggers in the “sqlalchemy” namespace.
2007
class-level logging is under “sqlalchemy.<module>.<classname>”,
2008
instance-level logging under “sqlalchemy.<module>.<classname>.0x..<00-FF>”.
2009
Test suite includes “–log-info” and “–log-debug” arguments
2010
which work independently of –verbose/–quiet. Logging added
2011
to orm to allow tracking of mapper configurations, row iteration.<a class="changeset-link reference internal" href="#change-af1703046aac222edc8054620ba72d5b">(link)</a><p></p>
2012
</p>
2013
</li>
2014
<li><p id="change-0.3.0-1"><span class="target" id="change-5becb5a90dce00b288e48c42b5b11c91"><strong>[general] </strong></span>the documentation-generation system has been overhauled to be
2015
much simpler in design and more integrated with Markdown<a class="changeset-link reference internal" href="#change-5becb5a90dce00b288e48c42b5b11c91">(link)</a><p></p>
2016
</p>
2017
</li>
2018
</ul>
2019
</div>
2020
<div class="section" id="change-0.3.0-orm">
2021
<h3>orm<a class="headerlink" href="#change-0.3.0-orm" title="Permalink to this headline">¶</a></h3>
2022
<ul class="simple">
2023
<li><p id="change-0.3.0-2"><span class="target" id="change-4d0f18a84af312791a640dd1de2ac5aa"><strong>[orm] </strong></span>attribute tracking modified to be more intelligent about detecting
2024
changes, particularly with mutable types. TypeEngine objects now
2025
take a greater role in defining how to compare two scalar instances,
2026
including the addition of a MutableType mixin which is implemented by
2027
PickleType. unit-of-work now tracks the “dirty” list as an expression
2028
of all persistent objects where the attribute manager detects changes.
2029
The basic issue thats fixed is detecting changes on PickleType
2030
objects, but also generalizes type handling and “modified” object
2031
checking to be more complete and extensible.<a class="changeset-link reference internal" href="#change-4d0f18a84af312791a640dd1de2ac5aa">(link)</a><p></p>
2032
</p>
2033
</li>
2034
<li><p id="change-0.3.0-3"><span class="target" id="change-b455e30f2020397a52b52dee6104b5c3"><strong>[orm] </strong></span>a wide refactoring to “attribute loader” and “options” architectures.
2035
ColumnProperty and PropertyLoader define their loading behaivor via switchable
2036
“strategies”, and MapperOptions no longer use mapper/property copying
2037
in order to function; they are instead propagated via QueryContext
2038
and SelectionContext objects at query/instances time.
2039
All of the internal copying of mappers and properties that was used to handle
2040
inheritance as well as options() has been removed; the structure
2041
of mappers and properties is much simpler than before and is clearly laid out
2042
in the new ‘interfaces’ module.<a class="changeset-link reference internal" href="#change-b455e30f2020397a52b52dee6104b5c3">(link)</a><p></p>
2043
</p>
2044
</li>
2045
<li><p id="change-0.3.0-4"><span class="target" id="change-1119b49161e5498c6ab5268241c9bc68"><strong>[orm] </strong></span>related to the mapper/property overhaul, internal refactoring to
2046
mapper instances() method to use a SelectionContext object to track
2047
state during the operation.
2048
SLIGHT API BREAKAGE: the append_result() and populate_instances()
2049
methods on MapperExtension have a slightly different method signature
2050
now as a result of the change; hoping that these methods are not
2051
in widespread use as of yet.<a class="changeset-link reference internal" href="#change-1119b49161e5498c6ab5268241c9bc68">(link)</a><p></p>
2052
</p>
2053
</li>
2054
<li><p id="change-0.3.0-5"><span class="target" id="change-b9edae4ebe585fc03a2663daead0be3c"><strong>[orm] </strong></span>instances() method moved to Query now, backwards-compatible
2055
version remains on Mapper.<a class="changeset-link reference internal" href="#change-b9edae4ebe585fc03a2663daead0be3c">(link)</a><p></p>
2056
</p>
2057
</li>
2058
<li><p id="change-0.3.0-6"><span class="target" id="change-35f311fe6deb6c511ce9e34f3aba4864"><strong>[orm] </strong></span>added contains_eager() MapperOption, used in conjunction with
2059
instances() to specify properties that should be eagerly loaded
2060
from the result set, using their plain column names by default, or translated
2061
given an custom row-translation function.<a class="changeset-link reference internal" href="#change-35f311fe6deb6c511ce9e34f3aba4864">(link)</a><p></p>
2062
</p>
2063
</li>
2064
<li><p id="change-0.3.0-7"><span class="target" id="change-50bbbc3588a69af8445ccb96ccd2e5ce"><strong>[orm] </strong></span>more rearrangements of unit-of-work commit scheme to better allow
2065
dependencies within circular flushes to work properly...updated
2066
task traversal/logging implementation<a class="changeset-link reference internal" href="#change-50bbbc3588a69af8445ccb96ccd2e5ce">(link)</a><p></p>
2067
</p>
2068
</li>
2069
<li><p id="change-0.3.0-8"><span class="target" id="change-cc6b22ffd1c978ed11157bf9e14e6394"><strong>[orm] </strong></span>polymorphic mappers (i.e. using inheritance) now produces INSERT
2070
statements in order of tables across all inherited classes<a class="changeset-link reference internal" href="#change-cc6b22ffd1c978ed11157bf9e14e6394">(link)</a><p> <a class="reference external" href="http://www.sqlalchemy.org/trac/ticket/321">#321</a></p>
2071
</p>
2072
</li>
2073
<li><p id="change-0.3.0-9"><span class="target" id="change-69a48fb25de0e1cd620693a836968e3d"><strong>[orm] </strong></span>added an automatic “row switch” feature to mapping, which will
2074
detect a pending instance/deleted instance pair with the same
2075
identity key and convert the INSERT/DELETE to a single UPDATE<a class="changeset-link reference internal" href="#change-69a48fb25de0e1cd620693a836968e3d">(link)</a><p></p>
2076
</p>
2077
</li>
2078
<li><p id="change-0.3.0-10"><span class="target" id="change-9741ba8323c434593dbd85ae32233bba"><strong>[orm] </strong></span>“association” mappings simplified to take advantage of
2079
automatic “row switch” feature<a class="changeset-link reference internal" href="#change-9741ba8323c434593dbd85ae32233bba">(link)</a><p></p>
2080
</p>
2081
</li>
2082
<li><p id="change-0.3.0-11"><span class="target" id="change-f970db37c47df342ea626e5d34c33557"><strong>[orm] </strong></span>“custom list classes” is now implemented via the “collection_class”
2083
keyword argument to relation(). the old way still works but is
2084
deprecated<a class="changeset-link reference internal" href="#change-f970db37c47df342ea626e5d34c33557">(link)</a><p> <a class="reference external" href="http://www.sqlalchemy.org/trac/ticket/212">#212</a></p>
2085
</p>
2086
</li>
2087
<li><p id="change-0.3.0-12"><span class="target" id="change-0b4f7934178b19d2f4198f972fa48af0"><strong>[orm] </strong></span>added “viewonly” flag to relation(), allows construction of
2088
relations that have no effect on the flush() process.<a class="changeset-link reference internal" href="#change-0b4f7934178b19d2f4198f972fa48af0">(link)</a><p></p>
2089
</p>
2090
</li>
2091
<li><p id="change-0.3.0-13"><span class="target" id="change-89e8bd4b5f78c821a2184eda9d0b4596"><strong>[orm] </strong></span>added “lockmode” argument to base Query select/get functions,
2092
including “with_lockmode” function to get a Query copy that has
2093
a default locking mode. Will translate “read”/”update”
2094
arguments into a for_update argument on the select side.<a class="changeset-link reference internal" href="#change-89e8bd4b5f78c821a2184eda9d0b4596">(link)</a><p> <a class="reference external" href="http://www.sqlalchemy.org/trac/ticket/292">#292</a></p>
2095
</p>
2096
</li>
2097
<li><p id="change-0.3.0-14"><span class="target" id="change-0e58e5ab6f48202b49a15d78dac03244"><strong>[orm] </strong></span>implemented “version check” logic in Query/Mapper, used
2098
when version_id_col is in effect and query.with_lockmode()
2099
is used to get() an instance thats already loaded<a class="changeset-link reference internal" href="#change-0e58e5ab6f48202b49a15d78dac03244">(link)</a><p></p>
2100
</p>
2101
</li>
2102
<li><p id="change-0.3.0-15"><span class="target" id="change-db567762bd8f003f9bf446dc80e93356"><strong>[orm] </strong></span>post_update behavior improved; does a better job at not
2103
updating too many rows, updates only required columns<a class="changeset-link reference internal" href="#change-db567762bd8f003f9bf446dc80e93356">(link)</a><p> <a class="reference external" href="http://www.sqlalchemy.org/trac/ticket/208">#208</a></p>
2104
</p>
2105
</li>
2106
<li><p id="change-0.3.0-16"><span class="target" id="change-ed17766eeb0f7e0ffae4b5a8d65e19ba"><strong>[orm] </strong></span>adjustments to eager loading so that its “eager chain” is
2107
kept separate from the normal mapper setup, thereby
2108
preventing conflicts with lazy loader operation, fixes<a class="changeset-link reference internal" href="#change-ed17766eeb0f7e0ffae4b5a8d65e19ba">(link)</a><p> <a class="reference external" href="http://www.sqlalchemy.org/trac/ticket/308">#308</a></p>
2109
</p>
2110
</li>
2111
<li><p id="change-0.3.0-17"><span class="target" id="change-49870ec4b2e0423340358dea26b3babf"><strong>[orm] </strong></span>fix to deferred group loading<a class="changeset-link reference internal" href="#change-49870ec4b2e0423340358dea26b3babf">(link)</a><p></p>
2112
</p>
2113
</li>
2114
<li><p id="change-0.3.0-18"><span class="target" id="change-9b6964ae2926bcd79206eacf3b9f3cfd"><strong>[orm] </strong></span>session.flush() wont close a connection it opened<a class="changeset-link reference internal" href="#change-9b6964ae2926bcd79206eacf3b9f3cfd">(link)</a><p> <a class="reference external" href="http://www.sqlalchemy.org/trac/ticket/346">#346</a></p>
2115
</p>
2116
</li>
2117
<li><p id="change-0.3.0-19"><span class="target" id="change-805e0f356e88803a0f83d386731283b0"><strong>[orm] </strong></span>added “batch=True” flag to mapper; if False, save_obj
2118
will fully save one object at a time including calls
2119
to before_XXXX and after_XXXX<a class="changeset-link reference internal" href="#change-805e0f356e88803a0f83d386731283b0">(link)</a><p></p>
2120
</p>
2121
</li>
2122
<li><p id="change-0.3.0-20"><span class="target" id="change-f2876d14278453a3a9e07c35b3fc23d6"><strong>[orm] </strong></span>added “column_prefix=None” argument to mapper; prepends the
2123
given string (typically ‘_’) to column-based attributes automatically
2124
set up from the mapper’s Table<a class="changeset-link reference internal" href="#change-f2876d14278453a3a9e07c35b3fc23d6">(link)</a><p></p>
2125
</p>
2126
</li>
2127
<li><p id="change-0.3.0-21"><span class="target" id="change-84a0aa83db4fbe7fa685c9586be1c4ec"><strong>[orm] </strong></span>specifying joins in the from_obj argument of query.select() will
2128
replace the main table of the query, if the table is somewhere within
2129
the given from_obj. this makes it possible to produce custom joins and
2130
outerjoins in queries without the main table getting added twice.<a class="changeset-link reference internal" href="#change-84a0aa83db4fbe7fa685c9586be1c4ec">(link)</a><p> <a class="reference external" href="http://www.sqlalchemy.org/trac/ticket/315">#315</a></p>
2131
</p>
2132
</li>
2133
<li><p id="change-0.3.0-22"><span class="target" id="change-ccb145193bd44d06f18079179309f197"><strong>[orm] </strong></span>eagerloading is adjusted to more thoughtfully attach its LEFT OUTER JOINs
2134
to the given query, looking for custom “FROM” clauses that may have
2135
already been set up.<a class="changeset-link reference internal" href="#change-ccb145193bd44d06f18079179309f197">(link)</a><p></p>
2136
</p>
2137
</li>
2138
<li><p id="change-0.3.0-23"><span class="target" id="change-63a7d34aabebf51b4547b9939aee9ea7"><strong>[orm] </strong></span>added join_to and outerjoin_to transformative methods to SelectResults,
2139
to build up join/outerjoin conditions based on property names. also
2140
added select_from to explicitly set from_obj parameter.<a class="changeset-link reference internal" href="#change-63a7d34aabebf51b4547b9939aee9ea7">(link)</a><p></p>
2141
</p>
2142
</li>
2143
<li><p id="change-0.3.0-24"><span class="target" id="change-c1c88b8cfd3e533c3299e6380b4c2363"><strong>[orm] </strong></span>removed “is_primary” flag from mapper.<a class="changeset-link reference internal" href="#change-c1c88b8cfd3e533c3299e6380b4c2363">(link)</a><p></p>
2144
</p>
2145
</li>
2146
</ul>
2147
</div>
2148
<div class="section" id="change-0.3.0-sql">
2149
<h3>sql<a class="headerlink" href="#change-0.3.0-sql" title="Permalink to this headline">¶</a></h3>
2150
<ul class="simple">
2151
<li><p id="change-0.3.0-25"><span class="target" id="change-e5f40f680103943b465258a215ef6f9e"><strong>[sql] [construction] </strong></span>changed “for_update” parameter to accept False/True/”nowait”
2152
and “read”, the latter two of which are interpreted only by
2153
Oracle and Mysql<a class="changeset-link reference internal" href="#change-e5f40f680103943b465258a215ef6f9e">(link)</a><p> <a class="reference external" href="http://www.sqlalchemy.org/trac/ticket/292">#292</a></p>
2154
</p>
2155
</li>
2156
<li><p id="change-0.3.0-26"><span class="target" id="change-3abbda64974ee3c2264a57b840bd8421"><strong>[sql] [construction] </strong></span>added extract() function to sql dialect
2157
(SELECT extract(field FROM expr))<a class="changeset-link reference internal" href="#change-3abbda64974ee3c2264a57b840bd8421">(link)</a><p></p>
2158
</p>
2159
</li>
2160
<li><p id="change-0.3.0-27"><span class="target" id="change-121c9f650291edb4ca7b8ffa8139c66b"><strong>[sql] [construction] </strong></span>BooleanExpression includes new “negate” argument to specify
2161
the appropriate negation operator if one is available.<a class="changeset-link reference internal" href="#change-121c9f650291edb4ca7b8ffa8139c66b">(link)</a><p></p>
2162
</p>
2163
</li>
2164
<li><p id="change-0.3.0-28"><span class="target" id="change-9350ceaebf6175edafc4765a8f79bd9b"><strong>[sql] [construction] </strong></span>calling a negation on an “IN” or “IS” clause will result in
2165
“NOT IN”, “IS NOT” (as opposed to NOT (x IN y)).<a class="changeset-link reference internal" href="#change-9350ceaebf6175edafc4765a8f79bd9b">(link)</a><p></p>
2166
</p>
2167
</li>
2168
<li><p id="change-0.3.0-29"><span class="target" id="change-22c4e15de46bb1d96abbdf555f8dc4a7"><strong>[sql] [construction] </strong></span>Function objects know what to do in a FROM clause now. their
2169
behavior should be the same, except now you can also do things like
2170
select([‘*’], from_obj=[func.my_function()]) to get multiple
2171
columns from the result, or even use sql.column() constructs to name the
2172
return columns<a class="changeset-link reference internal" href="#change-22c4e15de46bb1d96abbdf555f8dc4a7">(link)</a><p> <a class="reference external" href="http://www.sqlalchemy.org/trac/ticket/172">#172</a></p>
2173
</p>
2174
</li>
2175
</ul>
2176
</div>
2177
<div class="section" id="change-0.3.0-schema">
2178
<h3>schema<a class="headerlink" href="#change-0.3.0-schema" title="Permalink to this headline">¶</a></h3>
2179
<ul class="simple">
2180
<li><p id="change-0.3.0-30"><span class="target" id="change-4df510b9c3361af772c20d1ad5825ea4"><strong>[schema] </strong></span>a fair amount of cleanup to the schema package, removal of ambiguous
2181
methods, methods that are no longer needed. slightly more constrained
2182
useage, greater emphasis on explicitness<a class="changeset-link reference internal" href="#change-4df510b9c3361af772c20d1ad5825ea4">(link)</a><p></p>
2183
</p>
2184
</li>
2185
<li><p id="change-0.3.0-31"><span class="target" id="change-7e3d79a0f25e4a5cfff24316d2cf0887"><strong>[schema] </strong></span>the “primary_key” attribute of Table and other selectables becomes
2186
a setlike ColumnCollection object; is ordered but not numerically
2187
indexed. a comparison clause between two pks that are derived from the
2188
same underlying tables (i.e. such as two Alias objects) can be generated
2189
via table1.primary_key==table2.primary_key<a class="changeset-link reference internal" href="#change-7e3d79a0f25e4a5cfff24316d2cf0887">(link)</a><p></p>
2190
</p>
2191
</li>
2192
<li><p id="change-0.3.0-32"><span class="target" id="change-1f5f61d9a455f45e8e7957b4a802259c"><strong>[schema] </strong></span>ForeignKey(Constraint) supports “use_alter=True”, to create/drop a foreign key
2193
via ALTER. this allows circular foreign key relationships to be set up.<a class="changeset-link reference internal" href="#change-1f5f61d9a455f45e8e7957b4a802259c">(link)</a><p></p>
2194
</p>
2195
</li>
2196
<li><p id="change-0.3.0-33"><span class="target" id="change-07dabb3b17789490c2f1f3c1325d7f94"><strong>[schema] </strong></span>append_item() methods removed from Table and Column; preferably
2197
construct Table/Column/related objects inline, but if needed use
2198
append_column(), append_foreign_key(), append_constraint(), etc.<a class="changeset-link reference internal" href="#change-07dabb3b17789490c2f1f3c1325d7f94">(link)</a><p></p>
2199
</p>
2200
</li>
2201
<li><p id="change-0.3.0-34"><span class="target" id="change-9297cc5781aef837ddcf8a66d489adac"><strong>[schema] </strong></span>table.create() no longer returns the Table object, instead has no
2202
return value. the usual case is that tables are created via metadata,
2203
which is preferable since it will handle table dependencies.<a class="changeset-link reference internal" href="#change-9297cc5781aef837ddcf8a66d489adac">(link)</a><p></p>
2204
</p>
2205
</li>
2206
<li><p id="change-0.3.0-35"><span class="target" id="change-96cef28bc60b163b11d7748202f7927d"><strong>[schema] </strong></span>added UniqueConstraint (goes at Table level), CheckConstraint
2207
(goes at Table or Column level).<a class="changeset-link reference internal" href="#change-96cef28bc60b163b11d7748202f7927d">(link)</a><p></p>
2208
</p>
2209
</li>
2210
<li><p id="change-0.3.0-36"><span class="target" id="change-f11c7c40de054e42f985d34823335728"><strong>[schema] </strong></span>index=False/unique=True on Column now creates a UniqueConstraint,
2211
index=True/unique=False creates a plain Index,
2212
index=True/unique=True on Column creates a unique Index. ‘index’
2213
and ‘unique’ keyword arguments to column are now boolean only; for
2214
explcit names and groupings of indexes or unique constraints, use the
2215
UniqueConstraint/Index constructs explicitly.<a class="changeset-link reference internal" href="#change-f11c7c40de054e42f985d34823335728">(link)</a><p></p>
2216
</p>
2217
</li>
2218
<li><p id="change-0.3.0-37"><span class="target" id="change-504cbc530860d0c4286f50b29cc1df63"><strong>[schema] </strong></span>added autoincrement=True to Column; will disable schema generation
2219
of SERIAL/AUTO_INCREMENT/identity seq for postgres/mysql/mssql if
2220
explicitly set to False<a class="changeset-link reference internal" href="#change-504cbc530860d0c4286f50b29cc1df63">(link)</a><p></p>
2221
</p>
2222
</li>
2223
<li><p id="change-0.3.0-38"><span class="target" id="change-c835aa697ef27bc1779955d5c07a05f1"><strong>[schema] </strong></span>TypeEngine objects now have methods to deal with copying and comparing
2224
values of their specific type. Currently used by the ORM, see below.<a class="changeset-link reference internal" href="#change-c835aa697ef27bc1779955d5c07a05f1">(link)</a><p></p>
2225
</p>
2226
</li>
2227
<li><p id="change-0.3.0-39"><span class="target" id="change-935239bc03f9354863c60df9010bef03"><strong>[schema] </strong></span>fixed condition that occurred during reflection when a primary key
2228
column was explciitly overridden, where the PrimaryKeyConstraint would
2229
get both the reflected and the programmatic column doubled up<a class="changeset-link reference internal" href="#change-935239bc03f9354863c60df9010bef03">(link)</a><p></p>
2230
</p>
2231
</li>
2232
<li><p id="change-0.3.0-40"><span class="target" id="change-fed9bf9740d5a682cebb46515151e5c0"><strong>[schema] </strong></span>the “foreign_key” attribute on Column and ColumnElement in general
2233
is deprecated, in favor of the “foreign_keys” list/set-based attribute,
2234
which takes into account multiple foreign keys on one column.
2235
“foreign_key” will return the first element in the “foreign_keys” list/set
2236
or None if the list is empty.<a class="changeset-link reference internal" href="#change-fed9bf9740d5a682cebb46515151e5c0">(link)</a><p></p>
2237
</p>
2238
</li>
2239
</ul>
2240
</div>
2241
<div class="section" id="change-0.3.0-sqlite">
2242
<h3>sqlite<a class="headerlink" href="#change-0.3.0-sqlite" title="Permalink to this headline">¶</a></h3>
2243
<ul class="simple">
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<li><p id="change-0.3.0-41"><span class="target" id="change-73aea24b040bca4e9965ccbb6e349046"><strong>[sqlite] </strong></span>sqlite boolean datatype converts False/True to 0/1 by default<a class="changeset-link reference internal" href="#change-73aea24b040bca4e9965ccbb6e349046">(link)</a><p></p>
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</p>
2246
</li>
2247
<li><p id="change-0.3.0-42"><span class="target" id="change-2f2f6303c04b763ae32a23ad61552cf4"><strong>[sqlite] </strong></span>fixes to Date/Time (SLDate/SLTime) types; works as good as postgres
2248
now<a class="changeset-link reference internal" href="#change-2f2f6303c04b763ae32a23ad61552cf4">(link)</a><p> <a class="reference external" href="http://www.sqlalchemy.org/trac/ticket/335">#335</a></p>
2249
</p>
2250
</li>
2251
</ul>
2252
</div>
2253
<div class="section" id="change-0.3.0-oracle">
2254
<h3>oracle<a class="headerlink" href="#change-0.3.0-oracle" title="Permalink to this headline">¶</a></h3>
2255
<ul class="simple">
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<li><p id="change-0.3.0-43"><span class="target" id="change-2a9e63a93ef8e8feadccbfb766be4727"><strong>[oracle] </strong></span>Oracle has experimental support for cx_Oracle.TIMESTAMP, which requires
2257
a setinputsizes() call on the cursor that is now enabled via the
2258
‘auto_setinputsizes’ flag to the oracle dialect.<a class="changeset-link reference internal" href="#change-2a9e63a93ef8e8feadccbfb766be4727">(link)</a><p></p>
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</p>
2260
</li>
2261
</ul>
2262
</div>
2263
<div class="section" id="change-0.3.0-firebird">
2264
<h3>firebird<a class="headerlink" href="#change-0.3.0-firebird" title="Permalink to this headline">¶</a></h3>
2265
<ul class="simple">
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<li><p id="change-0.3.0-44"><span class="target" id="change-a1b63a91c9fe5f9b5cae296b49617e99"><strong>[firebird] </strong></span>aliases do not use “AS”<a class="changeset-link reference internal" href="#change-a1b63a91c9fe5f9b5cae296b49617e99">(link)</a><p></p>
2267
</p>
2268
</li>
2269
<li><p id="change-0.3.0-45"><span class="target" id="change-d6929c3d1968bd8c70fc395ea5abac4e"><strong>[firebird] </strong></span>correctly raises NoSuchTableError when reflecting non-existent table<a class="changeset-link reference internal" href="#change-d6929c3d1968bd8c70fc395ea5abac4e">(link)</a><p></p>
2270
</p>
2271
</li>
2272
</ul>
2273
</div>
2274
<div class="section" id="change-0.3.0-misc">
2275
<h3>misc<a class="headerlink" href="#change-0.3.0-misc" title="Permalink to this headline">¶</a></h3>
2276
<ul class="simple">
2277
<li><p id="change-0.3.0-46"><span class="target" id="change-fce7c38172fd247996365a12bbad8a3c"><strong>[ms-sql] </strong></span>fixes bug 261 (table reflection broken for MS-SQL case-sensitive
2278
databases)<a class="changeset-link reference internal" href="#change-fce7c38172fd247996365a12bbad8a3c">(link)</a><p></p>
2279
</p>
2280
</li>
2281
<li><p id="change-0.3.0-47"><span class="target" id="change-5c03c1b73b7683cc5c95d8f6dcbff900"><strong>[ms-sql] </strong></span>can now specify port for pymssql<a class="changeset-link reference internal" href="#change-5c03c1b73b7683cc5c95d8f6dcbff900">(link)</a><p></p>
2282
</p>
2283
</li>
2284
<li><p id="change-0.3.0-48"><span class="target" id="change-d61a87077e1d1c9fa96868d8e8805a87"><strong>[ms-sql] </strong></span>introduces new “auto_identity_insert” option for auto-switching
2285
between “SET IDENTITY_INSERT” mode when values specified for IDENTITY columns<a class="changeset-link reference internal" href="#change-d61a87077e1d1c9fa96868d8e8805a87">(link)</a><p></p>
2286
</p>
2287
</li>
2288
<li><p id="change-0.3.0-49"><span class="target" id="change-b7bc176c6d0fced17db9766f866ca8d9"><strong>[ms-sql] </strong></span>now supports multi-column foreign keys<a class="changeset-link reference internal" href="#change-b7bc176c6d0fced17db9766f866ca8d9">(link)</a><p></p>
2289
</p>
2290
</li>
2291
<li><p id="change-0.3.0-50"><span class="target" id="change-f2463d5087105bc305f2098f3a932ea4"><strong>[ms-sql] </strong></span>fix to reflecting date/datetime columns<a class="changeset-link reference internal" href="#change-f2463d5087105bc305f2098f3a932ea4">(link)</a><p></p>
2292
</p>
2293
</li>
2294
<li><p id="change-0.3.0-51"><span class="target" id="change-b0212da21088f78c1fb2b5c69f08802a"><strong>[ms-sql] </strong></span>NCHAR and NVARCHAR type support added<a class="changeset-link reference internal" href="#change-b0212da21088f78c1fb2b5c69f08802a">(link)</a><p></p>
2295
</p>
2296
</li>
2297
<li><p id="change-0.3.0-52"><span class="target" id="change-784d08fb847e35d6d1df60cc5b77a74c"><strong>[connections/pooling/execution] </strong></span>connection pool tracks open cursors and automatically closes them
2298
if connection is returned to pool with cursors still opened. Can be
2299
affected by options which cause it to raise an error instead, or to
2300
do nothing. fixes issues with MySQL, others<a class="changeset-link reference internal" href="#change-784d08fb847e35d6d1df60cc5b77a74c">(link)</a><p></p>
2301
</p>
2302
</li>
2303
<li><p id="change-0.3.0-53"><span class="target" id="change-e20535e655cd212df3c56a61f9fc778f"><strong>[connections/pooling/execution] </strong></span>fixed bug where Connection wouldnt lose its Transaction
2304
after commit/rollback<a class="changeset-link reference internal" href="#change-e20535e655cd212df3c56a61f9fc778f">(link)</a><p></p>
2305
</p>
2306
</li>
2307
<li><p id="change-0.3.0-54"><span class="target" id="change-f646180e65ac4eacb62bc3ff6b69286e"><strong>[connections/pooling/execution] </strong></span>added scalar() method to ComposedSQLEngine, ResultProxy<a class="changeset-link reference internal" href="#change-f646180e65ac4eacb62bc3ff6b69286e">(link)</a><p></p>
2308
</p>
2309
</li>
2310
<li><p id="change-0.3.0-55"><span class="target" id="change-1753263c929a352b09f567f6469bcbe3"><strong>[connections/pooling/execution] </strong></span>ResultProxy will close() the underlying cursor when the ResultProxy
2311
itself is closed. this will auto-close cursors for ResultProxy objects
2312
that have had all their rows fetched (or had scalar() called).<a class="changeset-link reference internal" href="#change-1753263c929a352b09f567f6469bcbe3">(link)</a><p></p>
2313
</p>
2314
</li>
2315
<li><p id="change-0.3.0-56"><span class="target" id="change-8b8beaee4be0988cd69dfbdb5a8603e0"><strong>[connections/pooling/execution] </strong></span>ResultProxy.fetchall() internally uses DBAPI fetchall() for better efficiency,
2316
added to mapper iteration as well (courtesy Michael Twomey)<a class="changeset-link reference internal" href="#change-8b8beaee4be0988cd69dfbdb5a8603e0">(link)</a><p></p>
2317
</p>
2318
</li>
2319
</ul>
2320
</div>
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</div>
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</div>
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</div>
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</div>
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