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Release: <span class="version-num">0.9.6</span> | Release Date: June 23, 2014
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<li><a class="reference internal" href="#">0.4 Changelog</a><ul>
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<div class="section" id="changelog">
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transaction directly to the parent of the transaction
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that could be rolled back to. Now it rolls back the next
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transaction up that can handle it, but sets the current
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transaction to it’s parent and inactivates the
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transaction to its parent and inactivates the
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transactions in between. Inactive transactions can only
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be rolled back or closed, any other call results in an
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<li>autoflush for commit() wasn’t flushing for simple
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subtransactions.</li>
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<li>unitofwork flush didn’t close the failed transaction
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when the session was not in a transaction and commiting
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when the session was not in a transaction and committing
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the transaction failed.</li>
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<ul class="simple">
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<li><p id="change-0.4.3-40"><span class="target" id="change-f63c306a189efd4f901b963ab28adb1f"><strong>[dialects] </strong></span>Better support for schemas in SQLite (linked in by ATTACH
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DATABASE ... AS name). In some cases in the past, schema
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names were ommitted from generated SQL for SQLite. This is
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names were omitted from generated SQL for SQLite. This is
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no longer the case.<a class="changeset-link headerlink reference internal" href="#change-f63c306a189efd4f901b963ab28adb1f">¶</a><p></p>
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etc., are also no longer imported into your namespace<a class="changeset-link headerlink reference internal" href="#change-2663410f9071b570a253c86fb4d09031">¶</a><p></p>
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<li><p id="change-0.4.0beta4-3"><span class="target" id="change-dca15652477c49266ba58637beea290e"></span>The ‘Smallinteger’ compatiblity name (small i!) is no longer imported,
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<li><p id="change-0.4.0beta4-3"><span class="target" id="change-487de14a19636219ee9867528df4aee5"></span>The ‘Smallinteger’ compatibility name (small i!) is no longer imported,
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but remains in schema.py for now. SmallInteger (big I!) is still
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imported.<a class="changeset-link headerlink reference internal" href="#change-dca15652477c49266ba58637beea290e">¶</a><p></p>
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imported.<a class="changeset-link headerlink reference internal" href="#change-487de14a19636219ee9867528df4aee5">¶</a><p></p>
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<li><p id="change-0.4.0beta4-4"><span class="target" id="change-8b98efdb7b0519850778b7118b3c2e6d"></span>The connection pool uses a “threadlocal” strategy internally to return
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<li><p id="change-0.4.0beta1-11"><span class="target" id="change-1693eadbe7a1e73418dc29c3c9f5f383"><strong>[orm] </strong></span>Class-level properties are now usable as query elements... no more
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‘.c.’! “Class.c.propname” is now superceded by “Class.propname”. All
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‘.c.’! “Class.c.propname” is now superseded by “Class.propname”. All
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clause operators are supported, as well as higher level operators such
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as Class.prop==<some instance> for scalar attributes,
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Class.prop.contains(<some instance>) and Class.prop.any(<some
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query.get() clauses, etc. and act as though they are regular single-column
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scalars... except they’re not! Use the function composite(cls, *columns)
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inside of the mapper’s “properties” dict, and instances of cls will be
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created/mapped to a single attribute, comprised of the values correponding
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created/mapped to a single attribute, comprised of the values corresponding
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to *columns.<a class="changeset-link headerlink reference internal" href="#change-3ee39648a350e0ce7f6e88a460ef4222">¶</a><p>References: <a class="reference external" href="http://www.sqlalchemy.org/trac/ticket/211">#211</a></p>
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<li><p id="change-0.4.0beta1-33"><span class="target" id="change-8b14a583258b389d8befb88ffab4616e"><strong>[orm] </strong></span>Joined-table inheritance will now generate the primary key columns of all
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inherited classes against the root table of the join only. This implies
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that each row in the root table is distinct to a single instance. If for
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some rare reason this is not desireable, explicit primary_key settings on
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some rare reason this is not desirable, explicit primary_key settings on
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individual mappers will override it.<a class="changeset-link headerlink reference internal" href="#change-8b14a583258b389d8befb88ffab4616e">¶</a><p></p>
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<h3>sql<a class="headerlink" href="#change-0.4.0beta1-sql" title="Permalink to this headline">¶</a></h3>
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<ul class="simple">
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<li><p id="change-0.4.0beta1-40"><span class="target" id="change-194d03e759795cb2ff68bbe9af23b306"><strong>[sql] </strong></span>Speed! Clause compilation as well as the mechanics of SQL constructs have
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been streamlined and simplified to a signficant degree, for a 20-30%
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been streamlined and simplified to a significant degree, for a 20-30%
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improvement of the statement construction/compilation overhead of 0.3.<a class="changeset-link headerlink reference internal" href="#change-194d03e759795cb2ff68bbe9af23b306">¶</a><p></p>
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<li><p id="change-0.4.0beta1-42"><span class="target" id="change-52f227bbb5a90b801adc6ecfd0cc6e3a"><strong>[sql] </strong></span>case_sensitive=(True|False) setting removed from schema items, since
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checking this state added a lot of method call overhead and there was no
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decent reason to ever set it to False. Table and column names which are
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all lower case will be treated as case-insenstive (yes we adjust for
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all lower case will be treated as case-insensitive (yes we adjust for
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Oracle’s UPPERCASE style too).<a class="changeset-link headerlink reference internal" href="#change-52f227bbb5a90b801adc6ecfd0cc6e3a">¶</a><p></p>
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<ul class="simple">
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<li><p id="change-0.4.0beta1-48"><span class="target" id="change-cf0060d4bbf9e676c4a7c5beb5f02382"><strong>[oracle] </strong></span>Very rudimental support for OUT parameters added; use sql.outparam(name,
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type) to set up an OUT parameter, just like bindparam(); after execution,
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values are avaiable via result.out_parameters dictionary.<a class="changeset-link headerlink reference internal" href="#change-cf0060d4bbf9e676c4a7c5beb5f02382">¶</a><p>References: <a class="reference external" href="http://www.sqlalchemy.org/trac/ticket/507">#507</a></p>
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values are available via result.out_parameters dictionary.<a class="changeset-link headerlink reference internal" href="#change-cf0060d4bbf9e676c4a7c5beb5f02382">¶</a><p>References: <a class="reference external" href="http://www.sqlalchemy.org/trac/ticket/507">#507</a></p>
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