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<title>SQLite Release 3.7.4 On 2010 December 08 (3.7.4)</title>
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<h2>SQLite Release 3.7.4 On 2010 December 08 (3.7.4)</h2><p><ul>
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<li> Added the <a href="../c3ref/blob_reopen.html">sqlite3_blob_reopen()</a> interface to allow an existing
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<a href="../c3ref/blob.html">sqlite3_blob</a> object to be rebound to a new row.
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<li> Use the new <a href="../c3ref/blob_reopen.html">sqlite3_blob_reopen()</a> interface to improve the performance
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<li> <a href="../c3ref/vfs.html">VFSes</a> that do not support shared memory are allowed
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to access <a href="../wal.html">WAL</a> databases if <a href="../pragma.html#pragma_locking_mode">PRAGMA locking_mode</a> is set to EXCLUSIVE.
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<li> Enhancements to <a href="../eqp.html">EXPLAIN QUERY PLAN</a>.
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<li> Added the <a href="../c3ref/stmt_readonly.html">sqlite3_stmt_readonly()</a> interface.
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<li> Added <a href="../pragma.html#pragma_checkpoint_fullfsync">PRAGMA checkpoint_fullfsync</a>.
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<li> Added the <a href="../c3ref/c_fcntl_chunk_size.html#sqlitefcntlfilepointer">SQLITE_FCNTL_FILE_POINTER</a> option
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to <a href="../c3ref/file_control.html">sqlite3_file_control()</a>.
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<li> Added support for <a href="../fts3.html#fts4">FTS4</a> and enhancements
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to the FTS <a href="../fts3.html#matchinfo">matchinfo()</a> function.
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<li> Added the test_superlock.c module which provides example
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code for obtaining an exclusive lock to a rollback
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<li> Added the test_multiplex.c module which provides
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an example VFS that provides multiplexing (sharding)
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of a DB, splitting it over multiple files of fixed size.
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<li> A <a href="http://www.sqlite.org/src/info/80ba201079">very obscure bug</a>
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associated with the <a href="../optoverview.html#or_opt">or optimization</a> was fixed.
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<p>A <a href="../changes.html">complete list of SQLite releases</a>
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in a single page is also available. A detailed history of every
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check-in is available at
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<a href="http://www.sqlite.org/src/timeline">
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http://www.sqlite.org/src/timeline</a>.</p>