151 lines
6.7 KiB
HTML
151 lines
6.7 KiB
HTML
<!DOCTYPE html>
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<html><head>
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<meta name="viewport" content="width=device-width, initial-scale=1.0">
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<meta http-equiv="content-type" content="text/html; charset=UTF-8">
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<link href="../sqlite.css" rel="stylesheet">
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<title>SQLite Release 3.9.0 On 2015-10-14</title>
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<!-- path=../ -->
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</head>
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<body>
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<div class=nosearch>
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<a href="../index.html">
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<img class="logo" src="../images/sqlite370_banner.gif" alt="SQLite" border="0">
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</a>
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<div><!-- IE hack to prevent disappearing logo --></div>
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<div class="tagline desktoponly">
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Small. Fast. Reliable.<br>Choose any three.
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</div>
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<div class="menu mainmenu">
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<ul>
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<li><a href="../index.html">Home</a>
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<li class='desktoponly'><a href="../docs.html">Documentation</a>
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<li><a href='../about.html'>About</a>
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<li><a href='../docs.html'>Documentation</a>
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<li><a href='../download.html'>Download</a>
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<li><a href='../support.html'>Support</a>
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<li><a href='../prosupport.html'>Purchase</a>
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<option value="d">Search Documentation</option>
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<option value="c">Search Changelog</option>
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</div>
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<h2>SQLite Release 3.9.0 On 2015-10-14</h2><p><ol class='lessindent'>
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<p><b>Policy Changes:</b>
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<li>The <a href="../versionnumbers.html">version numbering conventions</a> for SQLite are revised to use the
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emerging standard of <a href="http://semver.org/">semantic versioning</a>.
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<p><b>New Features And Enhancements:</b>
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<li>Added <a href="../json1.html">the json1 extension</a> module in the source tree, and in the <a href="../amalgamation.html">amalgamation</a>.
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Enable support using the <a href="../compile.html#enable_json1">SQLITE_ENABLE_JSON1</a> compile-time option.
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<li>Added <a href="../fts5.html">Full Text Search version 5 (FTS5)</a> to the <a href="../amalgamation.html">amalgamation</a>, enabled
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using <a href="../compile.html#enable_fts5">SQLITE_ENABLE_FTS5</a>. FTS5 will be considered "experimental" (subject
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to incompatible changes) for at least one more release cycle.
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<li>The <a href="../lang_createview.html">CREATE VIEW</a> statement now accepts an optional list of
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column names following the view name.
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<li>Added support for <a href="../expridx.html">indexes on expressions</a>.
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<li>Added support for <a href="../vtab.html#tabfunc2">table-valued functions</a> in the FROM clause of a
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<a href="../lang_select.html">SELECT</a> statement.
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<li>Added support for <a href="../vtab.html#epovtab">eponymous virtual tables</a>.
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<li>A <a href="../lang_createview.html">VIEW</a> may now reference undefined tables and functions when
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initially created. Missing tables and functions are reported when
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the VIEW is used in a query.
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<li>Added the <a href="../c3ref/value_subtype.html">sqlite3_value_subtype()</a> and <a href="../c3ref/result_subtype.html">sqlite3_result_subtype()</a>
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interfaced (used by <a href="../json1.html">the json1 extension</a>).
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<li>The query planner is now able to use <a href="../partialindex.html">partial indexes</a> that contain
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AND-connected terms in the WHERE clause.
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<li>The sqlite3_analyzer.exe utility is updated to report the depth of
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each btree and to show the average fanout for indexes and
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WITHOUT ROWID tables.
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<li>Enhanced the <a href="../dbstat.html">dbstat virtual table</a> so that it can be used as a
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<a href="../vtab.html#tabfunc2">table-valued function</a> where the argument is the schema to be
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analyzed.
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<p><b>Other changes:</b>
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<li>The <a href="../c3ref/aggregate_count.html">sqlite3_memory_alarm()</a> interface, which has been deprecated and
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undocumented for 8 years, is changed into a no-op.
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<p><b>Important fixes:</b>
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<li>Fixed a critical bug in the
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<a href="https://www.sqlite.org/see/doc/trunk/www/readme.wiki">SQLite Encryption Extension</a> that
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could cause the database to become unreadable and unrecoverable if a <a href="../lang_vacuum.html">VACUUM</a> command
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changed the size of the encryption nonce.
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<li>Added a memory barrier in the implementation of
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<a href="../c3ref/initialize.html">sqlite3_initialize()</a> to help ensure that it is thread-safe.
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<li>Fix the <a href="../optoverview.html#or_opt">OR optimization</a> so that it always ignores subplans that
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do not use an index.
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<li>Do not apply the WHERE-clause pushdown optimization on terms that originate
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in the ON or USING clause of a LEFT JOIN. Fix for ticket
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<a href="https://www.sqlite.org/src/info/c2a19d81652f40568c">c2a19d81652f40568c</a>.
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<li>SQLITE_SOURCE_ID: "2015-10-14 12:29:53 a721fc0d89495518fe5612e2e3bbc60befd2e90d"
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<li>SHA1 for sqlite3.c: c03e47e152ddb9c342b84ffb39448bf4a2bd4288
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</ol></p>
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<p>A <a href="../changes.html">complete list of SQLite releases</a>
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in a single page and a <a href="../chronology.html">chronology</a> are both also available.
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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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SQLite version control site</a>.</p>
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