153 lines
7.4 KiB
HTML
153 lines
7.4 KiB
HTML
<!DOCTYPE html>
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<title>SQLite Release 3.18.1 On 2017-06-16</title>
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</head>
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<body>
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Small. Fast. Reliable.<br>Choose any three.
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<h2>SQLite Release 3.18.1 On 2017-06-16</h2><p><b>Changes in version 3.18.0 (2017-03-30):</b></p>
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<p><ol class='lessindent'>
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<li value='1'>Added the <a href="../pragma.html#pragma_optimize">PRAGMA optimize</a> command
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<li>The SQLite version identifier returned by the <a href="../lang_corefunc.html#sqlite_source_id">sqlite_source_id()</a> SQL function
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and the <a href="../c3ref/libversion.html">sqlite3_sourceid()</a> C API and found in the <a href="../c3ref/c_source_id.html">SQLITE_SOURCE_ID</a> macro is
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now a 64-digit SHA3-256 hash instead of a 40-digit SHA1 hash.
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<li>Added the <a href="../json1.html#jpatch">json_patch()</a> SQL function to the <a href="../json1.html">JSON1 extension</a>.
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<li>Enhance the <a href="../optoverview.html#like_opt">LIKE optimization</a> so that it works for arbitrary expressions on
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the left-hand side as long as the LIKE pattern on the right-hand side does not
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begin with a digit or minus sign.
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<li>Added the <a href="../c3ref/set_last_insert_rowid.html">sqlite3_set_last_insert_rowid()</a> interface and use the new interface in
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the <a href="../fts3.html">FTS3</a>, <a href="../fts3.html#fts4">FTS4</a>, and <a href="../fts5.html">FTS5</a> extensions to ensure that the <a href="../c3ref/last_insert_rowid.html">sqlite3_last_insert_rowid()</a>
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interface always returns reasonable values.
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<li>Enhance <a href="../pragma.html#pragma_integrity_check">PRAGMA integrity_check</a> and <a href="../pragma.html#pragma_quick_check">PRAGMA quick_check</a> so that they verify
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<a href="../lang_createtable.html#ckconst">CHECK constraints</a>.
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<li>Enhance the query plans for joins to detect empty tables early and
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halt without doing unnecessary work.
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<li>Enhance the <a href="../c3ref/mprintf.html">sqlite3_mprintf()</a> family of interfaces and the <a href="../lang_corefunc.html#printf">printf SQL function</a>
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to put comma separators at the thousands marks for integers, if the "," format modifier
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is used in between the "%" and the "d" (example: "%,d").
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<li>Added the -D<a href="../compile.html#max_memory">SQLITE_MAX_MEMORY</a>=<i>N</i> compile-time option.
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<li>Added the <a href="../cli.html#sha3sum">.sha3sum dot-command</a> and the <a href="../cli.html#selftest">.selftest dot-command</a>
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to the <a href="../cli.html">command-line shell</a>
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<li>Begin enforcing <a href="../c3ref/c_limit_attached.html#sqlitelimitvdbeop">SQLITE_LIMIT_VDBE_OP</a>. This can be used, for example, to prevent
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excessively large prepared statements in systems that accept SQL queries from
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untrusted users.
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<li>Various performance improvements.
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<p><b>Bug Fixes:</b>
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<li>Ensure that indexed expressions with collating sequences are handled correctly.
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Fix for ticket <a href="https://www.sqlite.org/src/info/eb703ba7b50c1a5">eb703ba7b50c1a5</a>.
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<li>Fix a bug in the 'start of ...' modifiers for the <a href="../lang_datefunc.html">date and time functions</a>.
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Ticket <a href="https://www.sqlite.org/src/info/6097cb92745327a1">6097cb92745327a1</a>
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<li>Fix a potential segfault in complex recursive triggers, resulting from a
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bug in the OP_Once opcode introduced as part of a performance optimization in
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version 3.15.0.
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Ticket <a href="https://www.sqlite.org/src/info/06796225f59c057c">06796225f59c057c</a>
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<li>In the <a href="../rbu.html">RBU extension</a>, add extra sync operations to avoid the possibility of
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corruption following a power failure.
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<li>The <a href="../c3ref/trace_v2.html">sqlite3_trace_v2()</a> output for nested SQL statements should always begin
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with a "--" comment marker.
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</ol>
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<p><b>Additional changes in version 3.18.1:</b></p>
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<p><ol class='lessindent'>
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<li value='18'>Fix a bug associated with <a href="../pragma.html#pragma_auto_vacuum">auto_vacuum</a> that can lead to database
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corruption. The bug was introduced in <a href="../releaselog/3_16_0.html">version 3.16.0</a> (2017-01-02).
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Ticket <a href="https://sqlite.org/src/info/fda22108">fda22108</a>.
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<p><b>Hashes:</b>
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<li>SQLITE_SOURCE_ID: "2017-06-16 13:41:15 77bb46233db03a3338bacf7e56f439be3dfd1926ea0c44d252eeafa7a7b31c06"
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<li>SHA3-256 for sqlite3.c: 334eaf776db9d09a4e69d6012c266bc837107edc2c981739ef82081cb11c5723
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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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