207 lines
9.7 KiB
HTML
207 lines
9.7 KiB
HTML
<!DOCTYPE html>
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<link href="../sqlite.css" rel="stylesheet">
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<title>SQLite Release 3.41.1 On 2023-03-10</title>
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<!-- path=../ -->
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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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<li><a href="../index.html">Home</a>
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<li><a href='../download.html'>Download</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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<h2>SQLite Release 3.41.1 On 2023-03-10</h2><p><b>Prior changes from version 3.41.0 (2023-02-21):</b></p>
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<p><ol class='lessindent'>
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<li value='1'>Query planner improvements:
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<ol type="a">
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<li> Make use of <a href="../expridx.html">indexed expressions</a> within an aggregate query that
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includes a GROUP BY clause.
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<li> The query planner has improved awareness of when an index is
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a <a href="../queryplanner.html#covidx">covering index</a> and adjusts predicted runtimes accordingly.
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<li> The query planner is more aggressive about using <a href="../optoverview.html#coroutines">co-routines</a> rather
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than materializing subqueries and views.
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<li> Queries against the built-in table-valued functions <a href="../json1.html#jtree">json_tree()</a> and
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<a href="../json1.html#jeach">json_each()</a> will now usually treat "ORDER BY rowid" as a no-op.
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<li> Enhance the ability of the query planner to use <a href="../expridx.html">indexed expressions</a>
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even if the expression has been modified by the
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<a href="../optoverview.html#constprop">constant-propagation optimization</a>.
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(See <a href="https://sqlite.org/forum/forumpost/0a539c76db3b9e29">forum thread 0a539c7</a>.)
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</ol>
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<li>Add the built-in <a href="../lang_corefunc.html#unhex">unhex()</a> SQL function.
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<li>Add the base64 and base85 application-defined functions as an extension and
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include that extension in the <a href="../cli.html">CLI</a>.
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<li>Add the <a href="../c3ref/stmt_scanstatus.html">sqlite3_stmt_scanstatus_v2()</a> interface. (This interface is only
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available if SQLite is compiled using <a href="../compile.html#enable_stmt_scanstatus">SQLITE_ENABLE_STMT_SCANSTATUS</a>.)
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<li>In-memory databases created using <a href="../c3ref/deserialize.html">sqlite3_deserialize()</a> now report their
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filename as an empty string, not as 'x'.
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<li>Changes to the <a href="../cli.html">CLI</a>:
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<ol type="a">
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<li> Add the new base64() and base85() SQL functions
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<li> Enhanced <a href="../eqp.html">EXPLAIN QUERY PLAN</a> output using the new <a href="../c3ref/stmt_scanstatus.html">sqlite3_stmt_scanstatus_v2()</a>
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interface when compiled using <a href="../compile.html#enable_stmt_scanstatus">SQLITE_ENABLE_STMT_SCANSTATUS</a>.
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<li> The "<tt>.scanstats est</tt>" command provides query planner estimates in profiles.
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<li> The continuation prompt indicates if the input is currently inside of a
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string literal, identifier literal, comment, trigger definition, etc.
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<li> Enhance the --safe command-line option to disallow dangerous SQL functions.
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<li> The <a href="../quirks.html#dblquote">double-quoted string misfeature</a> is now disabled by default for CLI
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builds. Legacy use cases can reenable the misfeature at run-time using
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the "<tt>.dbconfig dqs_dml on</tt>" and "<tt>.dbconfig dqs_ddl on</tt>"
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commands.
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</ol>
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<li>Enhance the <a href="../pragma.html#pragma_integrity_check">PRAGMA integrity_check</a> command so that it detects when text strings in
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a table are equivalent to but not byte-for-byte identical to the same strings in the index.
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<li>Enhance the <a href="../carray.html">carray table-valued function</a> so that it is able to bind an array of
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BLOB objects.
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<li>Added the <a href="../c3ref/interrupt.html">sqlite3_is_interrupted()</a> interface.
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<li>Long-running calls to <a href="../c3ref/prepare.html">sqlite3_prepare()</a> and similar now invoke the
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<a href="../c3ref/progress_handler.html">progress handler callback</a> and react to <a href="../c3ref/interrupt.html">sqlite3_interrupt()</a>.
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<li>The <a href="../c3ref/vtab_in_first.html">sqlite3_vtab_in_first()</a> and <a href="../c3ref/vtab_in_first.html">sqlite3_vtab_in_next()</a> functions are enhanced so that
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they reliably detect if they are invoked on a parameter that was not selected for
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multi-value IN processing using <a href="../c3ref/vtab_in.html">sqlite3_vtab_in()</a>.
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They return SQLITE_ERROR instead of SQLITE_MISUSE in this case.
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<li>The parser now ignores excess parentheses around a subquery on the right-hand side
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of an IN operator, so that SQLite now works the same as PostgreSQL in this regard.
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Formerly, SQLite treated the subquery as an expression with an implied "LIMIT 1".
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<li>Added the <a href="../c3ref/c_fcntl_begin_atomic_write.html#sqlitefcntlresetcache">SQLITE_FCNTL_RESET_CACHE</a> option to the <a href="../c3ref/file_control.html">sqlite3_file_control()</a> API.
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<li>Makefile improvements:
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<ol type="a">
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<li>The new makefile target "sqlite3r.c" builds an <a href="../amalgamation.html">amalgamation</a> that includes
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the <a href="../recovery.html">recovery extension</a>.
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<li>New makefile targets "devtest" and "releasetest" for running a
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quick developmental test prior to doing a check-in and for doing a full
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release test, respectively.
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</ol>
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<li>Miscellaneous performance enhancements.
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</ol>
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<p><b>Changes in this specific patch release, version 3.41.1 (2023-03-10):</b></p>
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<p><ol class='lessindent'>
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<li value='16'> Provide compile-time options -DHAVE_LOG2=0 and -DHAVE_LOG10=0 to enable SQLite to be
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compiled on systems that omit the standard library functions log2() and log10(), repectively.
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<li> Ensure that the datatype for column t1.x in
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"<tt>CREATE TABLE t1 AS SELECT CAST(7 AS INT) AS x;</tt>" continues to be INT and is not NUM,
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for historical compatibility.
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<li> Enhance <a href="../pragma.html#pragma_integrity_check">PRAGMA integrity_check</a> to detect when extra bytes appear at the end of an
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index record.
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<li> Fix various obscure bugs reported by the user community. See the
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<a href="https://sqlite.org/src/timeline?from=version-3.41.0&to=version-3.41.1">timeline of changes</a>
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for details.
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<p><b>Hashes:</b>
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<li>SQLITE_SOURCE_ID: 2023-03-10 12:13:52 20399f3eda5ec249d147ba9e48da6e87f969d7966a9a896764ca437ff7e737ff
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<li>SHA3-256 for sqlite3.c: d0d9db8425570f4a57def04fb8f4ac84f5c3e4e71d3d4d10472e3639c5fdf09f
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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="https://www.sqlite.org/src/timeline">
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SQLite version control site</a>.</p>
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