238 lines
11 KiB
HTML
238 lines
11 KiB
HTML
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<!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 3.38.5 On 2022-05-06</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='mobileonly'><a href="javascript:void(0)" onclick='toggle_div("submenu")'>Menu</a>
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<li class='wideonly'><a href='../about.html'>About</a>
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<li class='desktoponly'><a href="../docs.html">Documentation</a>
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<li class='wideonly'><a href='../copyright.html'>License</a>
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<a href="javascript:void(0)" onclick='toggle_search()'>Search</a>
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</div>
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<div class="menu submenu" id="submenu">
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<ul>
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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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<div class="searchmenu" id="searchmenu">
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<form method="GET" action="../search">
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<select name="s" id="searchtype">
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<option value="d">Search Documentation</option>
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<option value="c">Search Changelog</option>
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<script>
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document.getElementById("searchbox").focus()
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function div_off(nm){document.getElementById(nm).style.display="none";}
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window.onbeforeunload = function(e){div_off("submenu");}
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/* Disable the Search feature if we are not operating from CGI, since */
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/* Search is accomplished using CGI and will not work without it. */
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if( !location.origin || !location.origin.match || !location.origin.match(/http/) ){
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document.getElementById("search_menubutton").style.display = "none";
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x.style.display = '';
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b.innerHTML='hide';
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}
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return false;
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}
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var antiRobot = 0;
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function antiRobotGo(){
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if( antiRobot!=3 ) return;
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antiRobot = 7;
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if(j && j.hasAttribute("data-href")) j.href=j.getAttribute("data-href");
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}
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function antiRobotDefense(){
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document.body.onmousedown=function(){
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antiRobot |= 2;
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antiRobotGo();
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document.body.onmousedown=null;
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}
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document.body.onmousemove=function(){
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antiRobot |= 2;
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antiRobotGo();
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document.body.onmousemove=null;
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}
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setTimeout(function(){
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antiRobot |= 1;
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antiRobotGo();
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}, 100)
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antiRobotGo();
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}
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antiRobotDefense();
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</script>
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<h2>SQLite Release 3.38.5 On 2022-05-06</h2><p><b>Prior changes from version 3.38.0 (2022-02-22):</b></p>
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<p><ol class='lessindent'>
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<li value='1'> Added <a href="../json1.html#jptr">the -> and ->> operators</a> for easier processing of JSON.
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The new operators are compatible with MySQL and PostgreSQL.
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<li> The JSON functions are now built-ins. It is no longer necessary
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to use the <a href="../compile.html#enable_json1">-DSQLITE_ENABLE_JSON1</a> compile-time option to enable JSON
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support. JSON is on by default. Disable the JSON interface using
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the new <a href="../compile.html#omit_json">-DSQLITE_OMIT_JSON</a> compile-time option.
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<li> Enhancements to <a href="../lang_datefunc.html">date and time functions</a>:
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<ol type="a">
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<li> Added the <a href="../lang_datefunc.html#uepch">unixepoch() function</a>.
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<li> Added the <a href="../lang_datefunc.html#automod">auto modifier</a> and the <a href="../lang_datefunc.html#jdmod">julianday modifier</a>.
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</ol>
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<li> Rename the <a href="../lang_corefunc.html#printf">printf() SQL function</a> to <a href="../lang_corefunc.html#format">format()</a> for better
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compatibility. The original printf() name is retained as an alias
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for backwards compatibility.
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<li> Added the <a href="../c3ref/errcode.html">sqlite3_error_offset()</a> interface, which can sometimes
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help to localize an SQL error to a specific character in the input
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SQL text, so that applications can provide better error messages.
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<li> Enhanced the interface to <a href="../vtab.html">virtual tables</a> as follows:
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<ol type="a">
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<li> Added the <a href="../c3ref/vtab_distinct.html">sqlite3_vtab_distinct()</a> interface.
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<li> Added the <a href="../c3ref/vtab_rhs_value.html">sqlite3_vtab_rhs_value()</a> interface.
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<li> Added new operator types <a href="../c3ref/c_index_constraint_eq.html">SQLITE_INDEX_CONSTRAINT_LIMIT</a>
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and <a href="../c3ref/c_index_constraint_eq.html">SQLITE_INDEX_CONSTRAINT_OFFSET</a>.
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<li> Added the <a href="../c3ref/vtab_in.html">sqlite3_vtab_in()</a> interface (and related) to enable
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a virtual table to process <a href="../lang_expr.html#in_op">IN operator</a> constraints all at once,
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rather than processing each value of the right-hand side of the
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IN operator separately.
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</ol>
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<li> <a href="../cli.html">CLI</a> enhancements:
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<ol type="a">
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<li> <a href="../cli.html#clmnr">Columnar output modes</a> are enhanced to correctly handle tabs
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and newlines embedded in text.
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<li> Added options like "--wrap N", "--wordwrap on", and "--quote"
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to the <a href="../cli.html#clmnr">columnar output modes</a>.
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<li> Added the <a href="../cli.html#qbox">.mode qbox</a> alias.
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<li> The <a href="../cli.html#csv">.import command</a> automatically disambiguates column names.
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<li> Use the new <a href="../c3ref/errcode.html">sqlite3_error_offset()</a> interface to provide better
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error messages.
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</ol>
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<li> Query planner enhancements:
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<ol type="a">
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<li> Use a Bloom filter to speed up large analytic queries.
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<li> Use a balanced merge tree to evaluate UNION or UNION ALL
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compound SELECT statements that have an ORDER BY clause.
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</ol>
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<li> The <a href="../lang_altertable.html">ALTER TABLE</a> statement is changed to silently ignores entries in the
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<a href="../schematab.html">sqlite_schema table</a> that do not parse when <a href="../pragma.html#pragma_writable_schema">PRAGMA writable_schema=ON</a>.
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</ol>
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<p><b>Prior changes from version 3.38.1 (2022-03-12):</b></p>
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<p><ol class='lessindent'>
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<li value='10'> Fix problems with the new Bloom filter optimization that might cause
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some obscure queries to get an incorrect answer.
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<li> Fix the <a href="../lang_datefunc.html#localtime">localtime modifier</a> of the <a href="../lang_datefunc.html">date and time functions</a> so that
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it preserves fractional seconds.
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<li> Fix the <a href="../lang_corefunc.html#sqlite_offset">sqlite_offset SQL function</a> so that it works correctly even
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in corner cases such as when the argument is a virtual column or the
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column of a view.
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<li> Fix <a href="../rowvalue.html#rvinop">row value IN operator</a> constraints on <a href="../vtab.html">virtual tables</a> so that they
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work correctly even if the virtual table implementation relies on bytecode
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to filter rows that do not satisfy the constraint.
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<li> Other minor fixes to assert() statements, test cases, and documentation.
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See the <a href="https://sqlite.org/src/timeline?p=version-3.38.1&bt=version-3.38.0">source code timeline</a>
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for details.
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</ol>
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<p><b>Prior changes from version 3.38.2 (2022-03-26):</b></p>
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<p><ol class='lessindent'>
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<li value='15'> Fix a user-discovered problem with the new Bloom filter optimization
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that might cause an incorrect answer when doing a LEFT JOIN with a WHERE
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clause constraint that says that one of the columns on the right table of
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the LEFT JOIN is NULL. See
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<a href='https://sqlite.org/forum/forumpost/031e262a89b6a9d2'>forum thread 031e262a89b6a9d2</a>.
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<li> Other minor patches. See the
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<a href='https://sqlite.org/src/timeline?p=version-3.38.2&bt=version-3.38.1'>timeline</a> for
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details.
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</ol>
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<p><b>Prior changes from version 3.38.3 (2022-04-27):</b></p>
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<p><ol class='lessindent'>
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<li value='17'> Fix a case of the query planner be overly aggressive with optimizing automatic-index
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and Bloom-filter construction, using inappropriate ON clause terms to restrict the
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size of the automatic-index or Bloom filter, and resulting in missing rows in the
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output.
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<a href='https://sqlite.org/forum/forumpost/0d3200f4f3bcd3a3'>Forum thread 0d3200f4f3bcd3a3</a>.
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<li> Other minor patches. See the
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<a href='https://sqlite.org/src/timeline?p=version-3.38.3&bt=version-3.38.2'>timeline</a> for
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details.
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</ol>
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<p><b>Prior changes from version 3.38.4 (2022-05-04):</b></p>
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<p><ol class='lessindent'>
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<li value='19'> Fix a byte-code problem in the Bloom filter pull-down optimization added by release
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3.38.0 in which an error in the byte code causes the byte code engine to enter an
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infinite loop when the pull-down optimization encounters a NULL key.
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<a href='https://sqlite.org/forum/forumpost/2482b32700384a0f'>Forum thread 2482b32700384a0f</a>.
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<li> Other minor patches. See the
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<a href='https://sqlite.org/src/timeline?p=branch-3.38&bt=version-3.38.3'>timeline</a> for
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details.
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</ol>
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<p><b>Changes in this specific patch release, version 3.38.5 (2022-05-06):</b></p>
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<p><ol class='lessindent'>
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<li value='21'> Fix <a href="../news.html#2022_05_06">a blunder</a> in the <a href="../cli.html">CLI</a> of the 3.38.4 release.
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<p><b>Hashes:</b>
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<li>SQLITE_SOURCE_ID: 2022-05-06 15:25:27 78d9c993d404cdfaa7fdd2973fa1052e3da9f66215cff9c5540ebe55c407d9fe
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<li>SHA3-256 for sqlite3.c: b05ef42ed234009b4b3dfb36c5f5ccf6d728da80f25ee560291269cf6cfe635f
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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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