208 lines
9.6 KiB
HTML
208 lines
9.6 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 3.39.4 On 2022-09-29</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='desktoponly'><a href="../download.html">Download</a>
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<li class='wideonly'><a href='../copyright.html'>License</a>
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<li class='desktoponly'><a href="../support.html">Support</a>
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<li class='desktoponly'><a href="../prosupport.html">Purchase</a>
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<li class='search' id='search_menubutton'>
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<a href="javascript:void(0)" onclick='toggle_search()'>Search</a>
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</ul>
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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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</ul>
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</div>
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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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</select>
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<input type="text" name="q" id="searchbox" value="">
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<input type="submit" value="Go">
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</form>
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</div>
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</div>
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<script>
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function toggle_div(nm) {
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var w = document.getElementById(nm);
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if( w.style.display=="block" ){
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w.style.display = "none";
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}else{
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w.style.display = "block";
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}
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}
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function toggle_search() {
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var w = document.getElementById("searchmenu");
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if( w.style.display=="block" ){
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w.style.display = "none";
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} else {
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w.style.display = "block";
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setTimeout(function(){
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document.getElementById("searchbox").focus()
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}, 30);
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}
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}
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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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}
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/* Used by the Hide/Show button beside syntax diagrams, to toggle the */
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function hideorshow(btn,obj){
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var x = document.getElementById(obj);
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var b = document.getElementById(btn);
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if( x.style.display!='none' ){
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x.style.display = 'none';
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b.innerHTML='show';
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}else{
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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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var j = document.getElementById("mtimelink");
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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 3.39.4 On 2022-09-29</h2><p><b>Prior changes from version 3.39.0 (2022-06-25):</b></p>
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<p><ol class='lessindent'>
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<li value='1'> Add (long overdue) support for <a href="../lang_select.html#rjoin">RIGHT and FULL OUTER JOIN</a>.
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<li> Add new binary comparison operators <a href="../lang_expr.html#isdf">IS NOT DISTINCT FROM</a> and <a href="../lang_expr.html#isdf">IS DISTINCT FROM</a>
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that are equivalent to IS and IS NOT, respective, for compatibility with
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PostgreSQL and SQL standards.
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<li> Add a new return code (value "3") from the <a href="../c3ref/vtab_distinct.html">sqlite3_vtab_distinct()</a>
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interface that indicates a query that has both DISTINCT and ORDER BY
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clauses.
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<li> Added the <a href="../c3ref/db_name.html">sqlite3_db_name()</a> interface.
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<li> The unix os interface resolves all symbolic links in database
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filenames to create a canonical name for the database before the
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file is opened.
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If the <a href="../c3ref/c_open_autoproxy.html">SQLITE_OPEN_NOFOLLOW</a> flag is used with <a href="../c3ref/open.html">sqlite3_open_v2()</a>
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or similar, the open will fail if any element of the path is a
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symbolic link.
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<li> Defer materializing views until the materialization
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is actually needed, thus avoiding unnecessary work if the materialization turns
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out to never be used.
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<li> The <a href="../lang_select.html#resultset">HAVING clause</a> of a <a href="../lang_select.html">SELECT statement</a> is now allowed on any aggregate query,
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even queries that do not have a <a href="../lang_select.html#resultset">GROUP BY clause</a>.
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<li> Many <a href="../cpu.html#microopt">microoptimizations</a> collectively reduce CPU cycles by about 2.3%.
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</ol>
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<p><b>Prior changes from version 3.39.1 (2022-07-13):</b></p>
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<p><ol class='lessindent'>
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<li value='9'> Fix an incorrect result from a query that uses a view that contains a compound
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SELECT in which only one arm contains a RIGHT JOIN and where the view is not
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the first FROM clause term of the query that contains the view.
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<a href="https://sqlite.org/forum/forumpost/174afeae5734d42d">forum post 174afeae5734d42d</a>.
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<li> Fix some harmless compiler warnings.
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<li> Fix a long-standing problem with <a href="../lang_altertable.html#altertabrename">ALTER TABLE RENAME</a> that can only arise
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if the <a href="../c3ref/limit.html">sqlite3_limit</a>(<a href="../c3ref/c_limit_attached.html#sqlitelimitsqllength">SQLITE_LIMIT_SQL_LENGTH</a>) is set to a very small value.
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<li> Fix a long-standing problem in <a href="../fts3.html">FTS3</a> that can only arise when compiled with
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the <a href="../compile.html#enable_fts3_parenthesis">SQLITE_ENABLE_FTS3_PARENTHESIS</a> compile-time option.
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<li> Fix the build so that is works when the <a href="../compile.html#debug">SQLITE_DEBUG</a> and
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<a href="../compile.html#omit_windowfunc">SQLITE_OMIT_WINDOWFUNC</a> compile-time options are both provided at the
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same time.
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<li> Fix the initial-prefix optimization for the <a href="../lang_expr.html#regexp">REGEXP</a> extension so that it works
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correctly even if the prefix contains characters that require a 3-byte UTF8
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encoding.
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<li> Enhance the <a href="../stmt.html">sqlite_stmt</a> virtual table so that it buffers all of its output.
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</ol>
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<p><b>Prior changes from version 3.39.2 (2022-07-21):</b></p>
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<p><ol class='lessindent'>
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<li value='16'> Fix a performance regression in the query planner associated with rearranging
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the order of FROM clause terms in the presences of a LEFT JOIN.
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<li> Apply fixes for CVE-2022-35737, Chromium bugs 1343348 and 1345947,
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<a href="https://sqlite.org/forum/forumpost/3607259d3c">forum post 3607259d3c</a>, and
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other minor problems discovered by internal testing.
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</ol>
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<p><b>Prior changes from version 3.39.3 (2022-09-05):</b></p>
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<p><ol class='lessindent'>
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<li value='18'> Use a statement journal on DML statement affecting two or more database
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rows if the statement makes use of a SQL functions that might abort. See
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<a href="https://sqlite.org/forum/forumpost/9b9e4716c0d7bbd1">forum thread 9b9e4716c0d7bbd1</a>.
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<li> Use a mutex to protect the <a href="../pragma.html#pragma_temp_store_directory">PRAGMA temp_store_directory</a> and
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<a href="../pragma.html#pragma_data_store_directory">PRAGMA data_store_directory</a> statements, even though they are deprecated and
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documented as not being threadsafe. See
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<a href="https://sqlite.org/forum/forumpost/719a11e1314d1c70">forum post 719a11e1314d1c70</a>.
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<li> Other bug and warning fixes. See the
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<a href="https://sqlite.org/src/timeline?p=version-3.39.3&bt=version-3.39.2">timeline</a>
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for details.
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</ol>
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<p><b>Changes in this specific patch release, version 3.39.4 (2022-09-29):</b></p>
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<p><ol class='lessindent'>
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<li value='21'> Fix the build on Windows so that it works with -DSQLITE_OMIT_AUTOINIT
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<li> Fix a long-standing problem in the btree balancer that might, in rare cases,
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cause database corruption if the application uses an
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<a href="../c3ref/pcache_methods2.html">application-defined page cache</a>.
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<li> Enhance <a href="../c3ref/c_dbconfig_defensive.html#sqlitedbconfigdefensive">SQLITE_DBCONFIG_DEFENSIVE</a> so that it disallows <a href="../lang_createtrigger.html">CREATE TRIGGER</a>
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statements if one or more of the statements in the body of the trigger write
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into <a href="../vtab.html#xshadowname">shadow tables</a>.
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<li> Fix a possible integer overflow in the size computation for a memory allocation
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in FTS3.
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<li> Fix a misuse of the <a href="../c3ref/get_auxdata.html">sqlite3_set_auxdata()</a> interface in the
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<a href="https://sqlite.org/src/dir/ext/icu">ICU Extension</a>.
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<p><b>Hashes:</b>
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<li>SQLITE_SOURCE_ID: 2022-09-29 15:55:41 a29f9949895322123f7c38fbe94c649a9d6e6c9cd0c3b41c96d694552f26b309
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<li>SHA3-256 for sqlite3.c: f65082298127e2ddae6539beb94f5204b591df64ba2c7da83c7d0faffd6959d8
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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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