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diff --git a/www/releaselog/3_12_1.html b/www/releaselog/3_12_1.html new file mode 100644 index 0000000..8b74f15 --- /dev/null +++ b/www/releaselog/3_12_1.html @@ -0,0 +1,199 @@ +<!DOCTYPE html> +<html><head> +<meta name="viewport" content="width=device-width, initial-scale=1.0"> +<meta http-equiv="content-type" content="text/html; charset=UTF-8"> +<link href="../sqlite.css" rel="stylesheet"> +<title>SQLite Release 3.12.1 On 2016-04-08</title> +<!-- path=../ --> +</head> +<body> +<div class=nosearch> +<a href="../index.html"> +<img class="logo" src="../images/sqlite370_banner.gif" alt="SQLite" border="0"> +</a> +<div><!-- IE hack to prevent disappearing logo --></div> +<div class="tagline desktoponly"> +Small. Fast. Reliable.<br>Choose any three. +</div> +<div class="menu mainmenu"> +<ul> +<li><a href="../index.html">Home</a> +<li class='mobileonly'><a href="javascript:void(0)" onclick='toggle_div("submenu")'>Menu</a> +<li class='wideonly'><a href='../about.html'>About</a> +<li class='desktoponly'><a href="../docs.html">Documentation</a> +<li class='desktoponly'><a href="../download.html">Download</a> +<li class='wideonly'><a href='../copyright.html'>License</a> +<li class='desktoponly'><a href="../support.html">Support</a> +<li class='desktoponly'><a href="../prosupport.html">Purchase</a> +<li class='search' id='search_menubutton'> +<a href="javascript:void(0)" onclick='toggle_search()'>Search</a> +</ul> +</div> +<div class="menu submenu" id="submenu"> +<ul> +<li><a href='../about.html'>About</a> +<li><a href='../docs.html'>Documentation</a> +<li><a href='../download.html'>Download</a> +<li><a href='../support.html'>Support</a> +<li><a href='../prosupport.html'>Purchase</a> +</ul> +</div> +<div class="searchmenu" id="searchmenu"> +<form method="GET" action="../search"> +<select name="s" id="searchtype"> +<option value="d">Search Documentation</option> +<option value="c">Search Changelog</option> +</select> +<input type="text" name="q" id="searchbox" value=""> +<input type="submit" value="Go"> +</form> +</div> +</div> +<script> +function toggle_div(nm) { +var w = document.getElementById(nm); +if( w.style.display=="block" ){ +w.style.display = "none"; +}else{ +w.style.display = "block"; +} +} +function toggle_search() { +var w = document.getElementById("searchmenu"); +if( w.style.display=="block" ){ +w.style.display = "none"; +} else { +w.style.display = "block"; +setTimeout(function(){ +document.getElementById("searchbox").focus() +}, 30); +} +} +function div_off(nm){document.getElementById(nm).style.display="none";} +window.onbeforeunload = function(e){div_off("submenu");} +/* Disable the Search feature if we are not operating from CGI, since */ +/* Search is accomplished using CGI and will not work without it. */ +if( !location.origin || !location.origin.match || !location.origin.match(/http/) ){ +document.getElementById("search_menubutton").style.display = "none"; +} +/* Used by the Hide/Show button beside syntax diagrams, to toggle the */ +function hideorshow(btn,obj){ +var x = document.getElementById(obj); +var b = document.getElementById(btn); +if( x.style.display!='none' ){ +x.style.display = 'none'; +b.innerHTML='show'; +}else{ +x.style.display = ''; +b.innerHTML='hide'; +} +return false; +} +var antiRobot = 0; +function antiRobotGo(){ +if( antiRobot!=3 ) return; +antiRobot = 7; +var j = document.getElementById("mtimelink"); +if(j && j.hasAttribute("data-href")) j.href=j.getAttribute("data-href"); +} +function antiRobotDefense(){ +document.body.onmousedown=function(){ +antiRobot |= 2; +antiRobotGo(); +document.body.onmousedown=null; +} +document.body.onmousemove=function(){ +antiRobot |= 2; +antiRobotGo(); +document.body.onmousemove=null; +} +setTimeout(function(){ +antiRobot |= 1; +antiRobotGo(); +}, 100) +antiRobotGo(); +} +antiRobotDefense(); +</script> +<h2>SQLite Release 3.12.1 On 2016-04-08</h2><p><b>Prior changes from version 3.12.0 (2016-03-29):</b></p> +<p><ol class='lessindent'> +<p><b>Potentially Disruptive Change:</b> +<li value='1'>The <a href="../compile.html#default_page_size">SQLITE_DEFAULT_PAGE_SIZE</a> is increased from 1024 to 4096. + The <a href="../compile.html#default_cache_size">SQLITE_DEFAULT_CACHE_SIZE</a> is changed from 2000 to -2000 so + the same amount of cache memory is used by default. + See the application note on the + <a href="../pgszchng2016.html">version 3.12.0 page size change</a> for further information. +<p><b>Performance enhancements:</b> +<li>Enhancements to the <a href="../lemon.html">Lemon parser generator</a> + so that it creates a smaller and faster SQL parser. +<li>Only create <a href="../tempfiles.html#superjrnl">master journal</a> files if two or more attached databases are all + modified, do not have <a href="../pragma.html#pragma_synchronous">PRAGMA synchronous</a> set to OFF, and + do not have the <a href="../pragma.html#pragma_journal_mode">journal_mode</a> set to OFF, MEMORY, or WAL. +<li>Only create <a href="../tempfiles.html#stmtjrnl">statement journal</a> files when their size exceeds a threshold. + Otherwise the journal is held in memory and no I/O occurs. The threshold + can be configured at compile-time using <a href="../compile.html#stmtjrnl_spill">SQLITE_STMTJRNL_SPILL</a> or at + start-time using <a href="../c3ref/config.html">sqlite3_config</a>(<a href="../c3ref/c_config_covering_index_scan.html#sqliteconfigstmtjrnlspill">SQLITE_CONFIG_STMTJRNL_SPILL</a>). +<li>The query planner is able to optimize IN operators on <a href="../vtab.html">virtual tables</a> + even if the <a href="../vtab.html#xbestindex">xBestIndex</a> method does not set the + sqlite3_index_constraint_usage.omit flag of the + virtual table column to the left of the IN operator. +<li>The query planner now does a better job of optimizing <a href="../vtab.html">virtual table</a> + accesses in a 3-way or higher join where constraints on the virtual + table are split across two or more other tables of the join. +<li>More efficient handling of <a href="../appfunc.html">application-defined SQL functions</a>, especially + in cases where the application defines hundreds or thousands of + custom functions. +<li>The query planner considers the LIMIT clause when estimating the cost + of ORDER BY. +<li>The configure script (on unix) automatically detects + pread() and pwrite() and sets compile-time options to use those OS + interfaces if they are available. +<li>Reduce the amount of memory needed to hold the schema. +<li>Other miscellaneous micro-optimizations for improved performance and reduced + memory usage. +<p><b>New Features:</b> +<li>Added the <a href="../c3ref/c_dbconfig_defensive.html#sqlitedbconfigenablefts3tokenizer">SQLITE_DBCONFIG_ENABLE_FTS3_TOKENIZER</a> option to <a href="../c3ref/db_config.html">sqlite3_db_config()</a> + which allows the two-argument version of the <a href="../fts3.html#f3tknzr">fts3_tokenizer()</a> SQL function to + be enabled or disabled at run-time. +<li>Added the <a href="https://www.sqlite.org/src/artifact/d7cc99350?ln=403-443">sqlite3rbu_bp_progress()</a> + interface to the <a href="../rbu.html">RBU</a> extension. +<li>The <a href="../pragma.html#pragma_defer_foreign_keys">PRAGMA defer_foreign_keys=ON</a> statement now also disables + <a href="../foreignkeys.html#fk_actions">RESTRICT actions</a> on foreign key. +<li>Added the <a href="../c3ref/system_errno.html">sqlite3_system_errno()</a> interface. +<li>Added the <a href="../compile.html#default_synchronous">SQLITE_DEFAULT_SYNCHRONOUS</a> and <a href="../compile.html#default_wal_synchronous">SQLITE_DEFAULT_WAL_SYNCHRONOUS</a> + compile-time options. The <a href="../compile.html#default_synchronous">SQLITE_DEFAULT_SYNCHRONOUS</a> compile-time option + replaces the <a href="../compile.html#extra_durable">SQLITE_EXTRA_DURABLE</a> option, which is no longer supported. +<li>Enhanced the ".stats" command in the <a href="../cli.html">command-line shell</a> to show more + information about I/O performance obtained from /proc, when available. +<p><b>Bug fixes:</b> +<li>Make sure the <a href="../c3ref/get_auxdata.html">sqlite3_set_auxdata()</a> values from multiple triggers + within a single statement do not interfere with one another. + Ticket <a href="https://www.sqlite.org/src/info/dc9b1c91">dc9b1c91</a>. +<li>Fix the code generator for expressions of the form "x IN (SELECT...)" where + the SELECT statement on the RHS is a correlated subquery. + Ticket <a href="https://www.sqlite.org/src/info/5e3c886796e5512e">5e3c886796e5512e</a>. +<li>Fix a harmless TSAN warning associated with the <a href="../c3ref/db_readonly.html">sqlite3_db_readonly()</a> interface. +</ol> +<p><b>Changes in this specific patch release, version 3.12.1 (2016-04-08):</b></p> +<p><ol class='lessindent'> +<li value='21'>Fix a boundary condition error introduced by version 3.12.0 + that can result in a crash during heavy <a href="../lang_savepoint.html">SAVEPOINT</a> usage. + Ticket <a href="https://www.sqlite.org/src/info/7f7f8026eda38">7f7f8026eda38</a>. +<li>Fix <a href="../lang_createview.html">views</a> so that they inherit column datatypes from the + table that they are defined against, when possible. +<li>Fix the query planner so that IS and IS NULL operators are able + to drive an index on a LEFT OUTER JOIN. +<p><b>Hashes:</b> +<li>SQLITE_SOURCE_ID: "2016-04-08 15:09:49 fe7d3b75fe1bde41511b323925af8ae1b910bc4d" +<li>SHA1 for sqlite3.c: ebb18593350779850e3e1a930eb84a70fca8c1d1 + +</ol></p> + + <p>A <a href="../changes.html">complete list of SQLite releases</a> + in a single page and a <a href="../chronology.html">chronology</a> are both also available. + A detailed history of every + check-in is available at + <a href="https://www.sqlite.org/src/timeline"> + SQLite version control site</a>.</p> + + |