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+<!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 3.7.10 On 2012-01-16</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 3.7.10 On 2012-01-16</h2><p><ol class='lessindent'>
+<li>The default <a href="../fileformat2.html#schemaformat">schema format number</a> is changed from 1 to 4.
+ This means that, unless
+ the <a href="../pragma.html#pragma_legacy_file_format">PRAGMA legacy_file_format=ON</a> statement is
+ run, newly created database files will be unreadable by version of SQLite
+ prior to 3.3.0 (2006-01-10). It also means that the <a href="../lang_createindex.html#descidx">descending indices</a>
+ are enabled by default.
+<li>The sqlite3_pcache_methods structure and the <a href="../c3ref/c_config_covering_index_scan.html#sqliteconfigpcache">SQLITE_CONFIG_PCACHE</a>
+ and <a href="../c3ref/c_config_covering_index_scan.html#sqliteconfiggetpcache">SQLITE_CONFIG_GETPCACHE</a> configuration parameters are deprecated.
+ They are replaced by a new <a href="../c3ref/pcache_methods2.html">sqlite3_pcache_methods2</a> structure and
+ <a href="../c3ref/c_config_covering_index_scan.html#sqliteconfigpcache2">SQLITE_CONFIG_PCACHE2</a> and <a href="../c3ref/c_config_covering_index_scan.html#sqliteconfiggetpcache2">SQLITE_CONFIG_GETPCACHE2</a> configuration
+ parameters.
+<li>Added the <a href="../psow.html">powersafe overwrite</a> property to the VFS interface. Provide
+ the <a href="../c3ref/c_iocap_atomic.html">SQLITE_IOCAP_POWERSAFE_OVERWRITE</a> I/O capability, the
+ <a href="../compile.html#powersafe_overwrite">SQLITE_POWERSAFE_OVERWRITE</a> compile-time option, and the
+ "psow=BOOLEAN" query parameter for <a href="../uri.html">URI filenames</a>.
+<li>Added the <a href="../c3ref/db_release_memory.html">sqlite3_db_release_memory()</a> interface and the
+ <a href="../pragma.html#pragma_shrink_memory">shrink_memory pragma</a>.
+<li>Added the <a href="../c3ref/db_filename.html">sqlite3_db_filename()</a> interface.
+<li>Added the <a href="../c3ref/stmt_busy.html">sqlite3_stmt_busy()</a> interface.
+<li>Added the <a href="../c3ref/uri_boolean.html">sqlite3_uri_boolean()</a> and <a href="../c3ref/uri_boolean.html">sqlite3_uri_int64()</a> interfaces.
+<li>If the argument to <a href="../pragma.html#pragma_cache_size">PRAGMA cache_size</a> is negative N, that means to use
+ approximately -1024*N bytes of memory for the page cache regardless of
+ the page size.
+<li>Enhanced the default memory allocator to make use of _msize() on windows,
+ malloc_size() on Mac, and malloc_usable_size() on Linux.
+<li>Enhanced the query planner to support index queries with range constraints
+ on the rowid.
+<li>Enhanced the query planner flattening logic to allow UNION ALL compounds
+ to be promoted upwards to replace a simple wrapper SELECT even if the
+ compounds are joins.
+<li>Enhanced the query planner so that the xfer optimization can be used with
+ INTEGER PRIMARY KEY ON CONFLICT as long as the destination table is
+ initially empty.
+<li>Enhanced the windows <a href="../vfs.html">VFS</a> so that all system calls can be overridden
+ using the xSetSystemCall interface.
+<li>Updated the "unix-dotfile" <a href="../vfs.html">VFS</a> to use locking directories with mkdir()
+ and rmdir() instead of locking files with open() and unlink().
+<li>Enhancements to the test_quota.c extension to support stdio-like interfaces
+ with quotas.
+<li>Change the unix <a href="../vfs.html">VFS</a> to be tolerant of read() system calls that return
+ less then the full number of requested bytes.
+<li>Change both unix and windows <a href="../vfs.html">VFSes</a> to report a sector size of 4096
+ instead of the old default of 512.
+<li>In the <a href="../tclsqlite.html">TCL Interface</a>, add the -uri option to the "sqlite3" TCL command
+ used for creating new database connection objects.
+<li>Added the <a href="../c3ref/c_testctrl_always.html">SQLITE_TESTCTRL_EXPLAIN_STMT</a> test-control option with the
+ <a href="../compile.html#enable_tree_explain">SQLITE_ENABLE_TREE_EXPLAIN</a> compile-time option to enable the
+ <a href="../cli.html">command-line shell</a> to display ASCII-art parse trees of SQL statements
+ that it processes, for debugging and analysis.
+<li><b>Bug fix:</b>
+ Add an additional xSync when restarting a WAL in order to prevent an
+ exceedingly unlikely but theoretically possible
+ database corruption following power-loss.
+ Ticket <a href="http://www.sqlite.org/src/info/ff5be73dee">ff5be73dee</a>.
+<li><b>Bug fix:</b>
+ Change the VDBE so that all registers are initialized to Invalid
+ instead of NULL.
+ Ticket <a href="http://www.sqlite.org/src/info/7bbfb7d442">7bbfb7d442</a>
+<li><b>Bug fix:</b>
+ Fix problems that can result from 32-bit integer overflow.
+ Ticket <a href="http://www.sqlite.org/src/info/ac0ff496b7e2">ac00f496b7e2</a>
+<li>SQLITE_SOURCE_ID:
+ "2012-01-16 13:28:40 ebd01a8deffb5024a5d7494eef800d2366d97204"
+<li>SHA1 for sqlite3.c: 6497cbbaad47220bd41e2e4216c54706e7ae95d4
+
+</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="http://www.sqlite.org/src/timeline">
+ SQLite version control site</a>.</p>
+
+