169 lines
8.1 KiB
HTML
169 lines
8.1 KiB
HTML
<!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 3.7.10 On 2012-01-16</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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<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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setTimeout(function(){
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document.getElementById("searchbox").focus()
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}, 30);
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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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</div>
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<h2>SQLite Release 3.7.10 On 2012-01-16</h2><p><ol class='lessindent'>
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<li>The default <a href="../fileformat2.html#schemaformat">schema format number</a> is changed from 1 to 4.
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This means that, unless
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the <a href="../pragma.html#pragma_legacy_file_format">PRAGMA legacy_file_format=ON</a> statement is
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run, newly created database files will be unreadable by version of SQLite
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prior to 3.3.0 (2006-01-10). It also means that the <a href="../lang_createindex.html#descidx">descending indices</a>
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are enabled by default.
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<li>The sqlite3_pcache_methods structure and the <a href="../c3ref/c_config_covering_index_scan.html#sqliteconfigpcache">SQLITE_CONFIG_PCACHE</a>
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and <a href="../c3ref/c_config_covering_index_scan.html#sqliteconfiggetpcache">SQLITE_CONFIG_GETPCACHE</a> configuration parameters are deprecated.
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They are replaced by a new <a href="../c3ref/pcache_methods2.html">sqlite3_pcache_methods2</a> structure and
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<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
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parameters.
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<li>Added the <a href="../psow.html">powersafe overwrite</a> property to the VFS interface. Provide
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the <a href="../c3ref/c_iocap_atomic.html">SQLITE_IOCAP_POWERSAFE_OVERWRITE</a> I/O capability, the
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<a href="../compile.html#powersafe_overwrite">SQLITE_POWERSAFE_OVERWRITE</a> compile-time option, and the
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"psow=BOOLEAN" query parameter for <a href="../uri.html">URI filenames</a>.
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<li>Added the <a href="../c3ref/db_release_memory.html">sqlite3_db_release_memory()</a> interface and the
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<a href="../pragma.html#pragma_shrink_memory">shrink_memory pragma</a>.
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<li>Added the <a href="../c3ref/db_filename.html">sqlite3_db_filename()</a> interface.
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<li>Added the <a href="../c3ref/stmt_busy.html">sqlite3_stmt_busy()</a> interface.
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<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.
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<li>If the argument to <a href="../pragma.html#pragma_cache_size">PRAGMA cache_size</a> is negative N, that means to use
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approximately -1024*N bytes of memory for the page cache regardless of
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the page size.
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<li>Enhanced the default memory allocator to make use of _msize() on windows,
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malloc_size() on Mac, and malloc_usable_size() on Linux.
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<li>Enhanced the query planner to support index queries with range constraints
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on the rowid.
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<li>Enhanced the query planner flattening logic to allow UNION ALL compounds
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to be promoted upwards to replace a simple wrapper SELECT even if the
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compounds are joins.
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<li>Enhanced the query planner so that the xfer optimization can be used with
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INTEGER PRIMARY KEY ON CONFLICT as long as the destination table is
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initially empty.
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<li>Enhanced the windows <a href="../vfs.html">VFS</a> so that all system calls can be overridden
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using the xSetSystemCall interface.
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<li>Updated the "unix-dotfile" <a href="../vfs.html">VFS</a> to use locking directories with mkdir()
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and rmdir() instead of locking files with open() and unlink().
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<li>Enhancements to the test_quota.c extension to support stdio-like interfaces
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with quotas.
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<li>Change the unix <a href="../vfs.html">VFS</a> to be tolerant of read() system calls that return
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less then the full number of requested bytes.
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<li>Change both unix and windows <a href="../vfs.html">VFSes</a> to report a sector size of 4096
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instead of the old default of 512.
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<li>In the <a href="../tclsqlite.html">TCL Interface</a>, add the -uri option to the "sqlite3" TCL command
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used for creating new database connection objects.
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<li>Added the <a href="../c3ref/c_testctrl_always.html">SQLITE_TESTCTRL_EXPLAIN_STMT</a> test-control option with the
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<a href="../compile.html#enable_tree_explain">SQLITE_ENABLE_TREE_EXPLAIN</a> compile-time option to enable the
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<a href="../cli.html">command-line shell</a> to display ASCII-art parse trees of SQL statements
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that it processes, for debugging and analysis.
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<li><b>Bug fix:</b>
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Add an additional xSync when restarting a WAL in order to prevent an
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exceedingly unlikely but theoretically possible
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database corruption following power-loss.
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Ticket <a href="http://www.sqlite.org/src/info/ff5be73dee">ff5be73dee</a>.
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<li><b>Bug fix:</b>
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Change the VDBE so that all registers are initialized to Invalid
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instead of NULL.
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Ticket <a href="http://www.sqlite.org/src/info/7bbfb7d442">7bbfb7d442</a>
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<li><b>Bug fix:</b>
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Fix problems that can result from 32-bit integer overflow.
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Ticket <a href="http://www.sqlite.org/src/info/ac0ff496b7e2">ac00f496b7e2</a>
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<li>SQLITE_SOURCE_ID:
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"2012-01-16 13:28:40 ebd01a8deffb5024a5d7494eef800d2366d97204"
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<li>SHA1 for sqlite3.c: 6497cbbaad47220bd41e2e4216c54706e7ae95d4
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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="http://www.sqlite.org/src/timeline">
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SQLite version control site</a>.</p>
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