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diff --git a/www/releaselog/3_8_7.html b/www/releaselog/3_8_7.html new file mode 100644 index 0000000..037a328 --- /dev/null +++ b/www/releaselog/3_8_7.html @@ -0,0 +1,189 @@ +<!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 3.8.7 On 2014-10-17</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 3.8.7 On 2014-10-17</h2><p><ol class='lessindent'> +<p><b>Performance Enhancements:</b> +<li>Many micro-optimizations result in 20.3% more work for the same number + of CPU cycles relative to the previous release. + The cumulative performance increase since <a href="../releaselog/3_8_0.html">version 3.8.0</a> is 61%. + (Measured using + <a href="http://valgrind.org/docs/manual/cg-manual.html">cachegrind</a> on the + <a href="http://www.sqlite.org/src/artifact/83f6b3318f7ee">speedtest1.c</a> workload on + Ubuntu 13.10 x64 with gcc 4.8.1 and -Os. Your performance may vary.) +<li>The sorter can use auxiliary helper threads to increase real-time response. + This feature is off by default and may be + enabled using the <a href="../pragma.html#pragma_threads">PRAGMA threads</a> command or the <a href="../compile.html#default_worker_threads">SQLITE_DEFAULT_WORKER_THREADS</a> + compile-time option. +<li>Enhance the <a href="../optoverview.html#skipscan">skip-scan</a> optimization so that it is able to skip index terms that + occur in the middle of the index, not just as the left-hand side of the index. +<li>Improved optimization of <a href="../lang_expr.html#castexpr">CAST</a> operators. +<li>Various improvements in how the query planner uses <a href="../fileformat2.html#stat4tab">sqlite_stat4</a> + information to estimate plan costs. +<p><b>New Features:</b> +<li>Added new interfaces with 64-bit length parameters: + <a href="../c3ref/free.html">sqlite3_malloc64()</a>, + <a href="../c3ref/free.html">sqlite3_realloc64()</a>, + <a href="../c3ref/bind_blob.html">sqlite3_bind_blob64()</a>, + <a href="../c3ref/result_blob.html">sqlite3_result_blob64()</a>, + <a href="../c3ref/bind_blob.html">sqlite3_bind_text64()</a>, and + <a href="../c3ref/result_blob.html">sqlite3_result_text64()</a>. +<li>Added the new interface <a href="../c3ref/free.html">sqlite3_msize()</a> that returns the size of a memory allocation + obtained from <a href="../c3ref/free.html">sqlite3_malloc64()</a> and its variants. +<li>Added the <a href="../c3ref/c_limit_attached.html#sqlitelimitworkerthreads">SQLITE_LIMIT_WORKER_THREADS</a> option to <a href="../c3ref/limit.html">sqlite3_limit()</a> and + <a href="../pragma.html#pragma_threads">PRAGMA threads</a> command for configuring the number of available worker threads. +<li>The <a href="../spellfix1.html">spellfix1</a> extension allows the application to optionally specify the rowid for + each INSERT. +<li>Added the <a href="http://www.sqlite.org/src/doc/trunk/ext/userauth/user-auth.txt">User Authentication</a> + extension. +<p><b>Bug Fixes:</b> +<li>Fix a bug in the <a href="../partialindex.html">partial index</a> implementation that might result in an incorrect + answer if a partial index is used in a subquery or in a <a href="../lang_createview.html">view</a>. + Ticket <a href="http://www.sqlite.org/src/info/98d973b8f5">98d973b8f5</a>. +<li>Fix a query planner bug that might cause a table to be scanned in the wrong direction + (thus reversing the order of output) when a DESC index is used to implement the ORDER BY + clause on a query that has an identical GROUP BY clause. + Ticket <a href="http://www.sqlite.org/src/info/ba7cbfaedc7e6">ba7cbfaedc7e6</a>. +<li>Fix a bug in <a href="../c3ref/profile.html">sqlite3_trace()</a> that was causing it to sometimes fail to print + an SQL statement if that statement needed to be re-prepared. + Ticket <a href="http://www.sqlite.org/src/info/11d5aa455e0d98f3c1e6a08">11d5aa455e0d98f3c1e6a08</a> +<li>Fix a faulty assert() statement. + Ticket <a href="http://www.sqlite.org/src/info/369d57fb8e5ccdff06f1">369d57fb8e5ccdff06f1</a> +<p><b>Test, Debug, and Analysis Changes:</b> +<li>Show ASCII-art abstract syntax tree diagrams using the ".selecttrace" + and ".wheretrace" commands in the + <a href="../cli.html">command-line shell</a> when compiled with <a href="../compile.html#debug">SQLITE_DEBUG</a>, SQLITE_ENABLE_SELECTTRACE, + and SQLITE_ENABLE_WHERETRACE. Also provide the sqlite3TreeViewExpr() and + sqlite3TreeViewSelect() entry points that can be invoked from with the + debugger to show the parse tree when stopped at a breakpoint. +<li>Drop support for SQLITE_ENABLE_TREE_EXPLAIN. The SELECTTRACE mechanism provides + more useful diagnostics information. +<li>New options to the <a href="../cli.html">command-line shell</a> for configuring auxiliary + memory usage: --pagecache, --lookaside, and --scratch. +<li>SQLITE_SOURCE_ID: "2014-10-17 11:24:17 e4ab094f8afce0817f4074e823fabe59fc29ebb4" +<li>SHA1 for sqlite3.c: 56dcf5e931a9e1fa12fc2d600cd91d3bf9b639cd + + +</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> + + |