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diff --git a/www/releaselog/3_22_0.html b/www/releaselog/3_22_0.html new file mode 100644 index 0000000..efd2e32 --- /dev/null +++ b/www/releaselog/3_22_0.html @@ -0,0 +1,227 @@ +<!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 3.22.0 On 2018-01-22</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 3.22.0 On 2018-01-22</h2><p><ol class='lessindent'> +<li> The output of <a href="../c3ref/trace_v2.html">sqlite3_trace_v2()</a> now shows each individual SQL statement + run within a trigger. +<li> Add the ability to read from <a href="../wal.html">WAL mode</a> databases even if the application + lacks write permission on the database and its containing directory, as long as + the -shm and -wal files exist in that directory. +<li> Added the <a href="../rtree.html#rtreecheck">rtreecheck()</a> scalar SQL function to the <a href="../rtree.html">R-Tree extension</a>. +<li> Added the <a href="../c3ref/vtab_nochange.html">sqlite3_vtab_nochange()</a> and <a href="../c3ref/value_blob.html">sqlite3_value_nochange()</a> interfaces + to help virtual table implementations optimize UPDATE operations. +<li> Added the <a href="../c3ref/vtab_collation.html">sqlite3_vtab_collation()</a> interface. +<li> Added support for the <a href="../fts5.html#carrotq">"^" initial token syntax</a> in FTS5. +<li> New extensions: +<ol type='a'> + <li> The <a href="../zipfile.html">Zipfile virtual table</a> can read and write a + <a href="https://en.wikipedia.org/wiki/Zip_(file_format)">ZIP Archive</a>. + <li> Added the fsdir(PATH) <a href="../vtab.html#tabfunc2">table-valued function</a> to the + <a href="https://sqlite.org/src/file/ext/misc/fileio.c">fileio.c</a> extension, + for listing the files in a directory. + <li> The <a href="https://sqlite.org/src/file/ext/misc/btreeinfo.c">sqlite_btreeinfo</a> + eponymous virtual table for introspecting and estimating the sizes of + the btrees in a database. + <li> The <a href="https://sqlite.org/src/file/ext/misc/appendvfs.c">Append VFS</a> is a + <a href="../vfs.html#shim">VFS shim</a> that allows an SQLite database to be appended to some other + file. This allows (for example) a database to be appended to an + executable that then opens and reads the database. +</ol> +<li> Query planner enhancements: +<ol type='a'> + <li> The optimization that uses an index to quickly compute an + aggregate min() or max() is extended to work with + <a href="../expridx.html">indexes on expressions</a>. + <li> The decision of whether to implement a FROM-clause subquery + as a co-routine or using <a href="../optoverview.html#flattening">query flattening</a> + now considers whether + the result set of the outer query is "complex" (if it + contains functions or expression subqueries). A complex result + set biases the decision toward the use of co-routines. + <li> The planner avoids query plans that use indexes with unknown + collating functions. + <li> The planner omits unused LEFT JOINs even if they are not the + right-most joins of a query. +</ol> +<li> Other performance optimizations: +<ol type='a'> + <li> A smaller and faster implementation of text to floating-point + conversion subroutine: sqlite3AtoF(). + <li> The <a href="../lemon.html">Lemon parser generator</a> creates a faster parser. + <li> Use the strcspn() C-library routine to speed up the LIKE and + GLOB operators. +</ol> +<li> Improvements to the <a href="../cli.html">command-line shell</a>: +<ol type='a'> + <li> The ".schema" command shows the structure of virtual tables. + <li> Added support for reading and writing + <a href="../sqlar.html">SQLite Archive</a> files using + the <a href="../cli.html#sqlar">.archive command</a>. + <li> Added the experimental <a href="../cli.html#expert">.expert command</a> + <li> Added the ".eqp trigger" variant of the ".eqp" command + <li> Enhance the ".lint fkey-indexes" command so that it works with + <a href="../withoutrowid.html">WITHOUT ROWID</a> tables. + <li> If the filename argument to the shell is a ZIP archive rather than + an SQLite database, then the shell automatically opens that ZIP + archive using the <a href="../zipfile.html">Zipfile virtual table</a>. + <li> Added the <a href="../cli.html#editfunc">edit() SQL function</a>. + <li> Added the <a href="../cli.html#exexcel*">.excel command</a> to simplify exporting + database content to a spreadsheet. + <li> Databases are opened using + <a href="https://sqlite.org/src/file/ext/misc/appendvfs.c">Append VFS</a> when + the --append flag is used on the command line or with the + .open command. +</ol> +<li> Enhance the <a href="../compile.html#enable_update_delete_limit">SQLITE_ENABLE_UPDATE_DELETE_LIMIT</a> compile-time option so + that it works for <a href="../withoutrowid.html">WITHOUT ROWID</a> tables. +<li> Provide the <a href="../lang_corefunc.html#sqlite_offset">sqlite_offset(X)</a> SQL function that returns + the byte offset into the database file to the beginning of the record + holding value X, when compiling with <a href="../compile.html#enable_offset_sql_func">-DSQLITE_ENABLE_OFFSET_SQL_FUNC</a>. +<li> Bug fixes: +<ol type='a'> + <li> Infinite loop on an UPDATE that uses an OR operator in the WHERE clause. + Problem introduced with 3.17.0 and reported on the mailing list about + one year later. Ticket + <a href="https://www.sqlite.org/src/info/47b2581aa9bfecec">47b2581aa9bfecec</a>. + <li> Incorrect query results when the skip-ahead-distinct optimization is + used. + Ticket <a href="https://sqlite.org/src/info/ef9318757b152e3a">ef9318757b152e3a</a>. + <li> Incorrect query results on a join with a ORDER BY DESC. Ticket + <a href="https://sqlite.org/src/info/123c9ba32130a6c9">123c9ba32130a6c9</a>. + <li> Inconsistent result set column names between CREATE TABLE AS + and a simple SELECT. Ticket + <a href="https://sqlite.org/src/info/3b4450072511e621">3b4450072511e621</a> + <li> Assertion fault when doing REPLACE on an index on an expression. + Ticket <a href="https://sqlite.org/src/info/dc3f932f5a147771">dc3f932f5a147771</a> + <li> Assertion fault when doing an IN operator on a constant index. + Ticket <a href="https://sqlite.org/src/info/aa98619ad08ddcab">aa98619ad08ddcab</a> +</ol> +<p><b>Hashes:</b> +<li>SQLITE_SOURCE_ID: "2018-01-22 18:45:57 0c55d179733b46d8d0ba4d88e01a25e10677046ee3da1d5b1581e86726f2171d" +<li>SHA3-256 for sqlite3.c: 206df47ebc49cd1710ac0dd716ce5de5854826536993f4feab7a49d136b85069 + + +</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> + + |