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diff --git a/www/releaselog/3_35_0.html b/www/releaselog/3_35_0.html new file mode 100644 index 0000000..5594d83 --- /dev/null +++ b/www/releaselog/3_35_0.html @@ -0,0 +1,195 @@ +<!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 3.35.0 On 2021-03-12</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 3.35.0 On 2021-03-12</h2><p><ol class='lessindent'> +<li> Added <a href="../lang_mathfunc.html">built-in SQL math functions()</a>. (Requires the + <a href="../compile.html#enable_math_functions">-DSQLITE_ENABLE_MATH_FUNCTIONS</a> compile-time option.) +<li> Added support for <a href="../lang_altertable.html#altertabdropcol">ALTER TABLE DROP COLUMN</a>. +<li> Generalize <a href="../lang_upsert.html">UPSERT</a>: + <ol type="a"> + <li> Allow multiple ON CONFLICT clauses that are evaluated in order, + <li> The final ON CONFLICT clause may omit the conflict target and + yet still use DO UPDATE. + </ol> +<li> Add support for the <a href="../lang_returning.html">RETURNING</a> clause on <a href="../lang_delete.html">DELETE</a>, <a href="../lang_insert.html">INSERT</a>, and + <a href="../lang_update.html">UPDATE</a> statements. +<li> Use less memory when running <a href="../lang_vacuum.html">VACUUM</a> on databases containing very large + TEXT or BLOB values. It is no longer necessary to hold the entire TEXT + or BLOB in memory all at once. +<li> Add support for the <a href="../lang_with.html#mathint">MATERIALIZED</a> and <a href="../lang_with.html#mathint">NOT MATERIALIZED</a> hints when + specifying <a href="../lang_with.html">common table expressions</a>. The default behavior was + formerly NOT MATERIALIZED, but is now changed to MATERIALIZED for + CTEs that are used more than once. +<li> The <a href="../c3ref/c_dbconfig_defensive.html#sqlitedbconfigenabletrigger">SQLITE_DBCONFIG_ENABLE_TRIGGER</a> and <a href="../c3ref/c_dbconfig_defensive.html#sqlitedbconfigenableview">SQLITE_DBCONFIG_ENABLE_VIEW</a> + settings are modified so that they only control triggers and views + in the main database schema or in attached database schemas and not in + the TEMP schema. TEMP triggers and views are always allowed. +<li> Query planner/optimizer improvements: + <ol type="a"> + <li> Enhancements to the <a href="../optoverview.html#minmax">min/max optimization</a> so that it works better + with the IN operator and the OP_SeekScan optimization of the + previous release. + <li> Attempt to process EXISTS operators in the WHERE clause as if + they were IN operators, in cases where this is a valid transformation + and seems likely to improve performance. + <li> Allow UNION ALL sub-queries to be <a href="../optoverview.html#flattening">flattened</a> even if the parent query is a join. + <li> Use an index, if appropriate, on IS NOT NULL expressions in the WHERE clause, + even if STAT4 is disabled. + <li> Expressions of the form "x IS NULL" or "x IS NOT NULL" might be converted to simply + FALSE or TRUE, if "x" is a column that has a "NOT NULL" constraint and is not + involved in an outer join. + <li> Avoid checking foreign key constraints on an UPDATE statement if the UPDATE does + not modify any columns associated with the foreign key. + <li> Allow WHERE terms to be <a href="../optoverview.html#pushdown">pushed down</a> into sub-queries + that contain window functions, + as long as the WHERE term is made up of entirely of constants and copies of expressions + found in the PARTITION BY clauses of all window functions in the sub-query. + </ol> +<li> <a href="../cli.html">CLI</a> enhancements: + <ol type="a"> + <li> Enhance the ".stats" command to accept new arguments "stmt" and + "vmstep", causing prepare statement statistics and only the + virtual-machine step count to be shown, respectively. + <li> Add the ".filectrl data_version" command. + <li> Enhance the ".once" and ".output" commands so that if the destination argument + begins with "|" (indicating that output is redirected into a pipe) then the + argument does not need to be quoted. + </ol> +<li> Bug fixes: + <ol type="a"> + <li> Fix a potential NULL pointer dereference when processing a + syntactically incorrect SELECT statement with a correlated WHERE + clause and a "HAVING 0" clause. (Also fixed in the 3.34.1 patch release.) + <li> Fix a <a href="https://www.sqlite.org/src/info/ee51301f316c09e9">bug in the IN-operator optimization</a> + of version 3.33.0 that can cause an incorrect answer. + <li> Fix incorrect answers from the <a href="../lang_expr.html#like">LIKE operator</a> if the pattern ends with "%" and there + is an "ESCAPE '_'" clause. + </ol> +<p><b>Hashes:</b> +<li>SQLITE_SOURCE_ID: 2021-03-12 15:10:09 acd63062eb06748bfe9e4886639e4f2b54ea6a496a83f10716abbaba4115500b +<li>SHA3-256 for sqlite3.c: 73a740d881735bef9de7f7bce8c9e6b9e57fe3e77fa7d76a6e8fc5c262fbaedf + +</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> + + |