196 lines
8.4 KiB
HTML
196 lines
8.4 KiB
HTML
|
<!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>
|
||
|
|
|
||
|
|
|