203 lines
9.4 KiB
HTML
203 lines
9.4 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 3.22.0 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;
|
|
}
|
|
</script>
|
|
</div>
|
|
<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="http://www.sqlite.org/src/timeline">
|
|
SQLite version control site</a>.</p>
|
|
|