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+<!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 3.34.0 On 2020-12-01</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>
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+function toggle_search() {
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+document.getElementById("searchbox").focus()
+}, 30);
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+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";
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+/* Used by the Hide/Show button beside syntax diagrams, to toggle the */
+function hideorshow(btn,obj){
+var x = document.getElementById(obj);
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+if( x.style.display!='none' ){
+x.style.display = 'none';
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+</script>
+<h2>SQLite Release 3.34.0 On 2020-12-01</h2><p><ol class='lessindent'>
+<li> Added the <a href="../c3ref/txn_state.html">sqlite3_txn_state()</a> interface for reporting on the current
+ transaction state of the database connection.
+<li> Enhance <a href="../lang_with.html#recursivecte">recursive common table expressions</a> to support two or more
+ recursive terms as is done by SQL Server, since this helps make
+ <a href="../lang_with.html#rcex3">queries against graphs</a> easier to write and faster to execute.
+<li> Improved error messages on <a href="../lang_createtable.html#ckconst">CHECK constraint</a> failures.
+<li> <a href="../cli.html">CLI</a> enhancements:
+ <ol type="a">
+ <li> The <a href="../cli.html#dotread">.read</a> dot-command now accepts a pipeline in addition to
+ a filename.
+ <li> Added options --data-only and --nosys to the <a href="../cli.html#dump">.dump</a> dot-command.
+ <li> Added the --nosys option to the <a href="../cli.html#dschema">.schema</a> dot-command.
+ <li> Table name quoting works correctly for the <a href="../cli.html#csv">.import</a> dot-command.
+ <li> The <a href="../series.html">generate_series(START,END,STEP)</a> table-valued function
+ extension is now built into the CLI.
+ <li> The <a href="../cli.html#dotdatabases">.databases</a> dot-command now shows the status of each database
+ file as determined by <a href="../c3ref/db_readonly.html">sqlite3_db_readonly()</a> and
+ <a href="../c3ref/txn_state.html">sqlite3_txn_state()</a>.
+ <li> Added the --tabs command-line option that sets
+ <a href="../cli.html#dotmode">.mode tabs</a>.
+ <li> The --init option reports an error if the file named as its argument
+ cannot be opened. The --init option also now honors the --bail option.
+ </ol>
+<li> Query planner improvements:
+ <ol type="a">
+ <li> Improved estimates for the cost of running a DISTINCT operator.
+ <li> When doing an UPDATE or DELETE using a multi-column index where
+ only a few of the earlier columns of the index are useful for the
+ index lookup, postpone doing the main table seek until after all
+ WHERE clause constraints have been evaluated, in case those
+ constraints can be covered by unused later terms of the index,
+ thus avoiding unnecessary main table seeks.
+ <li> The new OP_SeekScan opcode is used to improve performance of
+ multi-column index look-ups when later columns are constrained
+ by an IN operator.
+ </ol>
+<li> The <a href="../lang_transaction.html#immediate">BEGIN IMMEDIATE</a> and <a href="../lang_transaction.html#immediate">BEGIN EXCLUSIVE</a> commands now work even
+ if one or more attached database files are read-only.
+<li> Enhanced <a href="../fts5.html">FTS5</a> to support <a href="../fts5.html#trigramidx">trigram indexes</a>.
+<li> Improved performance of <a href="../wal.html">WAL mode</a> locking primitives in cases where
+ there are hundreds of connections all accessing the same database file
+ at once.
+<li> Enhanced the <a href="../carray.html">carray() table-valued function</a> to include a single-argument
+ form that is bound using the auxiliary <a href="../carray.html#onearg">sqlite3_carray_bind()</a> interface.
+<li> The <a href="../lang_corefunc.html#substr">substr() SQL function</a> can now also be called "substring()" for
+ compatibility with SQL Server.
+<li> The <a href="../syntaxdiagrams.html">syntax diagrams</a> are now implemented as
+ <a href='https://pikchr.org/'>Pikchr</a> scripts and rendered
+ as SVG for improved legibility and ease of maintenance.
+<p><b>Hashes:</b>
+<li>SQLITE_SOURCE_ID: 2020-12-01 16:14:00 a26b6597e3ae272231b96f9982c3bcc17ddec2f2b6eb4df06a224b91089fed5b
+<li>SHA3-256 for sqlite3.c: fbd895b0655a337b2cd657675f314188a4e9fe614444cc63dfeb3f066f674514
+
+
+</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>
+
+