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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-05-05 17:28:19 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-05-05 17:28:19 +0000
commit18657a960e125336f704ea058e25c27bd3900dcb (patch)
tree17b438b680ed45a996d7b59951e6aa34023783f2 /www/releaselog/3_35_5.html
parentInitial commit. (diff)
downloadsqlite3-18657a960e125336f704ea058e25c27bd3900dcb.tar.xz
sqlite3-18657a960e125336f704ea058e25c27bd3900dcb.zip
Adding upstream version 3.40.1.upstream/3.40.1upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
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--- /dev/null
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@@ -0,0 +1,266 @@
+<!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 3.35.5 On 2021-04-19</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.
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+<li><a href="../index.html">Home</a>
+<li class='mobileonly'><a href="javascript:void(0)" onclick='toggle_div("submenu")'>Menu</a>
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+<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>
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+<li><a href='../download.html'>Download</a>
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+<li><a href='../prosupport.html'>Purchase</a>
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+<form method="GET" action="../search">
+<select name="s" id="searchtype">
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+window.onbeforeunload = function(e){div_off("submenu");}
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+/* Search is accomplished using CGI and will not work without it. */
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+document.getElementById("search_menubutton").style.display = "none";
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+</script>
+<h2>SQLite Release 3.35.5 On 2021-04-19</h2><p><b>Changes in version 3.35.0 (2021-03-12):</b></p>
+<p><ol class='lessindent'>
+<li value='1'> 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>
+</ol>
+<p><b>Additional changes in version 3.35.1 (2021-03-15):</b></p>
+<p><ol class='lessindent'>
+<li value='11'> Fix <a href="https://www.sqlite.org/src/info/1c24a659e6d7f3a1">a bug</a> in the new DROP COLUMN
+ feature when used on columns that are indexed and that are quoted in the index
+ definition.
+<li> Improve the built-in documentation for the <a href="../cli.html#dump">.dump</a> command in the <a href="../cli.html">CLI</a>.
+</ol>
+<p><b>Additional changes in version 3.35.2 (2021-03-17):</b></p>
+<p><ol class='lessindent'>
+<li value='13'> Fix a problem in the
+ <a href="http://www.sqlite.org/src/file/ext/misc/appendvfs.c">appendvfs.c</a>
+ extension that was introduced into version 3.35.0.
+<li> Ensure that date/time functions with no arguments (which generate
+ responses that depend on the current time) are treated as
+ <a href="../deterministic.html">non-deterministic functions</a>. Ticket
+ <a href="https://sqlite.org/src/info/2c6c8689fb5f3d2f">2c6c8689fb5f3d2f</a>
+<li> Fix a problem in the <a href="../sqldiff.html">sqldiff</a> utility program having to do with
+ unusual whitespace characters in a <a href="../vtab.html">virtual table</a> definition.
+<li> Limit the new UNION ALL optimization described by item 8c in the
+ 3.35.0 release so that it does not try to make too many new subqueries.
+ See <a href="https://sqlite.org/forum/forumpost/140a67d3d2">forum thread 140a67d3d2</a>
+ for details.
+</ol>
+<p><b>Additional changes in version 3.35.3 (2021-03-26):</b></p>
+<p><ol class='lessindent'>
+<li value='17'> Enhance the OP_OpenDup opcode of the <a href="../opcode.html">bytecode engine</a> so that it works even if the
+ cursor being duplicated itself came from OP_OpenDup. Fix for
+ <a href="https://www.sqlite.org/src/info/bb8a9fd4a9b7fce5">ticket bb8a9fd4a9b7fce5</a>.
+ This problem only came to light due to the recent MATERIALIZED hint enhancement.
+<li> When materializing correlated <a href="../lang_with.html">common table expressions</a>, do so separately for each
+ use case, as that is required for correctness. This fixes a problem that was
+ introduced by the MATERIALIZED hint enhancement.
+<li> Fix a problem in the filename normalizer of the unix <a href="../vfs.html">VFS</a>.
+<li> Fix the <a href="../cli.html#dotmode">"box" output mode</a> in the <a href="../cli.html">CLI</a> so that it works with statements that
+ returns one or more rows of zero columns (such as <a href="../pragma.html#pragma_incremental_vacuum">PRAGMA incremental_vacuum</a>).
+ <a href="https://sqlite.org/forum/forumpost/afbbcb5b72">Forum post afbbcb5b72</a>.
+<li> Improvements to error messages generated by faulty common table expressions.
+ <a href="https://sqlite.org/forum/forumpost/aa5a0431c99e631">Forum post aa5a0431c99e</a>.
+<li> Fix some incorrect assert() statements.
+<li> Fix to the <a href="../syntax/select-stmt.html">SELECT statement syntax diagram</a> so that the FROM clause
+ syntax is shown correctly.
+ <a href="https://sqlite.org/forum/forumpost/9ed02582fe">Forum post 9ed02582fe</a>.
+<li> Fix the EBCDIC character classifier so that it understands newlines as whitespace.
+ <a href="https://sqlite.org/forum/forumpost/58540ce22dcd5fdcd">Forum post 58540ce22dcd</a>.
+<li> Improvements the <a href="../vtab.html#xbestindex">xBestIndex</a> method in the implementation of the
+ (unsupported) <a href="https://sqlite.org/src/file/ext/misc/wholenumber.c">wholenumber virtual table</a>
+ extension so that it does a better job of convincing the query planner to
+ avoid trying to materialize a table with an infinite number of rows.
+ <a href="https://sqlite.org/forum/forumpost/b52a020ce4">Forum post b52a020ce4</a>.
+</ol>
+<p><b>Additional changes in version 3.35.4 (2021-04-02):</b></p>
+<p><ol class='lessindent'>
+<li value='26'> Fix a defect in the query planner optimization identified by
+ item 8b above. Ticket
+ <a href="https://sqlite.org/src/info/de7db14784a08053">de7db14784a08053</a>.
+<li> Fix a defect in the new <a href="../lang_returning.html">RETURNING</a> syntax. Ticket
+ <a href="https://sqlite.org/src/info/132994c8b1063bfb">132994c8b1063bfb</a>.
+<li> Fix the new <a href="../lang_returning.html">RETURNING</a> feature so that it raises an error if one of
+ the terms in the RETURNING clause references a unknown table, instead
+ of silently ignoring that error.
+<li> Fix an assertion associated with aggregate function processing that
+ was incorrectly triggered by the <a href="../optoverview.html#pushdown">push-down optimization</a>.
+</ol>
+<p><b>Additional changes in version 3.35.5 (2021-04-19):</b></p>
+<p><ol class='lessindent'>
+<li value='30'> Fix defects in the new ALTER TABLE DROP COLUMN feature that could
+ corrupt the database file.
+<li> Fix an obscure query optimizer problem that might cause an incorrect
+ query result.
+<p><b>Hashes:</b>
+<li>SQLITE_SOURCE_ID: 2021-04-19 18:32:05 1b256d97b553a9611efca188a3d995a2fff712759044ba480f9a0c9e98fae886
+<li>SHA3-256 for sqlite3.c: e42291343e8f03940e57fffcf1631e7921013b94419c2f943e816d3edf4e1bbe
+
+</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>
+
+
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-19 01:19:39 +0000