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<title>SQLite Release 3.29.0 On 2019-07-10</title>
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<h2>SQLite Release 3.29.0 On 2019-07-10</h2><p><ol class='lessindent'>
<li> Added the <a href="../c3ref/c_dbconfig_defensive.html#sqlitedbconfigdqsdml">SQLITE_DBCONFIG_DQS_DML</a> and <a href="../c3ref/c_dbconfig_defensive.html#sqlitedbconfigdqsddl">SQLITE_DBCONFIG_DQS_DDL</a>
actions to <a href="../c3ref/db_config.html">sqlite3_db_config()</a> for activating and deactivating
the <a href="../quirks.html#dblquote">double-quoted string literal</a> misfeature. Both default to "on"
for legacy compatibility, but developers are encouraged to turn them
"off", perhaps using the <a href="../compile.html#dqs">-DSQLITE_DQS=0</a> compile-time option.
<li> <a href="../compile.html#dqs">-DSQLITE_DQS=0</a> is now a <a href="../compile.html#rcmd">recommended compile-time option</a>.
<li> Improvements to the <a href="../optoverview.html">query planner</a>:
<ol type="a">
<li> Improved optimization of AND and OR operators when one or the other
operand is a constant.
<li> Enhancements to the <a href="../optoverview.html#like_opt">LIKE optimization</a> for cases when the left-hand
side column has numeric affinity.
</ol>
<li> Added the "<a href="https://sqlite.org/src/file/ext/misc/dbdata.c">sqlite_dbdata</a>"
virtual table for extracting raw low-level content from an SQLite database,
even a database that is corrupt.
<li> Improvements to rounding behavior, so that the results of rounding
binary numbers using the <a href="../lang_corefunc.html#round">round()</a> function are closer to what people
who are used to thinking in decimal actually expect.
<li> Enhancements to the <a href="../cli.html">CLI</a>:
<ol type="a">
<li> Add the ".recover" command which tries to recover as much content
as possible from a corrupt database file.
<li> Add the ".filectrl" command useful for testing.
<li> Add the long-standing ".testctrl" command to the ".help" menu.
<li> Added the ".dbconfig" command
</ol>
<p><b>Hashes:</b>
<li>SQLITE_SOURCE_ID: 2019-07-10 17:32:03 fc82b73eaac8b36950e527f12c4b5dc1e147e6f4ad2217ae43ad82882a88bfa6
<li>SHA3-256 for sqlite3.c: d9a5daf7697a827f4b2638276ce639fa04e8e8bb5fd3a6b683cfad10f1c81b12
</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>
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