Alessandro Bonazzi 5c7aa8c1c0 Patch level : 12.0 no-patch
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Aggiunta documentazione di sqlite 3
2020-11-29 00:32:36 +01:00

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<h2>SQLite Release 3.15.0 On 2016-10-14</h2><p><ol class='lessindent'>
<li> Added support for <a href="../rowvalue.html">row values</a>.
<li> Allow <a href="../deterministic.html">deterministic SQL functions</a> in the WHERE clause of a <a href="../partialindex.html">partial index</a>.
<li> Added the "<a href="../uri.html#urimodeof">modeof=<i>filename</i></a>" URI parameter on the unix VFS
<li> Added support for <a href="../c3ref/c_dbconfig_defensive.html#sqlitedbconfigmaindbname">SQLITE_DBCONFIG_MAINDBNAME</a>.
<li> Added the ability to <a href="../lang_vacuum.html">VACUUM</a> an <a href="../lang_attach.html">ATTACH-ed</a> database.
<li> Enhancements to the <a href="../cli.html">command-line shell</a>:
<ol type='a'>
<li> Add the ".testcase" and ".check" <a href="../cli.html#dotcmd">dot-commands</a>.
<li> Added the --new option to the ".open" dot-command, causing
any prior content in the database to be purged prior to
opening.
</ol>
<li> Enhance the <a href="../fts5.html#the_fts5vocab_virtual_table_module">fts5vocab</a> virtual table to handle "ORDER BY term" efficiently.
<li> Miscellaneous micro-optimizations reduce CPU usage by more than 7%
on common workloads. Most optimization in this release has been on the
front-end (<a href="../c3ref/prepare.html">sqlite3_prepare_v2()</a>).
<p><b>Bug Fixes:</b>
<li> The multiply operator now correctly detects 64-bit integer overflow
and promotes to floating point in all corner-cases. Fix for ticket
<a href="https://www.sqlite.org/src/info/1ec41379c9c1e400">1ec41379c9c1e400</a>.
<li> Correct handling of columns with redundant unique indexes when those
columns are used on the LHS of an <a href="../lang_expr.html#in_op">IN operator</a>. Fix for ticket
<a href="https://www.sqlite.org/src/info/0eab1ac759">0eab1ac759</a>.
<li> Skip NULL entries on range queries in <a href="../expridx.html">indexes on expressions</a>.
Fix for ticket
<a href="https://www.sqlite.org/src/tktview/4baa46491212947">4baa46491212947</a>.
<li> Ensure that the <a href="../autoinc.html">AUTOINCREMENT</a> counters in the sqlite_sequence
table are initialized doing "Xfer Optimization" on "INSERT ... SELECT"
statements. Fix for ticket
<a href="https://www.sqlite.org/src/info/7b3328086a5c116c">7b3328086a5c116c</a>.
<li> Make sure the ORDER BY LIMIT optimization
(from check-in <a href="https://www.sqlite.org/src/info/559733b09e9630fa">559733b09e</a>)
works with IN operators on INTEGER PRIMARY KEYs. Fix for ticket
<a href="https://www.sqlite.org/src/info/96c1454cbfd9509">96c1454c</a>
<p><b>Hashes:</b>
<li>SQLITE_SOURCE_ID: "2016-10-14 10:20:30 707875582fcba352b4906a595ad89198d84711d8"
<li>SHA1 for sqlite3.c: fba106f8f6493c66eeed08a2dfff0907de54ae76
</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>