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<h2>SQLite Release 3.31.0 On 2020-01-22</h2><p><ol class='lessindent'>
<li>Add support for <a href="../gencol.html">generated columns</a>.
<li>Add the <a href="../c3ref/hard_heap_limit64.html">sqlite3_hard_heap_limit64()</a> interface and the corresponding
<a href="../pragma.html#pragma_hard_heap_limit">PRAGMA hard_heap_limit</a> command.
<li>Enhance the <a href="../pragma.html#pragma_function_list">function_list pragma</a> to show the number of arguments on each
function, the type of function (scalar, aggregate, window), and the function
property flags <a href="../c3ref/c_deterministic.html#sqlitedeterministic">SQLITE_DETERMINISTIC</a>, <a href="../c3ref/c_deterministic.html#sqlitedirectonly">SQLITE_DIRECTONLY</a>,
<a href="../c3ref/c_deterministic.html#sqliteinnocuous">SQLITE_INNOCUOUS</a>, and/or <a href="../c3ref/c_deterministic.html#sqlitesubtype">SQLITE_SUBTYPE</a>.
<li>Add the <a href="../dbstat.html#dbstatagg">aggregated mode</a> feature to the
<a href="../dbstat.html">DBSTAT virtual table</a>.
<li>Add the <a href="../c3ref/open.html#opennofollow">SQLITE_OPEN_NOFOLLOW</a> option to <a href="../c3ref/open.html">sqlite3_open_v2()</a> that
prevents SQLite from opening symbolic links.
<li>Added the "#-N" array notation for <a href="../json1.html#jsonpath">JSON function path arguments</a>.
<li>Added the <a href="../c3ref/c_dbconfig_defensive.html#sqlitedbconfigtrustedschema">SQLITE_DBCONFIG_TRUSTED_SCHEMA</a> connection setting which is
also controllable via the new <a href="../pragma.html#pragma_trusted_schema">trusted_schema pragma</a> and at compile-time
using the <a href="../compile.html#trusted_schema">-DSQLITE_TRUSTED_SCHEMA</a> compile-time option.
<li>Added APIs <a href="../c3ref/filename_database.html">sqlite3_filename_database()</a>, <a href="../c3ref/filename_database.html">sqlite3_filename_journal()</a>, and
<a href="../c3ref/filename_database.html">sqlite3_filename_wal()</a> which are useful for specialized extensions.
<li>Add the <a href="../c3ref/uri_boolean.html">sqlite3_uri_key()</a> interface.
<li>Upgraded the <a href="../c3ref/uri_boolean.html">sqlite3_uri_parameter()</a> function so that it works with the
rollback journal or WAL filename in addition to the database filename.
<li>Provide the ability to tag <a href="../appfunc.html">application-defined SQL functions</a> with
new properties <a href="../c3ref/c_deterministic.html#sqliteinnocuous">SQLITE_INNOCUOUS</a> or <a href="../c3ref/c_deterministic.html#sqlitedirectonly">SQLITE_DIRECTONLY</a>.
<li>Add new verbs to <a href="../c3ref/vtab_config.html">sqlite3_vtab_config()</a> so that the <a href="../vtab.html#xconnect">xConnect</a> method
of virtual tables can declare the virtual table as
<a href="../c3ref/c_vtab_constraint_support.html#sqlitevtabinnocuous">SQLITE_VTAB_INNOCUOUS</a> or <a href="../c3ref/c_vtab_constraint_support.html#sqlitevtabdirectonly">SQLITE_VTAB_DIRECTONLY</a>.
<li>Faster response to <a href="../c3ref/interrupt.html">sqlite3_interrupt()</a>.
<li>Added the <a href="https://sqlite.org/src/file/ext/misc/uuid.c">uuid.c</a> extension module
implementing functions for processing RFC-4122 UUIDs.
<li>The <a href="../malloc.html#lookaside">lookaside memory allocator</a> is enhanced to support two separate memory
pools with different sized allocations in each pool. This allows more memory
allocations to be covered by lookaside while at the same time reducing the
heap memory usage to 48KB per connection, down from 120KB.
<li>The <a href="../pragma.html#pragma_legacy_file_format">legacy_file_format pragma</a> is deactivated. It is now a no-op. In its place,
the <a href="../c3ref/c_dbconfig_defensive.html#sqlitedbconfiglegacyfileformat">SQLITE_DBCONFIG_LEGACY_FILE_FORMAT</a> option to <a href="../c3ref/db_config.html">sqlite3_db_config()</a> is
provided. The legacy_file_format pragma is deactivated because (1) it is
rarely useful and (2) it is incompatible with <a href="../lang_vacuum.html">VACUUM</a> in schemas that have
tables with both generated columns and descending indexes.
Ticket <a href="https://www.sqlite.org/src/info/6484e6ce678fffab">6484e6ce678fffab</a>
<p><b>Hashes:</b>
<li>SQLITE_SOURCE_ID: 2020-01-22 18:38:59 f6affdd41608946fcfcea914ece149038a8b25a62bbe719ed2561c649b86d824
<li>SHA3-256 for sqlite3.c: a5fca0b9f8cbf80ac89b97193378c719d4af4b7d647729d8df9c0c0fca7b1388
</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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