183 lines
9.2 KiB
HTML
183 lines
9.2 KiB
HTML
<!DOCTYPE html>
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<title>SQLite Release 3.27.0 On 2019-02-07</title>
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<body>
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Small. Fast. Reliable.<br>Choose any three.
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<h2>SQLite Release 3.27.0 On 2019-02-07</h2><p><ol class='lessindent'>
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<li>Added the <a href="../lang_vacuum.html#vacuuminto">VACUUM INTO</a> command
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<li>Issue an SQLITE_WARNING message on the <a href="../errlog.html">error log</a> if a
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<a href="../quirks.html#dblquote">double-quoted string literal</a> is used.
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<li>The <a href="../c3ref/expanded_sql.html">sqlite3_normalized_sql()</a> interface works on any prepared statement
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created using <a href="../c3ref/prepare.html">sqlite3_prepare_v2()</a> or <a href="../c3ref/prepare.html">sqlite3_prepare_v3()</a>. It is no
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longer necessary to use <a href="../c3ref/prepare.html">sqlite3_prepare_v3()</a> with <a href="../c3ref/c_prepare_normalize.html#sqlitepreparenormalize">SQLITE_PREPARE_NORMALIZE</a>
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in order to use <a href="../c3ref/expanded_sql.html">sqlite3_normalized_sql()</a>.
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<li>Added the remove_diacritics=2 option to <a href="../fts3.html">FTS3</a> and <a href="../fts5.html">FTS5</a>.
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<li>Added the <a href="../c3ref/c_prepare_normalize.html#sqlitepreparenovtab">SQLITE_PREPARE_NO_VTAB</a> option to <a href="../c3ref/prepare.html">sqlite3_prepare_v3()</a>.
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Use that option to prevent circular references to <a href="../vtab.html#xshadowname">shadow tables</a> from
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causing resource leaks.
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<li>Enhancements to the <a href="../c3ref/deserialize.html">sqlite3_deserialize()</a> interface:
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<ol type="a">
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<li> Add the <a href="../c3ref/c_fcntl_begin_atomic_write.html#sqlitefcntlsizelimit">SQLITE_FCNTL_SIZE_LIMIT</a> <a href="../c3ref/file_control.html">file-control</a> for
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setting an upper bound on the size of the in-memory database created
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by sqlite3_deserialize. The default upper bound is 1GiB, or whatever
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alternative value is specified by
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<a href="../c3ref/config.html">sqlite3_config</a>(<a href="../c3ref/c_config_covering_index_scan.html#sqliteconfigmemdbmaxsize">SQLITE_CONFIG_MEMDB_MAXSIZE</a>)
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and/or <a href="../compile.html#memdb_default_maxsize">SQLITE_MEMDB_DEFAULT_MAXSIZE</a>.
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<li> Honor the <a href="../c3ref/c_deserialize_freeonclose.html">SQLITE_DESERIALIZE_READONLY</a> flag, which was previously described
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in the documentation, but was previously a no-op.
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<li> Enhance the "deserialize" command of the <a href="../tclsqlite.html">TCL Interface</a> to give it
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new "--maxsize N" and "--readonly BOOLEAN" options.
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</ol>
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<li>Enhancements to the <a href="../cli.html">CLI</a>, mostly to support testing and debugging
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of the SQLite library itself:
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<ol type="a">
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<li> Add support for ".open --hexdb". The
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"<a href="https://sqlite.org/src/doc/trunk/tool/dbtotxt.md">dbtotxt</a>" utility
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program used to generate the text for the "hexdb" is added to the
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source tree.
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<li> Add support for the "--maxsize N" option on ".open --deserialize".
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<li> Add the "--memtrace" command-line option, to show all memory allocations
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and deallocations.
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<li> Add the ".eqp trace" option on builds with SQLITE_DEBUG, to enable
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bytecode program listing with indentation and
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<a href="../pragma.html#pragma_vdbe_trace">PRAGMA vdbe_trace</a> all in one step.
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<li> Add the ".progress" command for accessing
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the <a href="../c3ref/progress_handler.html">sqlite3_progress_handler()</a> interface.
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<li> Add the "--async" option to the ".backup" command.
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<li> Add options "--expanded", "--normalized", "--plain", "--profile", "--row",
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"--stmt", and "--close" to the ".trace" command.
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</ol>
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<li> Increased robustness against malicious SQL that is run against a
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maliciously corrupted database.
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<p><b>Bug fixes:</b>
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<li>Do not use a partial index to do a table scan on an IN operator.
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Ticket <a href="https://www.sqlite.org/src/info/1d958d90596593a774">1d958d90596593a774</a>.
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<li>Fix the <a href="../optoverview.html#flattening">query flattener</a> so that it works on queries that contain
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subqueries that use <a href="../windowfunctions.html">window functions</a>.
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Ticket <a href="https://www.sqlite.org/src/info/f09fcd17810f65f717">709fcd17810f65f717</a>
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<li>Ensure that ALTER TABLE modifies table and column names embedded in WITH
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clauses that are part of views and triggers.
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<li>Fix a parser bug that prevented the use of parentheses around table-valued
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functions.
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<li>Fix a problem with the <a href="../optoverview.html#or_opt">OR optimization</a> on <a href="../expridx.html">indexes on expressions</a>.
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Ticket <a href="https://www.sqlite.org/src/info/d96eba87698a428c1d">d96eba87698a428c1d</a>.
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<li>Fix a problem with the
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<a href="../optoverview.html#leftjoinreduction">LEFT JOIN strength reduction optimization</a> in which the optimization
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was being applied inappropriately due to an IS NOT NULL operator.
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Ticket <a href="https://www.sqlite.org/src/info/5948e09b8c415bc45d">5948e09b8c415bc45d</a>.
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<li>Fix the <a href="../lang_replace.html">REPLACE</a> command so that it is no longer able to sneak a
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NULL value into a NOT NULL column even if the NOT NULL column has a default
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value of NULL.
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Ticket <a href="https://www.sqlite.org/src/info/e6f1f2e34dceeb1ed6">e6f1f2e34dceeb1ed6</a>
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<li>Fix a problem with the use of <a href="../windowfunctions.html">window functions</a> used within
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<a href="../lang_expr.html#cosub">correlated subqueries</a>.
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Ticket <a href="https://www.sqlite.org/src/info/d0866b26f83e9c55e3">d0866b26f83e9c55e3</a>
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<li>Fix the <a href="../lang_altertable.html#altertabmvcol">ALTER TABLE RENAME COLUMN</a> command so that it works for tables
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that have redundant UNIQUE constraints.
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Ticket <a href="https://www.sqlite.org/src/info/bc8d94f0fbd633fd9a">bc8d94f0fbd633fd9a</a>
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<li>Fix a bug that caused <a href="../lang_corefunc.html#zeroblob">zeroblob</a> values to be truncated when inserted into
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a table that uses an <a href="../expridx.html">expression index</a>.
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Ticket <a href="https://www.sqlite.org/src/info/bb4bdb9f7f654b0bb9">bb4bdb9f7f654b0bb9</a>
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<p><b>Hashes:</b>
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<li>SQLITE_SOURCE_ID: "2019-02-07 17:02:52 97744701c3bd414e6c9d7182639d8c2ce7cf124c4fce625071ae65658ac61713
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"
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<li>SHA3-256 for sqlite3.c: ca011a10ee8515b33e5643444b98ee3d74dc45d3ac766c3700320def52bc6aba
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</ol></p>
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<p>A <a href="../changes.html">complete list of SQLite releases</a>
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in a single page and a <a href="../chronology.html">chronology</a> are both also available.
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A detailed history of every
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check-in is available at
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<a href="http://www.sqlite.org/src/timeline">
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SQLite version control site</a>.</p>
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