New commands are <command><link linkend="SQL-CREATESTATISTICS">CREATE</></>,
<command><link linkend="SQL-ALTERSTATISTICS">ALTER</></>, and
<command><link linkend="SQL-DROPSTATISTICS">DROP STATISTICS</></>. This is helpful in
-estimating query memory usage and ... HOW IS RATIO USED?
+estimating query memory usage and when combining the statistics from
+individual columns.
</para>
</listitem>
</para>
</listitem>
-<listitem>
-<!--
-Author: Robert Haas <rhaas@postgresql.org>
-2017-03-16 [b30fb56b0] postgres_fdw: Push down <literal>FULL JOIN</>s with restriction clau
--->
-<para>
-Improve optimization of <literal>FULL JOIN</> queries containing subqueries in the
-<literal>FROM</> clause (Etsuro Fujita)
-</para>
-</listitem>
-
<listitem>
<!--
Author: Tom Lane <tgl@sss.pgh.pa.us>
-->
<para>
Allow explicit control over <command><link linkend="SQL-EXPLAIN">EXPLAIN</></>'s display of planning and execution
-time (Stephen Frost)
+time (Ashutosh Bapat)
</para>
<para>
</para>
</listitem>
+<listitem>
+<!--
+Author: Robert Haas <rhaas@postgresql.org>
+2017-03-16 [b30fb56b0] postgres_fdw: Push down <literal>FULL JOIN</>s with restriction clau
+-->
+<para>
+Allow push down of <literal>FULL JOIN</> queries containing subqueries in the
+<literal>FROM</> clause to foreign servers (Etsuro Fujita)
+</para>
+</listitem>
+
<listitem>
<!--
Author: Heikki Linnakangas <heikki.linnakangas@iki.fi>