<listitem>
<!--
2015-11-06 [a76ef15d9] Add sort support routine for the UUID data type.
2016-02-03 [b47b4dbf6] Extend sortsupport for text to more opclasses.
2016-02-17 [f1f5ec1ef] Reuse abbreviated keys in ordered [set] aggregates.
--> <para> Speed up sorting of <type>uuid</>, <type>bytea</>, and <type>char(n)</> fields by using
<quote>abbreviated</>keys (Peter Geoghegan) </para>
<para> Support for abbreviated keys has also been added to the non-default operator classes
<literal>text_pattern_ops</>, <literal>varchar_pattern_ops</>, and <literal>bpchar_pattern_ops</>.
Processingof ordered-set aggregates can also now exploit abbreviated keys. </para> </listitem>
Is it really sensible to group f1f5ec1ef together with the others? I
think that one should be its own entry.
--
Álvaro Herrera http://www.2ndQuadrant.com/
PostgreSQL Development, 24x7 Support, Remote DBA, Training & Services
