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doc: move hash performance item into index section

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The requirement to rebuild pg_upgrade-ed hash indexes was kept in the
incompatibilities section.

Reported-by: Amit Kapila
This commit is contained in:
Bruce Momjian
2017-04-24 23:29:14 -04:00
parent b007b1af20
commit cef5dbbf2b
1 changed files with 27 additions and 15 deletions
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42
doc/src/sgml/release-10.sgml
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@ -49,26 +49,14 @@
<listitem>
<!--
Author: Robert Haas <rhaas@postgresql.org>
2016-11-30 [6d46f4783] Improve hash index bucket split behavior.
Author: Robert Haas <rhaas@postgresql.org>
2017-02-07 [293e24e50] Cache hash index's metapage in rel->rd_amcache.
Author: Robert Haas <rhaas@postgresql.org>
2017-02-27 [b0f18cb77] hash: Refactor bucket squeeze code.
Author: Robert Haas <rhaas@postgresql.org>
2017-02-27 [30df93f69] hash: Refactor overflow page allocation.
Author: Robert Haas <rhaas@postgresql.org>
2017-04-03 [ea69a0dea] Expand hash indexes more gradually.
Created from "Improve hash bucket split performance" item
-->
<para>
Improve hash bucket split performance by reducing locking requirements
(Amit Kapila, Mithun Cy)
<application>pg_upgrade</>-ed hash indexes from previous major Postgres versions must be rebuilt.
</para>
<para>
Also cache hash index meta-information for faster lookups. Additional
hash performance improvements have also been made. <application>pg_upgrade</>'d hash
indexes from previous major Postgres versions must be rebuilt.
Major hash index performance improvements necessitated this requirement.
</para>
</listitem>
@ -475,6 +463,30 @@ warning message about their use.
</para>
</listitem>
<listitem>
<!--
Author: Robert Haas <rhaas@postgresql.org>
2016-11-30 [6d46f4783] Improve hash index bucket split behavior.
Author: Robert Haas <rhaas@postgresql.org>
2017-02-07 [293e24e50] Cache hash index's metapage in rel->rd_amcache.
Author: Robert Haas <rhaas@postgresql.org>
2017-02-27 [b0f18cb77] hash: Refactor bucket squeeze code.
Author: Robert Haas <rhaas@postgresql.org>
2017-02-27 [30df93f69] hash: Refactor overflow page allocation.
Author: Robert Haas <rhaas@postgresql.org>
2017-04-03 [ea69a0dea] Expand hash indexes more gradually.
-->
<para>
Improve hash bucket split performance by reducing locking requirements
(Amit Kapila, Mithun Cy)
</para>
<para>
Also cache hash index meta-information for faster lookups. Additional
hash performance improvements have also been made.
</para>
</listitem>
<listitem>
<!--
Author: Robert Haas <rhaas@postgresql.org>