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docs: PG 12 docs, clarify btree index changes

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Reported-by: Peter Geoghegan

Discussion: https://postgr.es/m/CAH2-WzkSYOM1GJVGtAbRW-OqymoCD=QWYG6ro+GaoOW-jPRuDQ@mail.gmail.com
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Bruce Momjian 2019-05-10 21:03:31 -04:00
parent b299efaea4
commit 809e248299
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doc/src/sgml/release-12.sgml
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@ -570,7 +570,9 @@ Improve speed of btree index insertions (Alexander Korotkov, Peter Geoghegan)
</para> </para>
<para> <para>
LOOKUP, INDEX CLEANUP IMPROVEMENTS? The new code improves the space-efficiency of page splits, reduces locking
overhead, and gives better performance for <command>UPDATE</command>s
and <command>DELETE</command>s on indexes with many duplicates.
</para> </para>
</listitem> </listitem>