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doc: Fix description about pg_stat_statements.track_planning.

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This commit fixes wrong wording like "a fewer kinds"
in the description about track_planning option.

Back-patch to v13 where pg_stat_statements.track_planning was added.

Author: Justin Pryzby
Reviewed-by: Julien Rouhaud, Fujii Masao
Discussion: https://postgr.es/m/20210418233615.GB7256@telsasoft.com
This commit is contained in:
Fujii Masao 2021-07-07 21:54:47 +09:00
parent 29f45e299e
commit 9d2a775734
1 changed files with 3 additions and 2 deletions
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5
doc/src/sgml/pgstatstatements.sgml
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@ -696,8 +696,9 @@
<varname>pg_stat_statements.track_planning</varname> controls whether
planning operations and duration are tracked by the module.
Enabling this parameter may incur a noticeable performance penalty,
especially when a fewer kinds of queries are executed on many
concurrent connections.
especially when statements with identical query structure are executed
by many concurrent connections which compete to update a small number of
<structname>pg_stat_statements</structname> entries.
The default value is <literal>off</literal>.
Only superusers can change this setting.
</para>