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1 parent aa38434 commit 321fa6aCopy full SHA for 321fa6a
doc/src/sgml/pgstatstatements.sgml
@@ -607,6 +607,9 @@
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<para>
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<varname>pg_stat_statements.track_planning</varname> controls whether
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planning operations and duration are tracked by the module.
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+ Enabling this parameter may incur a noticeable performance penalty,
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+ especially when a fewer kinds of queries are executed on many
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+ concurrent connections.
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The default value is <literal>off</literal>.
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Only superusers can change this setting.
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</para>
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