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-rw-r--r--doc/src/sgml/config.sgml14
1 files changed, 14 insertions, 0 deletions
diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index a84e60c09b9..76ab72db964 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -5360,6 +5360,20 @@ ANY <replaceable class="parameter">num_sync</replaceable> ( <replaceable class="
</listitem>
</varlistentry>
+ <varlistentry id="guc-enable-distinct-reordering" xreflabel="enable_distinct_reordering">
+ <term><varname>enable_distinct_reordering</varname> (<type>boolean</type>)
+ <indexterm>
+ <primary><varname>enable_distinct_reordering</varname> configuration parameter</primary>
+ </indexterm>
+ </term>
+ <listitem>
+ <para>
+ Enables or disables the query planner's ability to reorder DISTINCT
+ keys to match the input path's pathkeys. The default is <literal>on</literal>.
+ </para>
+ </listitem>
+ </varlistentry>
+
<varlistentry id="guc-enable-gathermerge" xreflabel="enable_gathermerge">
<term><varname>enable_gathermerge</varname> (<type>boolean</type>)
<indexterm>