diff options
Diffstat (limited to 'doc/src')
| -rw-r--r-- | doc/src/sgml/config.sgml | 31 |
1 files changed, 8 insertions, 23 deletions
diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml index 29088215603..783bf7a12ba 100644 --- a/doc/src/sgml/config.sgml +++ b/doc/src/sgml/config.sgml @@ -4546,23 +4546,6 @@ ANY <replaceable class="parameter">num_sync</replaceable> ( <replaceable class=" </listitem> </varlistentry> - <varlistentry id="guc-enable-groupingsets-hash-disk" xreflabel="enable_groupingsets_hash_disk"> - <term><varname>enable_groupingsets_hash_disk</varname> (<type>boolean</type>) - <indexterm> - <primary><varname>enable_groupingsets_hash_disk</varname> configuration parameter</primary> - </indexterm> - </term> - <listitem> - <para> - Enables or disables the query planner's use of hashed aggregation plan - types for grouping sets when the total size of the hash tables is - expected to exceed <varname>work_mem</varname>. See <xref - linkend="queries-grouping-sets"/>. The default is - <literal>off</literal>. - </para> - </listitem> - </varlistentry> - <varlistentry id="guc-enable-hashagg" xreflabel="enable_hashagg"> <term><varname>enable_hashagg</varname> (<type>boolean</type>) <indexterm> @@ -4577,17 +4560,19 @@ ANY <replaceable class="parameter">num_sync</replaceable> ( <replaceable class=" </listitem> </varlistentry> - <varlistentry id="guc-enable-hashagg-disk" xreflabel="enable_hashagg_disk"> - <term><varname>enable_hashagg_disk</varname> (<type>boolean</type>) + <varlistentry id="guc-hashagg-avoid-disk-plan" xreflabel="hashagg_avoid_disk_plan"> + <term><varname>hashagg_avoid_disk_plan</varname> (<type>boolean</type>) <indexterm> - <primary><varname>enable_hashagg_disk</varname> configuration parameter</primary> + <primary><varname>hashagg_avoid_disk_plan</varname> configuration parameter</primary> </indexterm> </term> <listitem> <para> - Enables or disables the query planner's use of hashed aggregation plan - types when the memory usage is expected to exceed - <varname>work_mem</varname>. The default is <literal>on</literal>. + If set to <literal>on</literal>, causes the planner to avoid choosing + hashed aggregation plans that are expected to use the disk. If hashed + aggregation is chosen, it may still require the use of disk at + execution time, even if this parameter is enabled. The default is + <literal>off</literal>. </para> </listitem> </varlistentry> |