diff options
| -rw-r--r-- | doc/src/sgml/config.sgml | 15 |
1 files changed, 8 insertions, 7 deletions
diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml index 5fb6e13a3c3..18745906cd9 100644 --- a/doc/src/sgml/config.sgml +++ b/doc/src/sgml/config.sgml @@ -4941,13 +4941,14 @@ ANY <replaceable class="parameter">num_sync</replaceable> ( <replaceable class=" <listitem> <para> Enables or disables the query planner's use of partitionwise grouping - or aggregation, which allows grouping or aggregation on a partitioned - tables performed separately for each partition. If the <literal>GROUP - BY</literal> clause does not include the partition keys, only partial - aggregation can be performed on a per-partition basis, and - finalization must be performed later. Because partitionwise grouping - or aggregation can use significantly more CPU time and memory during - planning, the default is <literal>off</literal>. + or aggregation, which allows grouping or aggregation on partitioned + tables to be performed separately for each partition. If the + <literal>GROUP BY</literal> clause does not include the partition + keys, only partial aggregation can be performed on a per-partition + basis, and finalization must be performed later. Because + partitionwise grouping or aggregation can use significantly more CPU + time and memory during planning, the default is + <literal>off</literal>. </para> </listitem> </varlistentry> |