From a26f043368173c1b690ed0d170f2d6286ba9f898 Mon Sep 17 00:00:00 2001 From: Bharath Rupireddy Date: Tue, 20 Apr 2021 13:32:02 +0530 Subject: [PATCH v1] Move parallel_leader_participation to Resource Consumption Category parallel_leader_partiticipation GUC is rightly categorized as Resource Usage/Asynchronous Behavior parameter in the code, but in the docs, it is still under Query Planning/Other Planner Options category. Just move it to the correct place i.e. under Resource Consumption/Asynchronous Behaviour. --- doc/src/sgml/config.sgml | 46 ++++++++++++++++++++-------------------- 1 file changed, 23 insertions(+), 23 deletions(-) diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml index 776ab1a8c8..a4dcee1fc8 100644 --- a/doc/src/sgml/config.sgml +++ b/doc/src/sgml/config.sgml @@ -2520,6 +2520,29 @@ include_dir 'conf.d' + + + parallel_leader_participation (boolean) + + parallel_leader_participation configuration parameter + + + + + Allows the leader process to execute the query plan under + Gather and Gather Merge nodes + instead of waiting for worker processes. The default is + on. Setting this value to off + reduces the likelihood that workers will become blocked because the + leader is not reading tuples fast enough, but requires the leader + process to wait for worker processes to start up before the first + tuples can be produced. The degree to which the leader can help or + hinder performance depends on the plan type, number of workers and + query duration. + + + + max_parallel_maintenance_workers (integer) @@ -5889,29 +5912,6 @@ SELECT * FROM parent WHERE key = 2400; - - - parallel_leader_participation (boolean) - - parallel_leader_participation configuration parameter - - - - - Allows the leader process to execute the query plan under - Gather and Gather Merge nodes - instead of waiting for worker processes. The default is - on. Setting this value to off - reduces the likelihood that workers will become blocked because the - leader is not reading tuples fast enough, but requires the leader - process to wait for worker processes to start up before the first - tuples can be produced. The degree to which the leader can help or - hinder performance depends on the plan type, number of workers and - query duration. - - - - plan_cache_mode (enum) -- 2.25.1