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Commitf963b5b

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author
Amit Kapila
committed
Fix buffer usage stats for nodes above Gather Merge.
Commit85c9d34 addressed a similar problem for Gather and GatherMerge nodes but forgot to account for nodes above parallel nodes. Thisstill works for nodes above Gather node because we shut down the workersfor Gather node as soon as there are no more tuples. We can do a similarthing for Gather Merge as well but it seems better to account for statsduring nodes shutdown after completing the execution.Reported-by: Stéphane Lorek, Jehan-Guillaume de RorthaisAuthor: Jehan-Guillaume de Rorthais <jgdr@dalibo.com>Reviewed-by: Amit KapilaBackpatch-through: 10, where it was introducedDiscussion:https://postgr.es/m/20200718160206.584532a2@firost
1 parentd8ec3b1 commitf963b5b

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‎src/backend/executor/execProcnode.c

Lines changed: 2 additions & 2 deletions
Original file line numberDiff line numberDiff line change
@@ -731,8 +731,6 @@ ExecShutdownNode(PlanState *node)
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check_stack_depth();
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734-
planstate_tree_walker(node,ExecShutdownNode,NULL);
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/*
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* Treat the node as running while we shut it down, but only if it's run
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* at least once already. We don't expect much CPU consumption during
@@ -746,6 +744,8 @@ ExecShutdownNode(PlanState *node)
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if (node->instrument&&node->instrument->running)
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InstrStartNode(node->instrument);
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747+
planstate_tree_walker(node,ExecShutdownNode,NULL);
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switch (nodeTag(node))
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{
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caseT_GatherState:

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