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Fix pg_stat_statements for MERGE

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We weren't jumbling the merge action list, so wildly different commands
would be considered to use the same query ID.  Add that, mention it in
the docs, and some test lines.

Backpatch to 15.

Author: Tatsu <bt22nakamorit@oss.nttdata.com>
Reviewed-by: Julien Rouhaud <rjuju123@gmail.com>
Discussion: https://postgr.es/m/d87e391694db75a038abc3b2597828e8@oss.nttdata.com
This commit is contained in:
Alvaro Herrera
2022-09-27 10:44:42 +02:00
parent d1f95fa247
commit 72abf03b64
5 changed files with 77 additions and 5 deletions
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4
src/backend/nodes/nodeFuncs.c
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@ -2266,10 +2266,10 @@ expression_tree_walker(Node *node,
{
MergeAction *action = (MergeAction *) node;
if (walker(action->targetList, context))
return true;
if (walker(action->qual, context))
return true;
if (walker(action->targetList, context))
return true;
}
break;
case T_PartitionPruneStepOp: