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Fix rule-detection code for MERGE. 

Use the relation's rd_rules structure to test whether it has rules,
rather than the relhasrules flag, which might be out of date.

Reviewed by Tom Lane.

Backpatch to 15, where MERGE was added.

Discussion: https://postgr.es/m/CAEZATCVkBVZABfw71sYvkcPf6tarcOFST5Bc6AOi-LFT9YdccQ%40mail.gmail.com
This commit is contained in:
Dean Rasheed 2022-11-25 13:31:48 +00:00
parent b1d0158060
commit 7b2ccc5e03
1 changed files with 2 additions and 1 deletions
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3
src/backend/parser/parse_merge.c
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@ -182,7 +182,8 @@ transformMergeStmt(ParseState *pstate, MergeStmt *stmt)
errmsg("cannot execute MERGE on relation \"%s\"",
RelationGetRelationName(pstate->p_target_relation)),
errdetail_relkind_not_supported(pstate->p_target_relation->rd_rel->relkind)));
if (pstate->p_target_relation->rd_rel->relhasrules)
if (pstate->p_target_relation->rd_rules != NULL &&
pstate->p_target_relation->rd_rules->numLocks > 0)
ereport(ERROR,
(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
errmsg("cannot execute MERGE on relation \"%s\"",