Обсуждение: pgsql: Fix rule-detection code for MERGE.

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rather than the relhasrules flag, which might be out of date.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

Branch
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REL_15_STABLE

Details
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https://git.postgresql.org/pg/commitdiff/04d61bfe64c9098aa737d0bea428b46a46b358bb

Modified Files
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src/backend/parser/parse_merge.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)