Fix order of arguments to SubTransSetParent().
ProcessTwoPhaseBuffer (formerly StandbyRecoverPreparedTransactions)
mixed up the parent and child XIDs when calling SubTransSetParent to
record the transactions' relationship in pg_subtrans.
Remarkably, analysis by Simon Riggs suggests that this doesn't lead to
visible problems (at least, not in non-Assert builds). That might
explain why we'd not noticed it before. Nonetheless, it's surely wrong.
This code was born broken, so back-patch to all supported branches.
Discussion: https://postgr.es/m/20110.1492905318@sss.pgh.pa.us
Branch
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REL9_5_STABLE
Details
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https://git.postgresql.org/pg/commitdiff/a66e01bbcc8808674ade41d38cfba711a36b8b15
Modified Files
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src/backend/access/transam/twophase.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)