Fix FK triggers losing DEFERRABLE/INITIALLY DEFERRED when marked ENFORCED again
Previously, a foreign key defined as DEFERRABLE INITIALLY DEFERRED could behave as NOT DEFERRABLE after being set to NOT ENFORCED and then back to ENFORCED. This happened because recreating the FK triggers on re-enabling the constraint forgot to restore the tgdeferrable and tginitdeferred fields in pg_trigger. Fix this bug by properly setting those fields when the foreign key constraint is marked ENFORCED again and its triggers are recreated, so the original DEFERRABLE and INITIALLY DEFERRED properties are preserved. Backpatch to v18, where NOT ENFORCED foreign keys were introduced. Author: Yasuo Honda <[email protected]> Reviewed-by: Fujii Masao <[email protected]> Discussion: https://postgr.es/m/cakmoutms2nkxezddcrsjq5p3b2l_pr266hv8kw5panwmvar...@mail.gmail.com Backpatch-through: 18 Branch ------ REL_18_STABLE Details ------- https://git.postgresql.org/pg/commitdiff/5db5e339692ed98adb5ae6ff625a92b49f770a6f Modified Files -------------- src/backend/commands/tablecmds.c | 2 ++ src/test/regress/expected/foreign_key.out | 53 +++++++++++++++++++++++++++++++ src/test/regress/sql/foreign_key.sql | 37 +++++++++++++++++++++ 3 files changed, 92 insertions(+)
