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Beginning in v15, if you apply ALTER TABLE ENABLE/DISABLE TRIGGER to a partitioned table, it also affects the partitions' cloned versions of the affected trigger(s). The initial implementation of this located the clones by name, but that fails on foreign-key triggers which have names incorporating their own OIDs. We can fix that, and also make the behavior more bulletproof in the face of user-initiated trigger renames, by identifying the cloned triggers by tgparentid. Following the lead of earlier commits in this area, I took care not to break ABI in the v15 branch, even though I rather doubt there are any external callers of EnableDisableTrigger. While here, update the documentation, which was not touched when the semantics were changed. Per bug #17817 from Alan Hodgson. Back-patch to v15; older versions do not have this behavior. Discussion: https://postgr.es/m/17817-31dfb7c2100d9f3d@postgresql.org