On Mon, 2023-10-16 at 20:26 +0000, PG Bug reporting form wrote:
> Is there a possibility that during the vacuum process, FK constraints might
> be dropped and recreated for restructuring?
No, that cannot happen.
You must have lost your foreign key constraints some other way (somebody ran
ALTER TABLE). There is no indication that this is a PostgreSQL bug.
Yours,
Laurenz Albe
