Allow foreign keys to reference a superset of unique columns

When Who What
2022-10-12 06:07:01 Michael Paquier (michael-kun) Closed in commitfest 2022-09 with status: Returned with feedback
2022-08-01 22:14:31 Jacob Champion (jchampion) New status: Waiting on Author
2022-08-01 22:14:26 Jacob Champion (jchampion) Closed in commitfest 2022-07 with status: Moved to next CF
2022-06-08 18:12:51 Kaiting Chen (ktchen14) Changed authors to Kaiting Chen (ktchen14)
2022-06-08 18:12:51 Kaiting Chen (ktchen14) Changed targetversion to 16
2022-06-08 18:12:16 Kaiting Chen (ktchen14) Attached mail thread CA+CLzG8HZUk8Gb9BKN88fgdSEqHx=2iq5aDdvbz7JqSFjA2WxA@mail.gmail.com
2022-06-08 18:12:16 Kaiting Chen (ktchen14) Created patch record