Re: row filtering for logical replication

PSA new set of v38* patches.

This addresses some review comments as follows:

v34-0001 = the "main" patch.
- rebased to HEAD
- fixed Amit review comment about ALTER DROP [1]
- fixed Houz review comment about psql \d+ [2]

v34-0002 = tab auto-complete.
- not changed

v34-0003 = cache updates.
- fixed Houz review comment about combining multiple filters [3]

v34-0004 = filter validation replica identity.
- fixed Tang review comment about REPLICA IDENTITY docs [4]

v34-0005 = filter validation walker.
- not changed

v34-0006 = support old/new tuple logic for row-filters.
- not changed

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[1] Amit 5/11 #2 -
https://www.postgresql.org/message-id/CAA4eK1KN5gsTo6Qaomt-9vpC61cgw5ikgzLhOunf3o22G3uc_Q%40mail.gmail.com
[2] Houz 8/11 #1 -
https://www.postgresql.org/message-id/OS0PR01MB571625D4A5CC1DAB4045B2BB94919%40OS0PR01MB5716.jpnprd01.prod.outlook.com
[3] Houz 4/11 #3 -
https://www.postgresql.org/message-id/OS0PR01MB5716090A70A73ADF58C58950948D9%40OS0PR01MB5716.jpnprd01.prod.outlook.com
[4] Tang 9/11 -
https://www.postgresql.org/message-id/OS0PR01MB6113895D7964F03E9F57F9C7FB929%40OS0PR01MB6113.jpnprd01.prod.outlook.com

Kind Regards,
Peter Smith.
Fujitsu Australia