Re: row filtering for logical replication

PSA new set of v40* patches.

This addresses multiple review comments as follows:

v40-0001 = the "main" patch
- not changed

v40-0002 = tab auto-complete.
- not changed

v40-0003 = cache updates.
- fix memory bug reported by Tang, using Greg's fix [Tang 15/11]
- fix unnecessary publish_as_relid code [Amit 15/11] #3
- add more comments about delayed caching [Amit 15/11] #4
- update comment for rowfilter_valid [Amit 15/11] #5
- fix regex bug reported by Tang, using Greg's fix [Tang 16/11]

v40-0004 = combine using OR instead of AND
- this is a new patch
- new behavior. multiple filters now combine by OR instead of AND
[Tomas 23/9] #3

v40-0005 = filter validation replica identity.
- previously this was v39-0004
- rearrange args for rowfilter_expr_checker [Amit 15/11] #7

v40-0006 = filter validation walker.
- previously this was v39-0005
- now allows NULLIF [Houz 8/11] #3

v40-0007 = support old/new tuple logic for row-filters.
- previously this was v39-0006
- fix typos [Peter 15/11] #1
- function logicalrep_write_tuple_cached use more common code [Peter
15/11] #2, [Dilip 15/11] #1
- make order of old/new consistent [Peter 15/11] #3
- guard elog to be more efficient [Peter 15/11] #4
- update typedefs.list [Peter 15/11] #5
- update comment for pgoutput_row_filter_virtual function [Dilip 15/11] #2
- add more comments in pgoutput_row_filter_update_check [Dilip 15/11] #3
- add assertion [Dilip 15/11] #4

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[Tomas 23/9] https://www.postgresql.org/message-id/574b4e78-2f35-acf3-4bdc-4b872582e739%40enterprisedb.com
[Houz 8/11]
https://www.postgresql.org/message-id/OS0PR01MB571625D4A5CC1DAB4045B2BB94919%40OS0PR01MB5716.jpnprd01.prod.outlook.com
[Tang 15/11]
https://www.postgresql.org/message-id/OS0PR01MB61138751816E2BF9A0BD6EC9FB989%40OS0PR01MB6113.jpnprd01.prod.outlook.com
[Amit 15/11]
https://www.postgresql.org/message-id/CAA4eK1L4ddTpc%3D-3bq%3D%3DU8O-BJ%3DsvkAFefRDpATKCG4hKYKAig%40mail.gmail.com
[Tang 16/11]
https://www.postgresql.org/message-id/OS0PR01MB61132C0E4FFEE73D34AE9823FB999%40OS0PR01MB6113.jpnprd01.prod.outlook.com
[Peter 15/11]
https://www.postgresql.org/message-id/CAHut%2BPsZ2xsRZw4AyRQuLfO4gYiqCpNVNDRbv_RN1XUUo3KWsw%40mail.gmail.com

Kind Regards,
Peter Smith.
Fujitsu Australia