Re: SQL:2011 application time

Vik Fearing <vik@postgresfriends.org>

From: Vik Fearing <vik@postgresfriends.org>
To: Paul Jungwirth <pj@illuminatedcomputing.com>, Peter Eisentraut <peter@eisentraut.org>, jian he <jian.universality@gmail.com>
Cc: PostgreSQL Hackers <pgsql-hackers@lists.postgresql.org>
Date: 2023-10-13T00:48:28Z
Lists: pgsql-hackers

Commits

Same data as JSON: GET /api/v1/messages/:b64id/commits the thread's linked commits as JSON, with link sources. API reference →
  1. Rename gist stratnum support function

  2. Remove support for temporal RESTRICT foreign keys

  3. Cache NO ACTION foreign keys separately from RESTRICT foreign keys

  4. Fix NO ACTION temporal foreign keys when the referenced endpoints change

  5. Improve whitespace in without_overlaps test

  6. Tests for logical replication with temporal keys

  7. Support for GiST in get_equal_strategy_number()

  8. Make the conditions in IsIndexUsableForReplicaIdentityFull() more explicit

  9. Replace get_equal_strategy_number_for_am() by get_equal_strategy_number()

  10. Improve internal logical replication error for missing equality strategy

  11. Simplify IsIndexUsableForReplicaIdentityFull()

  12. Fix ALTER TABLE / REPLICA IDENTITY for temporal tables

  13. doc: Update pg_constraint.conexclop docs for WITHOUT OVERLAPS

  14. doc: Add PERIOD to ALTER TABLE reference docs

  15. doc: Add WITHOUT OVERLAPS to ALTER TABLE reference docs

  16. Add temporal FOREIGN KEY contraints

  17. Add temporal PRIMARY KEY and UNIQUE constraints

  18. Add stratnum GiST support function

  19. Avoid crashing when a JIT-inlined backend function throws an error.

  20. Revert temporal primary keys and foreign keys

  21. Fix ON CONFLICT DO NOTHING/UPDATE for temporal indexes

  22. Add test for REPLICA IDENTITY with a temporal key

  23. Use half-open interval notation in without_overlaps tests

  24. Use daterange and YMD in without_overlaps tests instead of tsrange.

  25. Rename pg_constraint.conwithoutoverlaps to conperiod

  26. Fix comment on gist_stratnum_btree

  27. Add missing TAP test name

  28. Improve error handling of HMAC computations

  29. Rename functions to avoid future conflicts

On 10/11/23 05:47, Paul Jungwirth wrote:
>> +SELECT pg_get_indexdef(conindid, 0, true) FROM pg_constraint WHERE 
>> conname = 'temporal_rng_pk';
>> +                                pg_get_indexdef
>> +-------------------------------------------------------------------------------
>> + CREATE UNIQUE INDEX temporal_rng_pk ON temporal_rng USING gist (id, 
>> valid_at)
>>
>> Shouldn't this somehow show the operator classes for the columns?  We 
>> are using different operator classes for the id and valid_at columns, 
>> aren't we?
> 
> We only print the operator classes if they are not the default, so they 
> don't appear here.
> 
> I do suspect something more is desirable though. For exclusion 
> constraints we replace everything before the columns with just "EXCLUDE 
> USING gist". I could embed WITHOUT OVERLAPS but it's not valid syntax in 
> CREATE INDEX. Let me know if you have any ideas.

Why not?  The standard does not mention indexes (although some 
discussions last week might change that) so we can change the syntax for 
it as we wish.  Doing so would also allow us to use ALTER TABLE ... 
USING INDEX for such things.
-- 
Vik Fearing