Horton

Re: SQL:2011 application time

jian he <jian.universality@gmail.com>

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From: jian he <jian.universality@gmail.com>
To: Paul Jungwirth <pj@illuminatedcomputing.com>
Cc: PostgreSQL Hackers <pgsql-hackers@lists.postgresql.org>
Date: 2023-10-23T00:00:00Z
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

Attachments

hi. also based on v16.
-----------------tests.
drop table if exists for_portion_of_test1;
CREATE unlogged TABLE for_portion_of_test1 (id int4range, valid_at
tsrange,name text );
INSERT INTO for_portion_of_test1 VALUES  ('[1,1]', NULL,
'[1,1]_NULL'),('[1,1]', '(,)', '()_[1,]')
,('[1,1]', 'empty', '[1,1]_empty'),(NULL,NULL, NULL), (nuLL,
'(2018-01-01,2019-01-01)','misc');
--1
UPDATE for_portion_of_test1 FOR PORTION OF valid_at FROM NULL TO NULL
SET name = 'for_portition_NULLtoNULL';
select * from for_portion_of_test1;
--2
UPDATE for_portion_of_test1 FOR PORTION OF valid_at FROM null TO
UNBOUNDED SET name = 'NULL_TO_UNBOUNDED';
select * from for_portion_of_test1;
--3
UPDATE for_portion_of_test1 FOR PORTION OF valid_at FROM UNBOUNDED TO
null SET name = 'UNBOUNDED__TO_NULL';
select * from for_portion_of_test1;
--4
UPDATE for_portion_of_test1 FOR PORTION OF valid_at FROM UNBOUNDED TO
UNBOUNDED SET name = 'UNBOUNDED__TO_UNBOUNDED';
select * from for_portion_of_test1;
------------------------
File: /src/backend/executor/nodeModifyTable.c
1277: oldRange = slot_getattr(oldtupleSlot,
forPortionOf->rangeVar->varattno, &isNull);
1278:
1279: if (isNull)
1280: elog(ERROR, "found a NULL range in a temporal table");
1281: oldRangeType = DatumGetRangeTypeP(oldRange);

I wonder when this isNull will be invoked. the above tests won't
invoke the error.
also the above test, NULL seems equivalent to unbounded. FOR PORTION
OF "from" and "to" both bound should not be null?

which means the following code does not work as intended? I also
cannot find a way to invoke the following elog error branch.
File:src/backend/executor/nodeModifyTable.c
4458: exprState = ExecPrepareExpr((Expr *) forPortionOf->targetRange, estate);
4459: targetRange = ExecEvalExpr(exprState, econtext, &isNull);
4460: if (isNull)
4461: elog(ERROR, "Got a NULL FOR PORTION OF target range");

---------------------------
i also made some changes in the function range_leftover_internal,
ExecForPortionOfLeftovers.
please see the attached patch.