Re: Support NOT VALID / VALIDATE constraint options for named NOT NULL constraints
Rushabh Lathia <rushabh.lathia@gmail.com>
From: Rushabh Lathia <rushabh.lathia@gmail.com>
To: Alvaro Herrera <alvherre@alvh.no-ip.org>
Cc: PostgreSQL Hackers <pgsql-hackers@postgresql.org>
Date: 2025-02-10T17:18:57Z
Lists: pgsql-hackers
Attachments
- 0001-Convert-pg_attribut.attnotnull-to-char-type.patch (application/octet-stream) patch 0001
- 0002-Support-NOT-VALID-and-VALIDATE-CONSTRAINT-for-named-.patch (application/octet-stream) patch 0002
- 0003-Support-pg_dump-to-dump-NOT-VALID-named-NOT-NULL-con.patch (application/octet-stream) patch 0003
Hi Alvaro, I have incorporated the suggested changes, and here is the latest version of the patch: - Added more test cases to the regression suite. - Included tests in the pg_dump test. - Left objects with *INVALID NOT NULL* for pg_upgrade. - Fixed an issue where recursion to child tables was incorrectly attempting to locate the constraint by name. - Introduced a new function, QueueNNConstraintValidation(), for handling *NOT NULL* constraints. The only remaining task for this patch is updating the documentation. I will work on that and submit the final version soon. Please share your review comments. Thanks, On Mon, Feb 10, 2025 at 12:28 AM Rushabh Lathia <rushabh.lathia@gmail.com> wrote: > > > On Fri, Feb 7, 2025 at 4:44 PM Alvaro Herrera <alvherre@alvh.no-ip.org> > wrote: > >> >> Recursion to child tables is incorrectly trying to locate the constraint >> by name: >> >> create table notnull_tbl1 (a int); >> alter table notnull_tbl1 add constraint foo not null a not valid; >> create table notnull_chld (a int); >> alter table notnull_chld add constraint blah not null a not valid; >> alter table notnull_chld inherit notnull_tbl1 ; >> >> -- this fails but shouldn't: >> alter table notnull_tbl1 validate constraint foo; >> ERROR: constraint "foo" of relation "notnull_chld" does not exist >> >> The end result here should be that the constraint `blah` in table >> notnull_chld is marked as validated. >> > > Yes, I agree. Here we need a separate Queue for NotNull constraint > validation, > which fetches the respective Non-Validate-Not-Null constraint name from > the child table > > I am working on the patch and will post the update patch soon. > > >> >> -- >> Álvaro Herrera 48°01'N 7°57'E — >> https://www.EnterpriseDB.com/ >> Syntax error: function hell() needs an argument. >> Please choose what hell you want to involve. >> > > > -- > Rushabh Lathia > -- Rushabh Lathia www.EnterpriseDB.com
Commits
-
Allow NOT NULL constraints to be added as NOT VALID
- a379061a22a8 18.0 landed
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Add missing deparsing of [NO] IDENT to XMLSERIALIZE()
- 984410b92326 18.0 cited
-
backend launchers void * arguments for binary data
- 7202d72787d3 18.0 cited
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Add pg_constraint rows for not-null constraints
- 14e87ffa5c54 18.0 cited
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Create the infrastructure for planner support functions.
- 1fb57af92069 12.0 cited
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Add prokind column, replacing proisagg and proiswindow
- fd1a421fe661 11.0 cited