On 2020-Oct-16, Alvaro Herrera wrote:

> On 2020-Oct-16, Alvaro Herrera wrote:
> 
> > I also just noticed that ALTER TABLE ONLY recurses to children, which it
> > should not.
> 
> Apparently I wrote (bogus) bespoke code to handle recursion in
> EnableDisableTrigger instead of using ATSimpleRecursion.  This patch
> seems to fix this problem.

... but it affects legacy inheritance, which would be undesirable
because it has never recursed for that case.  So it needs to have a
relkind check here and only recurse if it's a new-style partitioned
table:

> diff --git a/src/backend/commands/tablecmds.c 
> b/src/backend/commands/tablecmds.c
> index 511f015a86..c8d6f78da2 100644
> --- a/src/backend/commands/tablecmds.c
> +++ b/src/backend/commands/tablecmds.c
> @@ -4321,6 +4321,7 @@ ATPrepCmd(List **wqueue, Relation rel, AlterTableCmd 
> *cmd,
>               case AT_DisableTrigAll:
>               case AT_DisableTrigUser:
>                       ATSimplePermissions(rel, ATT_TABLE | ATT_FOREIGN_TABLE);
> +                     ATSimpleRecursion(wqueue, rel, cmd, recurse, lockmode, 
> context);
>                       pass = AT_PASS_MISC;
>                       break;
>               case AT_EnableRule:             /* ENABLE/DISABLE RULE variants 
> */

I'll add tests for both cases and push to all branches 11+.


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