> On Jan 28, 2026, at 10:15, Chao Li <[email protected]> wrote:
> 
> 
> 
>> On Jan 27, 2026, at 16:55, Zsolt Parragi <[email protected]> wrote:
>> 
>>> I added two new test cases in 0002 that trigger the check.
>> 
>> I also tested these scenarios previously. It's good that they are part
>> of the test suite, but they don't hit that error path. Verified with
>> this:
>> 
>> diff --git a/src/backend/commands/tablecmds.c 
>> b/src/backend/commands/tablecmds.c
>> index 379f4d4ebaf..50f80724cb3 100644
>> --- a/src/backend/commands/tablecmds.c
>> +++ b/src/backend/commands/tablecmds.c
>> @@ -17857,9 +17857,7 @@ ATExecDropInherit(Relation rel, RangeVar
>> *parent, LOCKMODE lockmode)
>> Relation parent_rel;
>> 
>> if (rel->rd_rel->relispartition)
>> - ereport(ERROR,
>> - (errcode(ERRCODE_WRONG_OBJECT_TYPE),
>> - errmsg("cannot change inheritance of a partition")));
>> + Assert(0);
>> 
>> /*
>> * AccessShareLock on the parent is probably enough, seeing that DROP
> 
> Thank you so much for pointing out this, and sorry for misunderstanding you. 
> You are right, as the check has been added to ATPrepChangeInherit(), the same 
> check in ATExecDropInherit becomes redundant. I thought you were talking 
> about the check in ATPrepChangeInherit().
> 
> PFA v7:
> 
> * In 0001, replaced ereport with assert in mark_index_clustered(). See my 
> previous email for the analysis.
> * In 0002, removed the redundant check of relispartition from 
> ATExecDropInherit().
> 
> Best regards,
> --
> Chao Li (Evan)
> HighGo Software Co., Ltd.
> https://www.highgo.com/
> 
> 
> 
> 
> <v7-0001-tablecmds-reject-CLUSTER-ON-for-partitioned-table.patch><v7-0002-tablecmds-reject-INHERIT-NO-INHERIT-for-partition.patch>

PFA v8: rebase requested by CF https://commitfest.postgresql.org/patch/6415/

Best regards,
--
Chao Li (Evan)
HighGo Software Co., Ltd.
https://www.highgo.com/




Attachment: v8-0001-tablecmds-reject-CLUSTER-ON-for-partitioned-table.patch
Description: Binary data

Attachment: v8-0002-tablecmds-reject-INHERIT-NO-INHERIT-for-partition.patch
Description: Binary data

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