Re: BUG #17800: ON CONFLICT DO UPDATE fails to detect incompatible fields that leads to a server crash

Michael Paquier <michael@paquier.xyz> writes:
> On Sat, Feb 18, 2023 at 08:00:00AM +0000, PG Bug reporting form wrote:
>> But when executing:
>> UPDATE t SET (a, b) = (SELECT t.a, t.b || '+');
>> I get:
>> ERROR:  attribute 1 of type tp1 has wrong type
>> DETAIL:  Table has type text, but query expects integer.

> Reproduced here.

I think there may be two different bugs here.  The coredump in the
ON CONFLICT case goes back to v11 for me (and v10 doesn't support
the primary-key-on-partition case at all, so this error may be
aboriginal to the feature).  But I only see this "wrong type" failure
in v14 and later.  I didn't try bisecting yet.

            regards, tom lane