Re: Bogus EXPLAIN results with column aliases for mismatched partitions

Etsuro Fujita <etsuro(dot)fujita(at)gmail(dot)com> writes:
> On Tue, Dec 3, 2019 at 6:45 AM Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> wrote:
>> Concretely, I'm thinking of the attached (on top of the other patch,
>> which I just pushed). This agrees exactly with what ExplainTargetRel
>> does for regular scans.

> Thanks for the patch! (The patch didn't apply to HEAD cleanly,
> though.) I like consistency, so +1 for the change.

Yeah, 55a1954da probably changed the expected output from what that
has. I'll clean it up and push.

>> One could make an argument that we should schema-qualify, regardless
>> of the "verbose" flag, if the output format isn't EXPLAIN_FORMAT_TEXT.
>> That would reduce the amount of variability that plan analysis tools
>> have to cope with. However, ExplainTargetRel itself doesn't provide
>> the schema in non-verbose mode. Maybe it should, ie we should change
>> it like ...

> Seems like another issue to me.

Agreed. When/if we change that, we could make this code follow along.

regards, tom lane