Re: [PG19] Hash join writes null-keyed outer rows to temp files

From: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
To: shihao zhong <zhong950419(at)gmail(dot)com>
Cc: pgsql-hackers <pgsql-hackers(at)lists(dot)postgresql(dot)org>
Subject: Re: [PG19] Hash join writes null-keyed outer rows to temp files
Date: 2026-10-23 01:25:25
Message-ID: 2848724.1792718725@sss.pgh.pa.us
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shihao zhong <zhong950419(at)gmail(dot)com> writes:
> One small thing. Looks like HJ_FILL_OUTER_NULL_TUPLES can
> now only be reached in a parallel join, so maybe add
> Assert(parallel) there.

Why would that be an improvement? It has nothing to do with
the correctness of the code.

regards, tom lane

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