|From:||Etsuro Fujita <fujita(dot)etsuro(at)lab(dot)ntt(dot)co(dot)jp>|
|To:||Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>|
|Cc:||Robert Haas <robertmhaas(at)gmail(dot)com>, Andres Freund <andres(at)anarazel(dot)de>, Ashutosh Bapat <ashutosh(dot)bapat(at)enterprisedb(dot)com>, Rajkumar Raghuwanshi <rajkumar(dot)raghuwanshi(at)enterprisedb(dot)com>, pgsql-hackers <pgsql-hackers(at)postgresql(dot)org>|
|Subject:||Re: Expression errors with "FOR UPDATE" and postgres_fdw with partition wise join enabled.|
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(2018/08/03 22:18), Etsuro Fujita wrote:
> Here is a patch for refusing to generate PWJ paths when WRVs are involved:
> * We no longer need to handle WRVs, so I've simplified
> build_joinrel_tlist() and setrefs.c to what they were before
> partition-wise join went in, as in the previous patch.
> * attr_needed data for each child is used for building child-joins'
> tlists, but I think we can build those by applying
> adjust_appendrel_attrs to the parent's tlists, without attr_needed. So,
> I've also removed that as in the previous patch.
One thing to add: as for the latter, we don't need the changes to
placeholder.c either, so I've also simplified that to what they were
before partition-wise join went in.
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