Horton

Re: foreign join error "variable not found in subplan target list"

Alexander Pyhalov <a.pyhalov@postgrespro.ru>

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From: Alexander Pyhalov <a.pyhalov@postgrespro.ru>
To: Richard Guo <guofenglinux@gmail.com>
Cc: Etsuro Fujita <etsuro.fujita@gmail.com>, PostgreSQL mailing lists <pgsql-bugs@lists.postgresql.org>
Date: 2022-08-10T07:06:35Z
Lists: pgsql-bugs 
Richard Guo писал 2022-08-10 08:28:
> On Wed, Aug 10, 2022 at 10:15 AM Richard Guo <guofenglinux@gmail.com>
> wrote:
> 
>> Currently the outer_plan used in postgresGetForeignPlan() can only
>> be
>> 'Join' or 'Sort + Join'. I'm wondering whether we can take this
>> knowledge into consideration when we fix the outer_plan's tlist, to
>> also
>> fix the Join's tlist if it is below the Sort node.
> 
> Alternatively, how about we include in the EPQ path's pathtarget
> thecolumns required for evaluating the local conditions when we
> consider
> EPQ paths with pathkeys? Something like attached.
> 
> Thanks
> Richard

Hi.
Why are we sure that epq_path can provide all vars from restrictinfo?
-- 
Best regards,
Alexander Pyhalov,
Postgres Professional

Commits

  1. postgres_fdw: Avoid 'variable not found in subplan target list' error.