From: Tom Lane <tgl@sss.pgh.pa.us>
To: Aidar Uldanov <aidar@donorbox.org>
Cc: David Rowley <dgrowleyml@gmail.com>
Cc: pgsql-bugs@lists.postgresql.org
Subject: Re: BUG #18690: A count function returns wrong value when using FDW
Date: Wed, 06 Nov 2024 10:29:31 -0500
Message-ID: <3243407.1730906971@sss.pgh.pa.us> (raw)
In-Reply-To: <CAOCMfz=GKA+90BC0LXyuGYPeTT5u1mF_aVxXHHBpG+zBfL_Y=g@mail.gmail.com>
References: <18690-cbb98b56ecb0b130@postgresql.org>
<CAApHDvoMwifCTZ6SgokRH49R-3MK5WYzBb+cwjvwb=RKpJOATw@mail.gmail.com>
<CAOCMfz=ssk6L42p2KAH+wHyNAxV0B75uDrCaBveoX5zwrWc95w@mail.gmail.com>
<CAOCMfz=GKA+90BC0LXyuGYPeTT5u1mF_aVxXHHBpG+zBfL_Y=g@mail.gmail.com>
Aidar Uldanov <aidar@donorbox.org> writes:
> David, after some troubleshooting I found out that the issue with FWD and
> bigint values, so when column type int then it works well but after
> changing to a bigint type a count() function returns the wrong value.
> create table transactions(
> id serial primary key,
> amount int,
> org_id int,
> recurring_payment_id int REFERENCES recurring_payments(id)
> );
> ...
> CREATE FOREIGN TABLE transactions_f (
> id serial,
> amount bigint,
> org_id int,
> recurring_payment_id int
> )
> SERVER foreign_server
> OPTIONS (schema_name 'public', table_name 'transactions');
While it's sort of interesting that that misbehaves, I do not believe
that postgres_fdw promises to work correctly with foreign-table
definitions that don't match the remote table's actual column
datatypes.
regards, tom lane
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To: pgsql-bugs@postgresql.org
Cc: tgl@sss.pgh.pa.us, aidar@donorbox.org, dgrowleyml@gmail.com, pgsql-bugs@lists.postgresql.org
Subject: Re: BUG #18690: A count function returns wrong value when using FDW
In-Reply-To: <3243407.1730906971@sss.pgh.pa.us>
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