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Re: PostgreSQL Limits: maximum number of columns in SELECT result

amul sul <sulamul@gmail.com>

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From: Amul Sul <sulamul@gmail.com>
To: Vladimir Sitnikov <sitnikov.vladimir@gmail.com>
Cc: PostgreSQL Hackers <pgsql-hackers@lists.postgresql.org>
Date: 2022-05-31T13:55:53Z
Lists: pgsql-hackers 
On Tue, May 31, 2022 at 12:46 PM Vladimir Sitnikov
<sitnikov.vladimir@gmail.com> wrote:
>
> Hi,
>
> Today I hit "ERROR: target lists can have at most 1664 entries", and I was surprised the limit was not documented.
>
> I suggest that the limit of "1664 columns per tuple" (or whatever is the right term) should be added
> to the list at https://www.postgresql.org/docs/current/limits.html e.g. after "columns per table".
>

Rather, I think the "columns per table" limit needs to be updated to 1664.

Regards,
Amul

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  1. Doc: mention limitation of the number of resultset columns