Re: pg_stat_*_columns?

From: Robert Haas <robertmhaas(at)gmail(dot)com>
To: Joel Jacobson <joel(at)trustly(dot)com>
Cc: Jim Nasby <Jim(dot)Nasby(at)bluetreble(dot)com>, Magnus Hagander <magnus(at)hagander(dot)net>, Pg Hackers <pgsql-hackers(at)postgresql(dot)org>
Subject: Re: pg_stat_*_columns?
Date: 2015-06-20 14:20:26
Message-ID: CA+TgmoYTmtDk8xyhRR5ntz5=577-kSiLpbe_dTXLg3-VVW837Q@mail.gmail.com
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On Sat, Jun 20, 2015 at 10:12 AM, Joel Jacobson <joel(at)trustly(dot)com> wrote:
> Is there any chance the project would accept a patch which adds the
> pg_stat_*_columns-feature without first optimizing the collector?

I doubt it. It's such a pain point already that massively increasing
the amount of data we need to store does not seem like a good plan.

> I guess it
> primarily depends on how much of the new code that would need to be
> rewritten, if the collector is optimized/rewritten in the future?

I don't think that's really the issue. It's more that I think it
would be the extra data would be likely to cause real pain for users.

FWIW, I tend to think that the solution here has less to do with
splitting the data up into more files and more to do with rethinking
the format.

--
Robert Haas
EnterpriseDB: http://www.enterprisedb.com
The Enterprise PostgreSQL Company

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