Re: Explain docs and the regression database

From: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
To: Greg Smith <greg(at)2ndquadrant(dot)com>
Cc: pgsql-docs(at)postgresql(dot)org
Subject: Re: Explain docs and the regression database
Date: 2010-05-30 03:37:40
Message-ID: 28482.1275190660@sss.pgh.pa.us
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Greg Smith <greg(at)2ndquadrant(dot)com> writes:
> The introduction to using EXPLAIN:
> http://developer.postgresql.org/pgdocs/postgres/using-explain.html
> includes a footnote at the bottom suggesting you might follow along with
> these examples because they come from the regression test database.
> This would really be a lot more useful if it gave some sort of clue just
> how exactly a user might get that database populated with that
> regression data.

You run the regression tests.

> I'm not even quite sure myself exactly what point in
> the regression testing cycle these examples came from.

The ending state.

> Another open
> question in my head is whether enough pieces of the regression set are
> shipped in the most common packaging sets that it's ever practical to
> expect users to run the tests at all. Thoughts?

In Fedora/RHEL, and I believe also the PGDG RPMs, you'd install the
postgresql-test RPM and run it per directions.

regards, tom lane

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