Re: Documentation improvements for partitioning

From: Robert Haas <robertmhaas(at)gmail(dot)com>
To: Amit Langote <Langote_Amit_f8(at)lab(dot)ntt(dot)co(dot)jp>
Cc: Simon Riggs <simon(at)2ndquadrant(dot)com>, Corey Huinker <corey(dot)huinker(at)gmail(dot)com>, Pg Hackers <pgsql-hackers(at)postgresql(dot)org>
Subject: Re: Documentation improvements for partitioning
Date: 2017-04-04 03:12:17
Message-ID: CA+TgmoYPE5zpJ7FjSLg+k49S=PuM4bVH_JzLXPrWOqC4a=1Ssg@mail.gmail.com
Views: Raw Message | Whole Thread | Download mbox | Resend email
Thread:
Lists: pgsql-hackers

On Mon, Apr 3, 2017 at 12:52 AM, Amit Langote
<Langote_Amit_f8(at)lab(dot)ntt(dot)co(dot)jp> wrote:
> I noticed what looks like a redundant line (or an incomplete sentence) in
> the paragraph about multi-column partition keys. In the following text:
>
> + partitioning, if desired. Of course, this will often result in a
> larger
> + number of partitions, each of which is individually smaller.
> + criteria. Using fewer columns may lead to coarser-grained
> + A query accessing the partitioned table will have
> + to scan fewer partitions if the conditions involve some or all of
> these
>
> This:
>
> + criteria. Using fewer columns may lead to coarser-grained
>
> looks redundant. But maybe we can keep that sentence by completing it,
> which the attached patch does as follows:
>
> + number of partitions, each of which is individually smaller. On the
> + other hand, using fewer columns may lead to a coarser-grained
> + partitioning criteria with smaller number of partitions.
>
> The patch also fixes some typos I noticed.

Thanks for the corrections. Committed.

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

In response to

Browse pgsql-hackers by date

  From Date Subject
Next Message Tatsuo Ishii 2017-04-04 03:26:58 Re: Statement timeout behavior in extended queries
Previous Message Robert Haas 2017-04-04 03:08:19 Re: Fix obsolete comment in GetSnapshotData