pg.ddx.io  pgsql-performance@postgresql.org mailing list archive  

help / color / mirror / Atom feed

From: legrand legrand <legrand_legrand@hotmail.com>
To: pgsql-performance@postgresql.org
Subject: Re: Explain is slow with tables having many columns
Date: Mon, 24 Sep 2018 12:43:44 -0700 (MST)
Message-ID: <1537818224423-0.post@n3.nabble.com> (raw)
In-Reply-To: <20180924193044.GU2471@telsasoft.com>
References: <1537816948278-0.post@n3.nabble.com>
	<20180924193044.GU2471@telsasoft.com>

Justin Pryzby wrote
> On Mon, Sep 24, 2018 at 12:22:28PM -0700, legrand legrand wrote:
>> Hello,
>> I have found that explain on tables with many (hundreds) columns
>> are slow compare to nominal executions.
> 
> See also this thread from last month:
> 
> https://www.postgresql.org/message-id/flat/CAEe%3DmRnNNL3RDKJDmY%3D_mpcpAb5ugYL9NcchELa6Qgtoz2NjCw%4...
> 
> Justin

maybe, I will check that patch ...

I thought it would also have been related to
https://www.postgresql.org/message-id/CAMkU%3D1xPqHP%3D7YPeChq6n1v_qd4WGf%2BZvtnR-b%2BgyzFqtJqMMQ%40...

Regards
PAscal



--
Sent from: http://www.postgresql-archive.org/PostgreSQL-performance-f2050081.html

view thread (5+ messages)  latest in thread

Message-ID: <1537818224423-0.post@n3.nabble.com>
Permalink:  ../1537818224423-0.post@n3.nabble.com/
Also on:    postgresql.org/message-id/1537818224423-0.post@n3.nabble.com

copy link · copy postgr.es

reply

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Reply to all the recipients using the --to and --cc options:
  reply via email

  To: pgsql-performance@postgresql.org
  Cc: legrand_legrand@hotmail.com
  Subject: Re: Explain is slow with tables having many columns
  In-Reply-To: <1537818224423-0.post@n3.nabble.com>

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

This inbox is served by DDX for PostgreSQL; see mirroring instructions
for how to clone and mirror all data and code used for this inbox