| From: | Herwig Goemans <herwig(dot)goemans(at)gmail(dot)com> |
|---|---|
| To: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> |
| Cc: | pgsql-sql(at)postgresql(dot)org |
| Subject: | Re: ANSI JOINS versus , like JOINS |
| Date: | 2016-06-20 15:35:36 |
| Message-ID: | CAKaDz_H8JrE6ojYkrvRARfJ1nt+dy4aNpixNZagTMenxshw0-w@mail.gmail.com |
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| Lists: | pgsql-sql |
Your help is very much appreciated, I did that already short after I sent
the mail and it resolved the issue. However I do not understand why there
is a difference in behaviour between ansi join and comma like join.
Thanks
Herwig
Op 20 jun. 2016 3:42 p.m. schreef "Tom Lane" <tgl(at)sss(dot)pgh(dot)pa(dot)us>:
> Herwig Goemans <herwig(dot)goemans(at)gmail(dot)com> writes:
> > Is there anyone who can help so that the mixed query has the same or
> > equivalent execution plan (performance) as the ansi query ?
>
> I think you need to raise join_collapse_limit and/or from_collapse_limit.
>
> regards, tom lane
>
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