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From: David G. Johnston <david.g.johnston@gmail.com>
To: Venkatesan, Sekhar <sekhar.venkatesan@emc.com>
Cc: Tom Lane <tgl@sss.pgh.pa.us>
Cc: pgsql-sql@postgresql.org <pgsql-sql@postgresql.org>
Subject: Re: Question on PostgreSQL DB behavior w.r.t JOIN and sort order.
Date: Mon, 8 Feb 2016 23:00:55 -0700
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On Monday, February 8, 2016, Venkatesan, Sekhar <sekhar.venkatesan@emc.com>
wrote:

> Yes. is there an option/configuration to tell the postgres
> optimizer/planner to generate plans to include the sort order instead of
> speed?
>
No.  The planner chooses based upon least cost of the exact query given to
it.  If that query does not have order by the system will not guarantee any
specific output order.

David J.

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  Subject: Re: Question on PostgreSQL DB behavior w.r.t JOIN and sort order.
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