From: Tom Lane <tgl@sss.pgh.pa.us>
To: Dirk Lutzebaeck <lutzeb@aeccom.com>
Cc: pgsql-sql@postgresql.org
Subject: Re: Optimizer question with equivalent joins
Date: Fri, 21 Jun 2002 11:18:36 -0400
Message-ID: <19933.1024672716@sss.pgh.pa.us> (raw)
In-Reply-To: <15635.14203.405079.671597@cayambe.core.aeccom.com>
References: <15635.14203.405079.671597@cayambe.core.aeccom.com>
Dirk Lutzebaeck <lutzeb@aeccom.com> writes:
> say I have a join which says
> t.a = t.b and t.b = t.c
> do I need to give the optimizer a hint by saying it more redundantly
> t.a = t.b and t.b = t.c and t.c = t.a
Not since about 7.0.3 ...
regards, tom lane
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To: pgsql-sql@postgresql.org
Cc: tgl@sss.pgh.pa.us, lutzeb@aeccom.com
Subject: Re: Optimizer question with equivalent joins
In-Reply-To: <19933.1024672716@sss.pgh.pa.us>
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