Re: Optimizer question with equivalent joins

From: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
To: Dirk Lutzebaeck <lutzeb(at)aeccom(dot)com>
Cc: pgsql-sql(at)postgresql(dot)org
Subject: Re: Optimizer question with equivalent joins
Date: 2002-06-21 15:18:36
Message-ID: 19933.1024672716@sss.pgh.pa.us
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Dirk Lutzebaeck <lutzeb(at)aeccom(dot)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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