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Re: Constraint propagating for equal fields - Mailing list pgsql-performance

From Greg Stark
Subject Re: Constraint propagating for equal fields
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Msg-id 407d949e1001291830v5245c2bbhebd14dc0e183eb1@mail.gmail.com
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In response to Constraint propagating for equal fields  (Віталій Тимчишин <tivv00@gmail.com>)
Responses Re: Constraint propagating for equal fields  (Віталій Тимчишин <tivv00@gmail.com>)
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2010/1/28 Віталій Тимчишин <tivv00@gmail.com>
>
> I've always thought that PostgreSQL would propagate constraint from field1 to field2 if condition says field1=field2,
butthis does not seem the case: 

version?

--
greg

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