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Re: A question on the query planner - Mailing list pgsql-performance

From Tom Lane
Subject Re: A question on the query planner
Date
Msg-id 25476.1070409047@sss.pgh.pa.us
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In response to Re: A question on the query planner  (Greg Stark <gsstark@mit.edu>)
Responses Re: A question on the query planner
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Greg Stark <gsstark@mit.edu> writes:
> Huh. The following shows something strange. It seems joining on two varchars
> no longer works well. Instead the optimizer has to convert both columns to
> text.

Define "no longer works well".  varchar doesn't have its own comparison
operators anymore, but AFAIK that makes no difference.

            regards, tom lane

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