Re: A question on the query planner

From: Greg Stark <gsstark(at)mit(dot)edu>
To: Jared Carr <jared(at)89glass(dot)com>
Cc: Greg Stark <gsstark(at)mit(dot)edu>, pgsql-performance(at)postgresql(dot)org
Subject: Re: A question on the query planner
Date: 2003-12-02 20:11:02
Message-ID: 871xrn9e09.fsf@stark.dyndns.tv
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Jared Carr <jared(at)89glass(dot)com> writes:

> Greg Stark wrote:
>
> >
> >> Merge Cond: ("outer"."?column7?" = "inner"."?column5?")
> >>
> >
> >Well it looks like you have something strange going on. What data type is
> > car_id in each table?
> car_id is a varchar(10) in both tables.

Well for some reason it's being cast to a text to do the merge.

What version of postgres is this btw? The analyzes look like 7.4?

--
greg

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