planner and join type mismatches

From: "Jim Wilson" <jimw(at)kelcomaine(dot)com>
To: <pgsql-general(at)postgresql(dot)org>
Subject: planner and join type mismatches
Date: 2004-01-14 14:09:14
Message-ID: twig.1074089354.18614@kelcomaine.com
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Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> said:

> ---------------------------(end of broadcast)---------------------------
> TIP 9: the planner will ignore your desire to choose an index scan if your
> joining column's datatypes do not match
>

Re: tip 9 :-). In 7.3.5 is it possible that the planner is finding a type
mismatch when there isn't one, resulting in a seq scan being selected? I've
had a problem with joining tables on an int8 column (primary key column in one
of the tables). Tested left outer and where clause syntax.

TIA,

Jim Wilson

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