From: | Enrico Weigelt <weigelt(at)metux(dot)de> |
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To: | pgsql-performance(at)postgresql(dot)org |
Subject: | Index + mismatching datatypes [WAS: index on custom function; explain] |
Date: | 2005-11-07 18:07:38 |
Message-ID: | 20051107180738.GC15990@nibiru.local |
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Lists: | pgsql-performance |
* Yann Michel <yann-postgresql(at)spline(dot)de> wrote:
> TIP 9: In versions below 8.0, the planner will ignore your desire to
> choose an index scan if your joining column's datatypes do not
> match
I've got a similar problem: I have to match different datatypes,
ie. bigint vs. integer vs. oid.
Of course I tried to use casted index (aka ON (foo::oid)), but
it didn't work.
What am I doing wrong ?
cu
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