On 07/05/11 17:06, Tom Lane wrote:
> "Jeff Frost" <j...@pgexperts.com> writes:
>> Ran into a situation with a customer who is using the btree_gist contrib
>> module to allow combined index of some tsearch data and two other columns.
>> One of these other columns is a bigint field.  I noticed that the combined
>> index won't be used by the planner unless you specifically cast the bare
>> number to a bigint.
> If memory serves, the btree_gist opclasses don't include any cross-type
> operators, so "int8 = int4" doesn't work here.
>
Ah! And if you look at the contrib/btree_gist/sql/int8.sql test file, you'll
see this:

SELECT count(*) FROM int8tmp WHERE a <  464571291354841::int8;

So, I'd say it's expected behavior even though it's slightly counter intuitive
if you're used to the auto typing behavior.


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