Re: BIGINT datatype and Indexes Failure

Denis Gasparin <denis@edinet.it> writes:
> On table a (INTEGER datatype) the search is done using the index.
> Instead on table b (BIGINT datatype) the search is always done using the
> seq scan.

Try
    select * from b where col1 = 123::int8;

The query planner is not presently very smart about cross-datatype
comparisons (int8 vs int4).  We have a TODO item to fix this...

            regards, tom lane