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Archives of the TeradataForum
Message Posted: Tue, 01 Jul 2003 @ 11:11:16 GMT
Subj: | | Re: BMSMS |
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From: | | Claybourne Barrineau |
Just a side note, it would also be nice if the Optimizer considered using BMSMS when a logical 'Or' is specified in the filter. For
example (based on the previous DDL):
SELECT
A
FROM TEST_TABLE
WHERE C = DATE '2003-06-30'
AND D in ('GB','FR');
Today, the Optimizer will never (not even if the statistics prove it to be optimal) consider using a BMSMS to resolve this query. It can
only work when mulitple equalities are specified on columns (with NUSIs) from a single table.
My 2 Cents,
Clay
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