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Archives of the TeradataForum
Message Posted: Sat, 19 Dec 2015 @ 20:51:05 GMT
Subj: | | Defining NUSI on PI |
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From: | | Chennapragada, Somasankaram |
NUSI is generally an all amp operation. The NUSI subtables are built locally on all amps. So whenever a NUSI value is mentioned in where
condition, the request goes to all amps.
But, when we define NUSI on a PI, why is it a One-amp operation?
CREATE INDEX (claimid) ON Claim_PPI;
EXPLAIN SELECT * FROM Claim_PPI WHERE claimid = 260221;
The table is a PPI table.
BR,
Shankar
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