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Message Posted: Wed, 21 Nov 2007 @ 12:54:14 GMT


     
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Subj:   Indextypes Q, M, and K
 
From:   william.gregg

I seem to recall that Join Indices were defined with IndexTypes of 1 or 2 (back in the day).

Is my recall correct?

If yes what did/do ?1? and ?2? mean.

Are these IndexTypes still in use from aged data structures?

The summary list of Indextypes from prior notes is below.

From the TD Data Dictionary Manual:

Returns the type of an index as:

* P (Nonpartitioned Primary)

* Q (Partitioned Primary)

* S (Secondary)

* J (join index)

* N (hash index)

* K (primary key)

* U (unique constraint)

* V (value ordered secondary)

* H (hash ordered ALL covering secondary)

* O (valued ordered ALL covering secondary)

* I (ordering column of a composite secondary index)

* M (Multi-Column Statistics)


Thanks,

Bill Gregg
Teradata Team
Thomson Healthcare



     
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