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Message Posted: Thu, 27 Apr 2006 @ 12:35:07 GMT
| Subj: | | Re: Index Mechanism? |
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| From: | | Singh, Manish Kumar |
Sinle column PI wont always give equal distribution of data. Which means not all AMPs are doing equal amount of work.
Therefore multi-column PI is not something which is bad or should be avoided in my opinion. Sometimes single column Pican really hamper
performance and space requirement if we have lot of rows hash to the same AMP.
To boost performance, PPI can be used. Also SI can be created for improving performance.
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