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Actually, even without the date field, queries will still benefit from the partition-wise join on the charge_id column. You would see something like this (partition hash all) in the plan:
SELECT STATEMENT CHOOSE (Cost=178026)
PARTITION HASH ALL 1:4:1
HASH JOIN
PARTITION RANGE ALL 1:13:3 TABLE ACCESS FULL TAB_5 * 1:52:3 PARTITION RANGE ALL 1:13:5 TABLE ACCESS FULL TAB_6 * 1:52:5
>>> sfaroult_at_oriole.com 11/23/02 03:19a.m. >>>
> 3) If we range-partition by date, subpartition by hash (charge_id),
No for the same reason as above. It would be also interesting to check whether you should rather have a LOCAL or GLOBAL index on charge_id in this case.
-- Please see the official ORACLE-L FAQ: http://www.orafaq.com -- Author: Binley Lim INET: Binley.Lim_at_ird.govt.nz Fat City Network Services -- 858-538-5051 http://www.fatcity.com San Diego, California -- Mailing list and web hosting services --------------------------------------------------------------------- To REMOVE yourself from this mailing list, send an E-Mail message to: ListGuru_at_fatcity.com (note EXACT spelling of 'ListGuru') and in the message BODY, include a line containing: UNSUB ORACLE-L (or the name of mailing list you want to be removed from). You may also send the HELP command for other information (like subscribing).Received on Sun Nov 24 2002 - 23:53:37 CST