Hi Manik
I faced similar issue in ETL, but solved using stored procedures.
In my case Partition elimination->join and full table scan>join had time difference of huge 30 Min.
Filter,
PARTND_RANGE_COLMN BETWEEN '2012-01-01' AND '2012-01-31'
this goes for partition elimination > join(19 to 30 Sec)
Filter,
PARTND_RANGE_COLMN BETWEEN TABLE_ONE.START_DATE AND TABLE_ONE.END_DATE
this goes for full table scan > join(25 to 30 Min)
TABLE_ONE has only one row with same start and end date.(all stats collected)
Pls share if you find any solution..
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