INDEX_FFS trick works not - why 11.2.0.1 on AIX

Hello

I try to run

Select / * + INDEX_FFS (t index_name) * / *.
from table_name t

Index in question is local bitmap index on a partitioned table.

Abnother query have done us a full scan against the table in question.

Considering that a full scan can be quciker - wanted to at least try but when watching explian plan does not show with her.

Can use
Select / * + INDEX (index_name t) * / *.
from table_name t

and full bitmap index analysis.

I would like to make fasft complete analysis to see if it is faster.


Thank you very much

Full Fast scan to avoid going to the table with a full table scan if the index contains all the columns needed.
It's probably not the case with a bitmap index.

Refer to the documentation [url http://docs.oracle.com/cd/E11882_01/server.112/e25789/indexiot.htm#sthref320]

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