>I have this problem, I run a pretty big query under choose and rule
>and both shows costs in explain plan. I thought in RULE we dont see
>Also under RULE the explain plan shows hash join but then again I
>thought hash join can only be used in CBO?
>Am I missing something?
You are using some feature that forces CBO such as:
o table with non-default degree of paralellism
o partitioned table
o index organized table
or you might have a query with a hint in it.
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