Re: Optimizer not using index on raw datatype column

On Feb 14, 8:16 pm, harvinde..._at_gmail.com wrote:
> Hi,
>
> We have an unique index on raw(16) column but whenever we issue a
> query on this table optimizer is doing fullscan and not using the
> index but when I force index it works fine:
>
> Select * from tab1 where raw_column = 'value';
>
> Is this expected behavior that when we refer RAW columns in query that
> Optimizer not use the index?
>
> Thanks
> --Harvinder

Please note that EXPLAIN PLAN will treat all bind variables as VARCHAR2.
The execution path may be wrong.
The only execution path that counts is the execution plan in v $sql_plan.

--
Sybrand Bakker
Senior Oracle DBA