A. Kretschmer wrote:
> In response to Charles Holleran :
>
>> Why is it slow when the same un-functionized query was fast? The tbl_a has
>> est. 30,000,000 records. It has an index for (x,y) pairs. It has an index for
>> date_observed. So good results on the straight query. Where did I go wrong
>> with the function?
>>
>
> The planner isn't able to choose the right plan because he don't know
> the actual parameters.
>
That is precisely why I asked about the values for the bind variables.
Unfortunately, there is no facility that could influence the plan in
this case. Constant re-parsing will, of course, be grossly suboptimal.
--
Mladen Gogala
Sr. Oracle DBA
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