On 2015-06-10 PM 05:53, Atri Sharma wrote:
> On Wed, Jun 10, 2015 at 2:16 PM, Amit Langote <Langote_Amit_f8@lab.ntt.co.jp
>> wrote:
>
>>
>> Perhaps the qual needs to be pushed all the way down
>> to the Hash's underlying scan if that makes sense.
>>
>
> And that is a Pandora's box of troubles IMHO unless done in a very careful
> manner.
>
More appropriately, that's a predicate (should not have called it a qual)
derived from partitioning-optimization specific knowledge.
Thanks,
Amit