Subject | Re: [firebird-support] Re: Query plan insists on NOT USING an index |
---|---|
Author | Alexandre Benson Smith |
Post date | 2007-07-04T17:56:45Z |
Dmitry Yemanov wrote:
fixed IN select and a IN with sub-select, he thinks the two should
produce the same kind of plan. The query Set showed him (and from what I
understood the query you are interested on the plan) should give very
good performance, but I think he did not tried it.
see you !
--
Alexandre Benson Smith
Development
THOR Software e Comercial Ltda
Santo Andre - Sao Paulo - Brazil
www.thorsoftware.com.br
> Franz J Fortuny wrote:I think he doesn't understand that FB treats as different queries a
>
>>
>> Here is the plan, as reported by the statement as it is executed:
>>
>
> Sorry, but I was interested in the plan for the join case (with
> tor_equiv being the first joined stream).
>
>
> Dmitry
>
fixed IN select and a IN with sub-select, he thinks the two should
produce the same kind of plan. The query Set showed him (and from what I
understood the query you are interested on the plan) should give very
good performance, but I think he did not tried it.
see you !
--
Alexandre Benson Smith
Development
THOR Software e Comercial Ltda
Santo Andre - Sao Paulo - Brazil
www.thorsoftware.com.br