Subject Re: [firebird-support] Theory about join vs where
Author Tetram Corp
Ok,

so for optimizer, a condition is the same wherever it comes from ?
Thank's

Thierry

Dimitry Sibiryakov a écrit :
>> In this case, putting test about year or quantity in join will not
>> produce a different result
>> But what about efficiency ?
>>
>
> In this case - no differences. Optimizer will gather all conditions
> into one pile.
>
> SY, SD.
>
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