From: Dmitry A. <fd...@ua...> - 2004-03-25 14:33:04
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Hello Carlos, Thursday, March 25, 2004, 2:41:01 PM, you wrote: CGÁ> I think i can do a change do the generation of the where clausule using CGÁ> coalesce ( have you reviewed how the use of coalesce affects the query CGÁ> plan ?? maybe it have no effect ... i will try to check it ) for 1.5+ CGÁ> and using Pk fields only on all other versions ( 1.0.x and Interbase 6 ) Hummmmmm... I think that this will render the negative influence upon building plan, but as it were there was not -- must work pravilino. better NATURAL plan, than incorrect result. And i'm don't know true... COALESCE its unsupported 1.0.x and Interbase 6? Or supported?!?! If not supported -- it's may be realised as feature for Firebird 1.5! CGÁ> Opinions ????? Is it my opinion! ;) -- Best regards, Dmitry mailto:fd...@ua... |