Subject Re: [Firebird-general] firebird 2.0 slower firebird 1.5
Author Pavel Cisar
Félix González wrote:
> It´s firebird 2.0 slower firebird 1.5?
> I´ve an application that uses firebird1.5 I´ve updated to firebird 2.0 the
> customer says me that it´s slower

Overall it should be (and is) faster than 1.5, except for some
operations that might be slower in 2.0. For example there was a bug in
NOT IN (select...) or value <> ALL(select...) processing when you can
get bad results when index is used. It's fixed in 2.0, but without index
use, it could be way slower than before.

best regards
Pavel Cisar