Ivan,

> > > if you periodly SET STATISTCS an your Indices in the DB,
> > > some queries can be much performanter ...

<SNIP>

> Or you can simply directly update rdb$indices table and commit ;-)

Wouldn't you need to know which value to put in RDB$STATISTICS?
Or are you saying that a dummy update is enough?
Ciao
--
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_/\/ando