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>
> > > I working with a table of about 70'000 records and I made 2 tests about
> > > the optimisation of ~* :
> > >
> > > With ~* :
>
> > > real 11.52 *
> > > user 0.02
> > > sys 0.01
> > >
> > > With upper(...) and like upper(%...%)
> > > --------------------------------------
>
> > > real 4.44 *
> > > user 0.03
> > > sys 0.00
> > >
> > > Relsult: it seem to be 2.6 time more optimised to use upper(...) like
> > > upper('%...%') ???
>
> > This is interesting. Does anyone have an idea why this is happening?
>
> In my opinion the reason why regular expresion matching is sloer is
> obvious. Regulars expresion are very powerfull, but the code that
> does the matching is a bit more complicated. With like expresions
> you may write simple and faster code.
Makes sense.
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