Petr Jelinek wrote:

> > I'm not sure how well it will work to replace all the bits of LIKE and
> > regular expressions with ICU API calls.  One problem is that ICU likes
> > to do case folding as a whole string, not by character.  I need to do
> > more research about that.  
> Can't we use the regular expression api provided by ICU, or is that too
> incompatible?

That probably won't fly very well -- it would be rather absurd to have
different regex behavior when ICU is compiled compared to when it's
not.  Perhaps down the road we could have an extension that provides
ICU-based regex operators, but most likely not in core.

Álvaro Herrera      
PostgreSQL Development, 24x7 Support, Remote DBA, Training & Services

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