> The closest you can do is something like Artur's option (or the pg_trgm 
> module - handy since you are looking at 3-chars and up) to select likely 
> matches combined with a separate search on '%domain.com%' to confirm 
> that fact.

Thanks for your suggestion.  Our production server is currently running
PostgreSQL v8.2.3.  I think pg_trgm contrib module is not available for 8.2
series. 

Also, I read about WildSpeed - fast wildcard search for LIKE operator.  What
is your opinion on that?
http://www.sai.msu.su/~megera/wiki/wildspeed


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