Robert Osowiecki <robson(at)cavern(dot)pl> writes:
> Yes, I am. Where can I read about that other problem, especially: does
> plperl spoil locale with each pgperl function call or only when creating
> language?
It was discussed a week or two ago. We're still testing a patch, but
in the meantime you can work around it by making sure that the
postmaster is started with environment variables LC_COLLATE and LC_CTYPE
matching the settings used in the database.
regards, tom lane