Nick Haw <nick.haw@operagrp.com> writes:
> createlang plpgsql database1
> I get this error message
> ERROR: Load of file /usr/lib/pgsql/lib/plpgsql.so failed:
> /usr/lib/pgsql/lib/plpgsql.so: undefined symbol: CurrentTriggerData
> createlang: language installation failed
I'll bet /usr/lib/pgsql/lib/plpgsql.so is from PG 7.0 (or older),
and you're trying to load it into 7.1.
regards, tom lane