herve(at)duchesne(dot)me writes:
> I tried to reproduce the example :
> CREATE EXTENSION btree_gist;
> CREATE TABLE room_reservation (
> room text,
> during tsrange,
> EXCLUDE USING GIST (room WITH =, during WITH &&)
> );
> but I got this error :
> ERROR: data type text has no default operator class for access method
> "gist"
It works for me. You sure you installed the extension successfully?
regards, tom lane