The following bug has been logged online: Bug reference: 6053 Logged by: Regina Email address: l...@pcorp.us PostgreSQL version: 9.1beta1 Operating system: Windows Description: Can't do DISTINCT on citext column Details:
I have a table I created like this: -- With and without the COLLATE in there I get the same error. CREATE TABLE test ( fullname citext COLLATE pg_catalog."POSIX", ); INSERT INTO test(fullname) VALUES('test1'),('test2'); When I do a: SELECT DISTINCT fullname FROM test; or a SELECT DISTINCT fullname COLLATE pg_catalog."POSIX" FROM test; It gives error: ERROR: could not determine which collation to use for lower() function HINT: Use the COLLATE clause to set the collation explicitly. -- Sent via pgsql-bugs mailing list (pgsql-bugs@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-bugs