Jon Nelson <jnelson+pgsql@xxxxxxxxxxx> writes: > CREATE INDEX foo_idx ON t USING GIN (alternatecodes) WHERE > alternatecodes IS NOT NULL; > SELECT * FROM t WHERE alternatecodes IS NOT NULL; > ERROR: GIN indexes do not support whole-index scans Yep, this is a known issue. It's going to take major surgery on GIN to fix it, so don't hold your breath. In the particular case, what good do you think the WHERE clause is doing anyway? GIN won't index nulls at all ... which indeed is an aspect of the underlying issue --- see recent discussions, eg here: http://archives.postgresql.org/pgsql-hackers/2010-10/msg00521.php regards, tom lane -- Sent via pgsql-performance mailing list (pgsql-performance@xxxxxxxxxxxxxx) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-performance
