Versions tested: 9.4.4, 9.5a2
Steps to reproduce:
1. psql to a database with sequences
2. type "grant usage on " and hit tab
3. "sequence" does not appear
4. type "grant usage on sequence " and hit tab
5. completes with word "to" which is incorrect.
--
Josh Berkus
PostgreSQL Experts Inc.
http://pgexperts.com