Found another error. [Typo: `CONSTRATIN_CATALOG`](https://github.com/ronsavage/SQL/blob/master/sql-92.bnf#L1800) Should obviously(?) be `CONSTRAINT_CATALOG`. Will submit a pull request.
Found another error. Typo:
CONSTRATIN_CATALOGShould obviously(?) be
CONSTRAINT_CATALOG. Will submit a pull request.