Tried to change the table_definition in SQL99.g and TablePrimary, such
that both the givenName from the user, and the "cleaned" schema and
table names become available. Not working properly yet
Generated files from SQL99, but the throws clause is missing.
Finally generated correctly sql99 with antlr-3.5
Fixes on the table_identifier parser. Still there is an issue with the
column references, which must also take the schema prefix
Added schema to the parsing of column_reference, such that the correct
given table name can be given to the constructor
Fixed column_reference to return a value also when no table is given