In the following `selectExpr` rule in `sql-gen.r`:
The `SQL_NODE` token type cannot be found; seems it is a typo originally intending to be `SQL_TOKEN` instead.
Not sure what you mean. SQL_NODE is there in org.hibernate.hql.internal.antlr.SqlTokenTypes#SQL_NODE
Guess it was generated by sql-gen.r per se. It cannot be found in original ANTLR files anywhere.