Method sql_op_precedence

datafusion/sql/src/unparser/expr.rs:1061–1066

(&self, op: &BinaryOperator)

    }

    fn sql_op_precedence(&self, op: &BinaryOperator) -> u8 {
        match self.sql_to_op(op) {
            Ok(op) => op.precedence(),
            Err(_) => 0,
        }
    }

    fn sql_to_op(&self, op: &BinaryOperator) -> Result<Operator> {
        match op {