presto-main/src/main/java/io/prestosql/sql/analyzer/ExpressionAnalyzer.java/Visitor/visitArithmeticBinary
class Visitor:        @Override
        protected Type visitArithmeticBinary(ArithmeticBinaryExpression node, StackableAstVisitorContext<Context> context)
        {
            return getOperator(context, node, OperatorType.valueOf(node.getOperator().name()), node.getLeft(), node.getRight());
        }