Function GetTypeReferenceFromName

pkg/sql/parser/parse.go:407–419

GetTypeReferenceFromName turns a type name into a type reference. This supports only “simple” (single-identifier) references to built-in types, when the identifer has already been parsed away from the input SQL syntax.

(typeName tree.Name)

// references to built-in types, when the identifer has already been
// parsed away from the input SQL syntax.
func GetTypeReferenceFromName(typeName tree.Name) (tree.ResolvableTypeReference, error) {
	expr, err := ParseExpr(fmt.Sprintf("1::%s", typeName.String()))
	if err != nil {
		return nil, err
	}

	cast, ok := expr.(*tree.CastExpr)
	if !ok {
		return nil, errors.AssertionFailedf("expected a tree.CastExpr, but found %T", expr)
	}

	return cast.Type, nil
}

// GetTypeFromValidSQLSyntax retrieves a type from its SQL syntax. The caller is
// responsible for guaranteeing that the type expression is valid