def visit_lambda(self, exp: Lambda) -> Expression:
if exp in self.__cache:
return self.__cache[exp]
ret = apply_mappers(exp, self.__translation_rules.lambdas, self)
self.__cache[exp] = ret
return ret
def visit_function_call(self, exp: FunctionCall) -> Expression:
if exp in self.__cache:
return self.__cache[exp]
ret = apply_mappers(exp, self.__translation_rules.functions, self)
self.__cache[exp] = ret
return ret
def visit_argument(self, exp: Argument) -> Expression:
if exp in self.__cache:
return self.__cache[exp]
ret = apply_mappers(exp, self.__translation_rules.arguments, self)
self.__cache[exp] = ret
return ret
def visit_column(self, exp: Column) -> Expression:
if exp in self.__cache:
return self.__cache[exp]
ret = apply_mappers(exp, self.__translation_rules.columns, self)
self.__cache[exp] = ret
return ret
def visit_literal(self, exp: Literal) -> Expression:
# We can't use the cache for literals because Python hashes
# Literal(None, 0) and Literal(None, 0.0) equivalently, which can then
# break Clickhouse since it expects the correct type. This isn't a major
# performance hit though since Literals can't contain other expressions.
ret = apply_mappers(exp, self.__translation_rules.literals, self)
return ret
def visit_subscriptable_reference(
self, exp: SubscriptableReference) -> Expression:
if exp in self.__cache:
return self.__cache[exp]
ret = apply_mappers(exp, self.__translation_rules.subscriptables, self)
self.__cache[exp] = ret
return ret
def visit_lambda(self, exp: Lambda) -> Expression:
return apply_mappers(exp, self.__translation_rules.lambdas, self)
def visit_argument(self, exp: Argument) -> Expression:
return apply_mappers(exp, self.__translation_rules.arguments, self)
def visit_curried_function_call(self, exp: CurriedFunctionCall) -> Expression:
return apply_mappers(exp, self.__translation_rules.curried_functions, self)
def visit_subscriptable_reference(self, exp: SubscriptableReference) -> Expression:
return apply_mappers(exp, self.__translation_rules.subscriptables, self)
def visit_column(self, exp: Column) -> Expression:
return apply_mappers(exp, self.__translation_rules.columns, self)
def visit_literal(self, exp: Literal) -> Expression:
return apply_mappers(exp, self.__translation_rules.literals, self)