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ClickHouse/dbms/include/DB/Functions/FunctionsDictionaries.h

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#pragma once
#include <DB/DataTypes/DataTypesNumberFixed.h>
#include <DB/DataTypes/DataTypeArray.h>
#include <DB/DataTypes/DataTypeString.h>
#include <DB/Columns/ColumnVector.h>
#include <DB/Columns/ColumnArray.h>
#include <DB/Columns/ColumnString.h>
#include <DB/Interpreters/Context.h>
#include <DB/Functions/IFunction.h>
#include <statdaemons/CategoriesHierarchy.h>
namespace DB
{
/** Функции, использующие словари Яндекс.Метрики
* - словари регионов, операционных систем, поисковых систем.
*
* Подняться по дереву до определенного уровня.
* regionToCity, regionToArea, regionToCountry,
* OSToRoot,
* SEToRoot,
* categoryToRoot,
* categoryToSecondLevel
*
* Преобразовать значения в столбце
* regionToName
*
* Является ли первый идентификатор потомком второго.
* regionIn, SEIn, OSIn, categoryIn.
*
* Получить массив идентификаторов регионов, состоящий из исходного и цепочки родителей. Порядок implementation defined.
* regionHierarchy, OSHierarchy, SEHierarchy, categoryHierarchy.
*/
struct RegionToCityImpl
{
static UInt32 apply(UInt32 x, const RegionsHierarchy & hierarchy) { return hierarchy.toCity(x); }
};
struct RegionToAreaImpl
{
static UInt32 apply(UInt32 x, const RegionsHierarchy & hierarchy) { return hierarchy.toArea(x); }
};
struct RegionToCountryImpl
{
static UInt32 apply(UInt32 x, const RegionsHierarchy & hierarchy) { return hierarchy.toCountry(x); }
};
struct RegionToContinentImpl
{
static UInt32 apply(UInt32 x, const RegionsHierarchy & hierarchy) { return hierarchy.toContinent(x); }
};
struct OSToRootImpl
{
static UInt8 apply(UInt8 x, const TechDataHierarchy & hierarchy) { return hierarchy.OSToMostAncestor(x); }
};
struct SEToRootImpl
{
static UInt8 apply(UInt8 x, const TechDataHierarchy & hierarchy) { return hierarchy.SEToMostAncestor(x); }
};
struct CategoryToRootImpl
{
static UInt16 apply(UInt16 x, const CategoriesHierarchy & hierarchy) { return hierarchy.toMostAncestor(x); }
};
struct CategoryToSecondLevelImpl
{
static UInt16 apply(UInt16 x, const CategoriesHierarchy & hierarchy) { return hierarchy.toSecondLevel(x); }
};
struct RegionInImpl
{
static bool apply(UInt32 x, UInt32 y, const RegionsHierarchy & hierarchy) { return hierarchy.in(x, y); }
};
struct OSInImpl
{
static bool apply(UInt32 x, UInt32 y, const TechDataHierarchy & hierarchy) { return hierarchy.isOSIn(x, y); }
};
struct SEInImpl
{
static bool apply(UInt32 x, UInt32 y, const TechDataHierarchy & hierarchy) { return hierarchy.isSEIn(x, y); }
};
struct CategoryInImpl
{
static bool apply(UInt16 x, UInt16 y, const CategoriesHierarchy & hierarchy) { return hierarchy.in(x, y); }
};
struct RegionHierarchyImpl
{
static UInt32 toParent(UInt32 x, const RegionsHierarchy & hierarchy) { return hierarchy.toParent(x); }
};
struct OSHierarchyImpl
{
static UInt8 toParent(UInt8 x, const TechDataHierarchy & hierarchy) { return hierarchy.OSToParent(x); }
};
struct SEHierarchyImpl
{
static UInt8 toParent(UInt8 x, const TechDataHierarchy & hierarchy) { return hierarchy.SEToParent(x); }
};
struct CategoryHierarchyImpl
{
static UInt16 toParent(UInt16 x, const CategoriesHierarchy & hierarchy) { return hierarchy.toParent(x); }
};
/// Преобразует идентификатор, используя словарь.
template <typename T, typename Transform, typename Dict, typename Name>
class FunctionTransformWithDictionary : public IFunction
{
private:
const SharedPtr<Dict> owned_dict;
public:
FunctionTransformWithDictionary(const SharedPtr<Dict> & owned_dict_)
: owned_dict(owned_dict_)
{
if (!owned_dict)
throw Exception("Dictionaries was not loaded. You need to check configuration file.", ErrorCodes::DICTIONARIES_WAS_NOT_LOADED);
}
/// Получить имя функции.
String getName() const
{
return Name::get();
}
/// Получить тип результата по типам аргументов. Если функция неприменима для данных аргументов - кинуть исключение.
DataTypePtr getReturnType(const DataTypes & arguments) const
{
if (arguments.size() != 1)
throw Exception("Number of arguments for function " + getName() + " doesn't match: passed "
+ toString(arguments.size()) + ", should be 1.",
ErrorCodes::NUMBER_OF_ARGUMENTS_DOESNT_MATCH);
if (arguments[0]->getName() != TypeName<T>::get())
throw Exception("Illegal type " + arguments[0]->getName() + " of argument of function " + getName()
+ " (must be " + TypeName<T>::get() + ")",
ErrorCodes::ILLEGAL_TYPE_OF_ARGUMENT);
return arguments[0];
}
/// Выполнить функцию над блоком.
void execute(Block & block, const ColumnNumbers & arguments, size_t result)
{
if (const ColumnVector<T> * col_from = dynamic_cast<const ColumnVector<T> *>(&*block.getByPosition(arguments[0]).column))
{
ColumnVector<T> * col_to = new ColumnVector<T>;
block.getByPosition(result).column = col_to;
const typename ColumnVector<T>::Container_t & vec_from = col_from->getData();
typename ColumnVector<T>::Container_t & vec_to = col_to->getData();
size_t size = vec_from.size();
vec_to.resize(size);
const Dict & dict = *owned_dict;
for (size_t i = 0; i < size; ++i)
vec_to[i] = Transform::apply(vec_from[i], dict);
}
else if (const ColumnConst<T> * col_from = dynamic_cast<const ColumnConst<T> *>(&*block.getByPosition(arguments[0]).column))
{
block.getByPosition(result).column = new ColumnConst<T>(col_from->size(), Transform::apply(col_from->getData(), *owned_dict));
}
else
throw Exception("Illegal column " + block.getByPosition(arguments[0]).column->getName()
+ " of first argument of function " + Name::get(),
ErrorCodes::ILLEGAL_COLUMN);
}
};
/// Проверяет принадлежность, используя словарь.
template <typename T, typename Transform, typename Dict, typename Name>
class FunctionIsInWithDictionary : public IFunction
{
private:
const SharedPtr<Dict> owned_dict;
public:
FunctionIsInWithDictionary(const SharedPtr<Dict> & owned_dict_)
: owned_dict(owned_dict_)
{
if (!owned_dict)
throw Exception("Dictionaries was not loaded. You need to check configuration file.", ErrorCodes::DICTIONARIES_WAS_NOT_LOADED);
}
/// Получить имя функции.
String getName() const
{
return Name::get();
}
/// Получить тип результата по типам аргументов. Если функция неприменима для данных аргументов - кинуть исключение.
DataTypePtr getReturnType(const DataTypes & arguments) const
{
if (arguments.size() != 2)
throw Exception("Number of arguments for function " + getName() + " doesn't match: passed "
+ toString(arguments.size()) + ", should be 1.",
ErrorCodes::NUMBER_OF_ARGUMENTS_DOESNT_MATCH);
if (arguments[0]->getName() != TypeName<T>::get())
throw Exception("Illegal type " + arguments[0]->getName() + " of first argument of function " + getName()
+ " (must be " + TypeName<T>::get() + ")",
ErrorCodes::ILLEGAL_TYPE_OF_ARGUMENT);
if (arguments[1]->getName() != TypeName<T>::get())
throw Exception("Illegal type " + arguments[1]->getName() + " of second argument of function " + getName()
+ " (must be " + TypeName<T>::get() + ")",
ErrorCodes::ILLEGAL_TYPE_OF_ARGUMENT);
return new DataTypeUInt8;
}
/// Выполнить функцию над блоком.
void execute(Block & block, const ColumnNumbers & arguments, size_t result)
{
const ColumnVector<T> * col_vec1 = dynamic_cast<const ColumnVector<T> *>(&*block.getByPosition(arguments[0]).column);
const ColumnVector<T> * col_vec2 = dynamic_cast<const ColumnVector<T> *>(&*block.getByPosition(arguments[1]).column);
const ColumnConst<T> * col_const1 = dynamic_cast<const ColumnConst<T> *>(&*block.getByPosition(arguments[0]).column);
const ColumnConst<T> * col_const2 = dynamic_cast<const ColumnConst<T> *>(&*block.getByPosition(arguments[1]).column);
if (col_vec1 && col_vec2)
{
ColumnVector<UInt8> * col_to = new ColumnVector<UInt8>;
block.getByPosition(result).column = col_to;
const typename ColumnVector<T>::Container_t & vec_from1 = col_vec1->getData();
const typename ColumnVector<T>::Container_t & vec_from2 = col_vec2->getData();
typename ColumnVector<UInt8>::Container_t & vec_to = col_to->getData();
size_t size = vec_from1.size();
vec_to.resize(size);
const Dict & dict = *owned_dict;
for (size_t i = 0; i < size; ++i)
vec_to[i] = Transform::apply(vec_from1[i], vec_from2[i], dict);
}
else if (col_vec1 && col_const2)
{
ColumnVector<UInt8> * col_to = new ColumnVector<UInt8>;
block.getByPosition(result).column = col_to;
const typename ColumnVector<T>::Container_t & vec_from1 = col_vec1->getData();
const T const_from2 = col_const2->getData();
typename ColumnVector<UInt8>::Container_t & vec_to = col_to->getData();
size_t size = vec_from1.size();
vec_to.resize(size);
const Dict & dict = *owned_dict;
for (size_t i = 0; i < size; ++i)
vec_to[i] = Transform::apply(vec_from1[i], const_from2, dict);
}
else if (col_const1 && col_vec2)
{
ColumnVector<UInt8> * col_to = new ColumnVector<UInt8>;
block.getByPosition(result).column = col_to;
const T const_from1 = col_const1->getData();
const typename ColumnVector<T>::Container_t & vec_from2 = col_vec2->getData();
typename ColumnVector<UInt8>::Container_t & vec_to = col_to->getData();
size_t size = vec_from2.size();
vec_to.resize(size);
const Dict & dict = *owned_dict;
for (size_t i = 0; i < size; ++i)
vec_to[i] = Transform::apply(const_from1, vec_from2[i], dict);
}
else if (col_const1 && col_const2)
{
block.getByPosition(result).column = new ColumnConst<UInt8>(col_const1->size(),
Transform::apply(col_const1->getData(), col_const2->getData(), *owned_dict));
}
else
throw Exception("Illegal columns " + block.getByPosition(arguments[0]).column->getName()
+ " and " + block.getByPosition(arguments[1]).column->getName()
+ " of arguments of function " + Name::get(),
ErrorCodes::ILLEGAL_COLUMN);
}
};
/// Получает массив идентификаторов, состоящий из исходного и цепочки родителей.
template <typename T, typename Transform, typename Dict, typename Name>
class FunctionHierarchyWithDictionary : public IFunction
{
private:
const SharedPtr<Dict> owned_dict;
public:
FunctionHierarchyWithDictionary(const SharedPtr<Dict> & owned_dict_)
: owned_dict(owned_dict_)
{
if (!owned_dict)
throw Exception("Dictionaries was not loaded. You need to check configuration file.", ErrorCodes::DICTIONARIES_WAS_NOT_LOADED);
}
/// Получить имя функции.
String getName() const
{
return Name::get();
}
/// Получить тип результата по типам аргументов. Если функция неприменима для данных аргументов - кинуть исключение.
DataTypePtr getReturnType(const DataTypes & arguments) const
{
if (arguments.size() != 1)
throw Exception("Number of arguments for function " + getName() + " doesn't match: passed "
+ toString(arguments.size()) + ", should be 1.",
ErrorCodes::NUMBER_OF_ARGUMENTS_DOESNT_MATCH);
if (arguments[0]->getName() != TypeName<T>::get())
throw Exception("Illegal type " + arguments[0]->getName() + " of argument of function " + getName()
+ " (must be " + TypeName<T>::get() + ")",
ErrorCodes::ILLEGAL_TYPE_OF_ARGUMENT);
return new DataTypeArray(arguments[0]);
}
/// Выполнить функцию над блоком.
void execute(Block & block, const ColumnNumbers & arguments, size_t result)
{
if (const ColumnVector<T> * col_from = dynamic_cast<const ColumnVector<T> *>(&*block.getByPosition(arguments[0]).column))
{
ColumnVector<T> * col_values = new ColumnVector<T>;
ColumnArray * col_array = new ColumnArray(col_values);
block.getByPosition(result).column = col_array;
ColumnArray::Offsets_t & res_offsets = col_array->getOffsets();
typename ColumnVector<T>::Container_t & res_values = col_values->getData();
const typename ColumnVector<T>::Container_t & vec_from = col_from->getData();
size_t size = vec_from.size();
res_offsets.resize(size);
res_values.reserve(size * 4);
const Dict & dict = *owned_dict;
for (size_t i = 0; i < size; ++i)
{
T cur = vec_from[i];
while (cur)
{
res_values.push_back(cur);
cur = Transform::toParent(cur, dict);
}
res_offsets[i] = res_values.size();
}
}
else if (const ColumnConst<T> * col_from = dynamic_cast<const ColumnConst<T> *>(&*block.getByPosition(arguments[0]).column))
{
Array res;
const Dict & dict = *owned_dict;
T cur = col_from->getData();
while (cur)
{
res.push_back(static_cast<typename NearestFieldType<T>::Type>(cur));
cur = Transform::toParent(cur, dict);
}
block.getByPosition(result).column = new ColumnConstArray(col_from->size(), res, new DataTypeArray(new typename DataTypeFromFieldType<T>::Type));
}
else
throw Exception("Illegal column " + block.getByPosition(arguments[0]).column->getName()
+ " of first argument of function " + Name::get(),
ErrorCodes::ILLEGAL_COLUMN);
}
};
struct NameRegionToCity { static const char * get() { return "regionToCity"; } };
struct NameRegionToArea { static const char * get() { return "regionToArea"; } };
struct NameRegionToCountry { static const char * get() { return "regionToCountry"; } };
struct NameRegionToContinent{ static const char * get() { return "regionToContient"; } };
struct NameOSToRoot { static const char * get() { return "OSToRoot"; } };
struct NameSEToRoot { static const char * get() { return "SEToRoot"; } };
struct NameCategoryToRoot { static const char * get() { return "categoryToRoot"; } };
struct NameCategoryToSecondLevel { static const char * get() { return "categoryToSecondLevel"; } };
struct NameRegionIn { static const char * get() { return "regionIn"; } };
struct NameOSIn { static const char * get() { return "OSIn"; } };
struct NameSEIn { static const char * get() { return "SEIn"; } };
struct NameCategoryIn { static const char * get() { return "categoryIn"; } };
struct NameRegionHierarchy { static const char * get() { return "regionHierarchy"; } };
struct NameOSHierarchy { static const char * get() { return "OSHierarchy"; } };
struct NameSEHierarchy { static const char * get() { return "SEHierarchy"; } };
struct NameCategoryHierarchy{ static const char * get() { return "categoryHierarchy"; } };
typedef FunctionTransformWithDictionary<UInt32, RegionToCityImpl, RegionsHierarchy, NameRegionToCity> FunctionRegionToCity;
typedef FunctionTransformWithDictionary<UInt32, RegionToAreaImpl, RegionsHierarchy, NameRegionToArea> FunctionRegionToArea;
typedef FunctionTransformWithDictionary<UInt32, RegionToCountryImpl,RegionsHierarchy, NameRegionToCountry> FunctionRegionToCountry;
typedef FunctionTransformWithDictionary<UInt32, RegionToContinentImpl, RegionsHierarchy, NameRegionToContinent> FunctionRegionToContinent;
typedef FunctionTransformWithDictionary<UInt8, OSToRootImpl, TechDataHierarchy, NameOSToRoot> FunctionOSToRoot;
typedef FunctionTransformWithDictionary<UInt8, SEToRootImpl, TechDataHierarchy, NameSEToRoot> FunctionSEToRoot;
typedef FunctionTransformWithDictionary<UInt16, CategoryToRootImpl, CategoriesHierarchy,NameCategoryToRoot> FunctionCategoryToRoot;
typedef FunctionTransformWithDictionary<UInt16,CategoryToSecondLevelImpl,CategoriesHierarchy,NameCategoryToSecondLevel> FunctionCategoryToSecondLevel;
typedef FunctionIsInWithDictionary<UInt32, RegionInImpl, RegionsHierarchy, NameRegionIn> FunctionRegionIn;
typedef FunctionIsInWithDictionary<UInt8, OSInImpl, TechDataHierarchy, NameOSIn> FunctionOSIn;
typedef FunctionIsInWithDictionary<UInt8, SEInImpl, TechDataHierarchy, NameSEIn> FunctionSEIn;
typedef FunctionIsInWithDictionary<UInt16, CategoryInImpl, CategoriesHierarchy,NameCategoryIn> FunctionCategoryIn;
typedef FunctionHierarchyWithDictionary<UInt32, RegionHierarchyImpl, RegionsHierarchy, NameRegionHierarchy> FunctionRegionHierarchy;
typedef FunctionHierarchyWithDictionary<UInt8, OSHierarchyImpl, TechDataHierarchy, NameOSHierarchy> FunctionOSHierarchy;
typedef FunctionHierarchyWithDictionary<UInt8, SEHierarchyImpl, TechDataHierarchy, NameSEHierarchy> FunctionSEHierarchy;
typedef FunctionHierarchyWithDictionary<UInt16, CategoryHierarchyImpl, CategoriesHierarchy, NameCategoryHierarchy>FunctionCategoryHierarchy;
/// Преобразует числовой идентификатор региона в имя на заданном языке, используя словарь.
class FunctionRegionToName : public IFunction
{
private:
const SharedPtr<RegionsNames> owned_dict;
public:
FunctionRegionToName(const SharedPtr<RegionsNames> & owned_dict_)
: owned_dict(owned_dict_)
{
if (!owned_dict)
throw Exception("Dictionaries was not loaded. You need to check configuration file.", ErrorCodes::DICTIONARIES_WAS_NOT_LOADED);
}
/// Получить имя функции.
String getName() const
{
return "regionToName";
}
/// Получить тип результата по типам аргументов. Если функция неприменима для данных аргументов - кинуть исключение.
DataTypePtr getReturnType(const DataTypes & arguments) const
{
if (arguments.size() != 1 && arguments.size() != 2)
throw Exception("Number of arguments for function " + getName() + " doesn't match: passed "
+ toString(arguments.size()) + ", should be 1 or 2.",
ErrorCodes::NUMBER_OF_ARGUMENTS_DOESNT_MATCH);
if (arguments[0]->getName() != TypeName<UInt32>::get())
throw Exception("Illegal type " + arguments[0]->getName() + " of the first argument of function " + getName()
+ " (must be " + TypeName<UInt32>::get() + ")",
ErrorCodes::ILLEGAL_TYPE_OF_ARGUMENT);
if (arguments.size() == 2 && arguments[1]->getName() != TypeName<String>::get())
throw Exception("Illegal type " + arguments[0]->getName() + " of the second argument of function " + getName()
+ " (must be " + TypeName<String>::get() + ")",
ErrorCodes::ILLEGAL_TYPE_OF_ARGUMENT);
return new DataTypeString;
}
/// Выполнить функцию над блоком.
void execute(Block & block, const ColumnNumbers & arguments, size_t result)
{
RegionsNames::SupportedLanguages::Enum language = RegionsNames::SupportedLanguages::RU;
/// Если указан язык результата
if (arguments.size() == 2)
{
if (const ColumnConstString * col_language = dynamic_cast<const ColumnConstString *>(&*block.getByPosition(arguments[1]).column))
language = RegionsNames::getLanguageEnum(col_language->getData());
else
throw Exception("Illegal column " + block.getByPosition(arguments[1]).column->getName()
+ " of the second argument of function " + getName(),
ErrorCodes::ILLEGAL_COLUMN);
}
if (const ColumnVector<UInt32> * col_from = dynamic_cast<const ColumnVector<UInt32> *>(&*block.getByPosition(arguments[0]).column))
{
ColumnString * col_to = new ColumnString;
block.getByPosition(result).column = col_to;
const ColumnVector<UInt32>::Container_t & region_ids = col_from->getData();
const RegionsNames & dict = *owned_dict;
for (size_t i = 0; i < region_ids.size(); ++i)
{
const DB::StringRef & name_ref = dict.getRegionName(region_ids[i], language);
col_to->insertDataWithTerminatingZero(name_ref.data, name_ref.size + 1);
}
}
else if (const ColumnConst<UInt32> * col_from = dynamic_cast<const ColumnConst<UInt32> *>(&*block.getByPosition(arguments[0]).column))
{
UInt32 region_id = col_from->getData();
const DB::StringRef & name_ref = owned_dict->getRegionName(region_id, language);
block.getByPosition(result).column = new ColumnConstString(col_from->size(), name_ref.toString());
}
else
throw Exception("Illegal column " + block.getByPosition(arguments[0]).column->getName()
+ " of the first argument of function " + getName(),
ErrorCodes::ILLEGAL_COLUMN);
}
};
}
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