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https://github.com/ClickHouse/ClickHouse.git
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649 lines
25 KiB
C++
649 lines
25 KiB
C++
#pragma once
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#include <DataTypes/DataTypesNumber.h>
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#include <DataTypes/DataTypeArray.h>
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#include <DataTypes/DataTypeString.h>
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#include <Columns/ColumnsNumber.h>
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#include <Columns/ColumnConst.h>
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#include <Columns/ColumnArray.h>
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#include <Columns/ColumnString.h>
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#include <Interpreters/Context.h>
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#include <Interpreters/EmbeddedDictionaries.h>
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#include <Functions/IFunction.h>
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#include <Functions/FunctionHelpers.h>
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#include <Dictionaries/Embedded/RegionsHierarchy.h>
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#include <Dictionaries/Embedded/RegionsHierarchies.h>
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#include <Dictionaries/Embedded/RegionsNames.h>
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#include <IO/WriteHelpers.h>
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#include <Common/typeid_cast.h>
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#include <Core/Defines.h>
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#include "config.h"
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namespace DB
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{
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namespace ErrorCodes
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{
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extern const int ILLEGAL_TYPE_OF_ARGUMENT;
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extern const int DICTIONARIES_WAS_NOT_LOADED;
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extern const int BAD_ARGUMENTS;
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extern const int ILLEGAL_COLUMN;
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extern const int NUMBER_OF_ARGUMENTS_DOESNT_MATCH;
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}
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/** Functions using deprecated dictionaries
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* - dictionaries of regions, operating systems, search engines.
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*
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* Climb up the tree to a certain level.
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* regionToCity, regionToArea, regionToCountry, ...
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*
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* Convert values of a column
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* regionToName
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*
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* Whether the first identifier is a descendant of the second.
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* regionIn
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*
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* Get an array of region identifiers, consisting of the source and the parents chain. Order implementation defined.
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* regionHierarchy
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*/
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struct RegionToCityImpl
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{
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static UInt32 apply(UInt32 x, const RegionsHierarchy & hierarchy) { return hierarchy.toCity(x); }
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};
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struct RegionToAreaImpl
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{
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static UInt32 apply(UInt32 x, const RegionsHierarchy & hierarchy) { return hierarchy.toArea(x); }
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};
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struct RegionToDistrictImpl
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{
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static UInt32 apply(UInt32 x, const RegionsHierarchy & hierarchy) { return hierarchy.toDistrict(x); }
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};
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struct RegionToCountryImpl
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{
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static UInt32 apply(UInt32 x, const RegionsHierarchy & hierarchy) { return hierarchy.toCountry(x); }
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};
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struct RegionToContinentImpl
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{
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static UInt32 apply(UInt32 x, const RegionsHierarchy & hierarchy) { return hierarchy.toContinent(x); }
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};
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struct RegionToTopContinentImpl
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{
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static UInt32 apply(UInt32 x, const RegionsHierarchy & hierarchy) { return hierarchy.toTopContinent(x); }
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};
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struct RegionToPopulationImpl
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{
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static UInt32 apply(UInt32 x, const RegionsHierarchy & hierarchy) { return hierarchy.getPopulation(x); }
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};
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struct RegionInImpl
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{
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static bool apply(UInt32 x, UInt32 y, const RegionsHierarchy & hierarchy) { return hierarchy.in(x, y); }
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};
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struct RegionHierarchyImpl
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{
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static UInt32 toParent(UInt32 x, const RegionsHierarchy & hierarchy) { return hierarchy.toParent(x); }
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};
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/** Auxiliary thing, allowing to get from the dictionary a specific dictionary, corresponding to the point of view
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* (the dictionary key passed as function argument).
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* Example: when calling regionToCountry(x, 'ua'), a dictionary can be used, in which Crimea refers to Ukraine.
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*/
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struct RegionsHierarchyGetter
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{
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using Src = const RegionsHierarchies;
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using Dst = const RegionsHierarchy;
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static Dst & get(Src & src, const std::string & key)
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{
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return src.get(key);
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}
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};
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/** For dictionaries without key support. Doing nothing.
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*/
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template <typename Dict>
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struct IdentityDictionaryGetter
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{
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using Src = const Dict;
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using Dst = const Dict;
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static Dst & get(Src & src, const std::string & key)
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{
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if (key.empty())
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return src;
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else
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throw Exception(ErrorCodes::BAD_ARGUMENTS, "Dictionary doesn't support 'point of view' keys.");
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}
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};
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/// Converts an identifier using a dictionary.
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template <typename T, typename Transform, typename DictGetter, typename Name>
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class FunctionTransformWithDictionary : public IFunction
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{
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public:
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static constexpr auto name = Name::name;
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using base_type = FunctionTransformWithDictionary;
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private:
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const std::shared_ptr<typename DictGetter::Src> owned_dict;
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public:
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explicit FunctionTransformWithDictionary(const std::shared_ptr<typename DictGetter::Src> & owned_dict_)
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: owned_dict(owned_dict_)
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{
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if (!owned_dict)
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throw Exception(ErrorCodes::DICTIONARIES_WAS_NOT_LOADED, "Embedded dictionaries were not loaded. You need to check configuration file.");
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}
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String getName() const override
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{
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return name;
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}
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bool isVariadic() const override { return true; }
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size_t getNumberOfArguments() const override { return 0; }
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bool isSuitableForShortCircuitArgumentsExecution(const DataTypesWithConstInfo & /*arguments*/) const override { return true; }
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DataTypePtr getReturnTypeImpl(const DataTypes & arguments) const override
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{
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if (arguments.size() != 1 && arguments.size() != 2)
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throw Exception(ErrorCodes::NUMBER_OF_ARGUMENTS_DOESNT_MATCH,
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"Number of arguments for function {} doesn't match: passed {}, should be 1 or 2.",
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getName(), arguments.size());
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if (arguments[0]->getName() != TypeName<T>)
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throw Exception(ErrorCodes::ILLEGAL_TYPE_OF_ARGUMENT, "Illegal type {} of argument of function {} (must be {})",
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arguments[0]->getName(), getName(), TypeName<T>);
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if (arguments.size() == 2 && arguments[1]->getName() != "String")
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throw Exception(ErrorCodes::ILLEGAL_TYPE_OF_ARGUMENT,
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"Illegal type {} of the second ('point of view') argument of function {} (must be String)",
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arguments[1]->getName(), getName());
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return arguments[0];
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}
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bool useDefaultImplementationForConstants() const override { return true; }
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ColumnNumbers getArgumentsThatAreAlwaysConstant() const override { return {1}; }
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bool isDeterministic() const override { return false; }
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ColumnPtr executeImpl(const ColumnsWithTypeAndName & arguments, const DataTypePtr &, size_t /*input_rows_count*/) const override
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{
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/// The dictionary key that defines the "point of view".
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std::string dict_key;
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if (arguments.size() == 2)
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{
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const ColumnConst * key_col = checkAndGetColumnConst<ColumnString>(arguments[1].column.get());
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if (!key_col)
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throw Exception(ErrorCodes::ILLEGAL_COLUMN, "Illegal column {} of second ('point of view') argument of function {}. "
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"Must be constant string.", arguments[1].column->getName(), name);
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dict_key = key_col->getValue<String>();
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}
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const typename DictGetter::Dst & dict = DictGetter::get(*owned_dict, dict_key);
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if (const ColumnVector<T> * col_from = checkAndGetColumn<ColumnVector<T>>(arguments[0].column.get()))
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{
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auto col_to = ColumnVector<T>::create();
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const typename ColumnVector<T>::Container & vec_from = col_from->getData();
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typename ColumnVector<T>::Container & vec_to = col_to->getData();
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size_t size = vec_from.size();
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vec_to.resize(size);
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for (size_t i = 0; i < size; ++i)
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vec_to[i] = Transform::apply(vec_from[i], dict);
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return col_to;
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}
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else
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throw Exception(ErrorCodes::ILLEGAL_COLUMN, "Illegal column {} of first argument of function {}",
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arguments[0].column->getName(), name);
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}
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};
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/// Checks belonging using a dictionary.
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template <typename T, typename Transform, typename DictGetter, typename Name>
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class FunctionIsInWithDictionary : public IFunction
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{
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public:
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static constexpr auto name = Name::name;
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using base_type = FunctionIsInWithDictionary;
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private:
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const std::shared_ptr<typename DictGetter::Src> owned_dict;
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public:
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explicit FunctionIsInWithDictionary(const std::shared_ptr<typename DictGetter::Src> & owned_dict_)
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: owned_dict(owned_dict_)
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{
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if (!owned_dict)
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throw Exception(ErrorCodes::DICTIONARIES_WAS_NOT_LOADED, "Embedded dictionaries were not loaded. You need to check configuration file.");
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}
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String getName() const override
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{
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return name;
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}
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bool isVariadic() const override { return true; }
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size_t getNumberOfArguments() const override { return 0; }
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bool isSuitableForShortCircuitArgumentsExecution(const DataTypesWithConstInfo & /*arguments*/) const override { return true; }
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DataTypePtr getReturnTypeImpl(const DataTypes & arguments) const override
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{
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if (arguments.size() != 2 && arguments.size() != 3)
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throw Exception(ErrorCodes::NUMBER_OF_ARGUMENTS_DOESNT_MATCH,
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"Number of arguments for function {} doesn't match: passed {}, should be 2 or 3.",
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getName(), arguments.size());
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if (arguments[0]->getName() != TypeName<T>)
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throw Exception(ErrorCodes::ILLEGAL_TYPE_OF_ARGUMENT, "Illegal type {} of first argument of function {} (must be {})",
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arguments[0]->getName(), getName(), TypeName<T>);
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if (arguments[1]->getName() != TypeName<T>)
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throw Exception(ErrorCodes::ILLEGAL_TYPE_OF_ARGUMENT, "Illegal type {} of second argument of function {} (must be {})",
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arguments[1]->getName(), getName(), TypeName<T>);
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if (arguments.size() == 3 && arguments[2]->getName() != "String")
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throw Exception(ErrorCodes::ILLEGAL_TYPE_OF_ARGUMENT,
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"Illegal type {} of the third ('point of view') argument of function {} (must be String)",
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arguments[2]->getName(), getName());
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return std::make_shared<DataTypeUInt8>();
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}
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bool isDeterministic() const override { return false; }
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ColumnPtr executeImpl(const ColumnsWithTypeAndName & arguments, const DataTypePtr &, size_t /*input_rows_count*/) const override
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{
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/// The dictionary key that defines the "point of view".
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std::string dict_key;
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if (arguments.size() == 3)
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{
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const ColumnConst * key_col = checkAndGetColumnConst<ColumnString>(arguments[2].column.get());
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if (!key_col)
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throw Exception(ErrorCodes::ILLEGAL_COLUMN, "Illegal column {} of third ('point of view') argument of function {}. "
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"Must be constant string.", arguments[2].column->getName(), name);
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dict_key = key_col->getValue<String>();
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}
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const typename DictGetter::Dst & dict = DictGetter::get(*owned_dict, dict_key);
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const ColumnVector<T> * col_vec1 = checkAndGetColumn<ColumnVector<T>>(arguments[0].column.get());
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const ColumnVector<T> * col_vec2 = checkAndGetColumn<ColumnVector<T>>(arguments[1].column.get());
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const ColumnConst * col_const1 = checkAndGetColumnConst<ColumnVector<T>>(arguments[0].column.get());
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const ColumnConst * col_const2 = checkAndGetColumnConst<ColumnVector<T>>(arguments[1].column.get());
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if (col_vec1 && col_vec2)
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{
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auto col_to = ColumnUInt8::create();
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const typename ColumnVector<T>::Container & vec_from1 = col_vec1->getData();
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const typename ColumnVector<T>::Container & vec_from2 = col_vec2->getData();
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typename ColumnUInt8::Container & vec_to = col_to->getData();
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size_t size = vec_from1.size();
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vec_to.resize(size);
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for (size_t i = 0; i < size; ++i)
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vec_to[i] = Transform::apply(vec_from1[i], vec_from2[i], dict);
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return col_to;
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}
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else if (col_vec1 && col_const2)
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{
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auto col_to = ColumnUInt8::create();
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const typename ColumnVector<T>::Container & vec_from1 = col_vec1->getData();
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const T const_from2 = col_const2->template getValue<T>();
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typename ColumnUInt8::Container & vec_to = col_to->getData();
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size_t size = vec_from1.size();
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vec_to.resize(size);
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for (size_t i = 0; i < size; ++i)
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vec_to[i] = Transform::apply(vec_from1[i], const_from2, dict);
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return col_to;
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}
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else if (col_const1 && col_vec2)
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{
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auto col_to = ColumnUInt8::create();
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const T const_from1 = col_const1->template getValue<T>();
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const typename ColumnVector<T>::Container & vec_from2 = col_vec2->getData();
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typename ColumnUInt8::Container & vec_to = col_to->getData();
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size_t size = vec_from2.size();
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vec_to.resize(size);
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for (size_t i = 0; i < size; ++i)
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vec_to[i] = Transform::apply(const_from1, vec_from2[i], dict);
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return col_to;
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}
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else if (col_const1 && col_const2)
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{
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return DataTypeUInt8().createColumnConst(col_const1->size(),
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toField(Transform::apply(col_const1->template getValue<T>(), col_const2->template getValue<T>(), dict)));
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}
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else
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throw Exception(ErrorCodes::ILLEGAL_COLUMN, "Illegal columns {} and {} of arguments of function {}",
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arguments[0].column->getName(), arguments[1].column->getName(), name);
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}
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};
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/// Gets an array of identifiers consisting of the source and the parents chain.
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template <typename T, typename Transform, typename DictGetter, typename Name>
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class FunctionHierarchyWithDictionary : public IFunction
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{
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public:
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static constexpr auto name = Name::name;
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using base_type = FunctionHierarchyWithDictionary;
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private:
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const std::shared_ptr<typename DictGetter::Src> owned_dict;
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public:
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explicit FunctionHierarchyWithDictionary(const std::shared_ptr<typename DictGetter::Src> & owned_dict_)
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: owned_dict(owned_dict_)
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{
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if (!owned_dict)
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throw Exception(ErrorCodes::DICTIONARIES_WAS_NOT_LOADED, "Embedded dictionaries were not loaded. You need to check configuration file.");
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}
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String getName() const override
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{
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return name;
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}
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bool isVariadic() const override { return true; }
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size_t getNumberOfArguments() const override { return 0; }
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bool isSuitableForShortCircuitArgumentsExecution(const DataTypesWithConstInfo & /*arguments*/) const override { return true; }
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DataTypePtr getReturnTypeImpl(const DataTypes & arguments) const override
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{
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if (arguments.size() != 1 && arguments.size() != 2)
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throw Exception(ErrorCodes::NUMBER_OF_ARGUMENTS_DOESNT_MATCH,
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"Number of arguments for function {} doesn't match: passed {}, should be 1 or 2.",
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getName(), arguments.size());
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if (arguments[0]->getName() != TypeName<T>)
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throw Exception(ErrorCodes::ILLEGAL_TYPE_OF_ARGUMENT, "Illegal type {} of argument of function {} (must be {})",
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arguments[0]->getName(), getName(), TypeName<T>);
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if (arguments.size() == 2 && arguments[1]->getName() != "String")
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throw Exception(ErrorCodes::ILLEGAL_TYPE_OF_ARGUMENT,
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"Illegal type {} of the second ('point of view') argument of function {} (must be String)",
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arguments[1]->getName(), getName());
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return std::make_shared<DataTypeArray>(arguments[0]);
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}
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bool useDefaultImplementationForConstants() const override { return true; }
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ColumnNumbers getArgumentsThatAreAlwaysConstant() const override { return {1}; }
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bool isDeterministic() const override { return false; }
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ColumnPtr executeImpl(const ColumnsWithTypeAndName & arguments, const DataTypePtr &, size_t /*input_rows_count*/) const override
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{
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/// The dictionary key that defines the "point of view".
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std::string dict_key;
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if (arguments.size() == 2)
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{
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const ColumnConst * key_col = checkAndGetColumnConst<ColumnString>(arguments[1].column.get());
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if (!key_col)
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throw Exception(ErrorCodes::ILLEGAL_COLUMN, "Illegal column {} of second ('point of view') argument of function {}. "
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"Must be constant string.", arguments[1].column->getName(), name);
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dict_key = key_col->getValue<String>();
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}
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const typename DictGetter::Dst & dict = DictGetter::get(*owned_dict, dict_key);
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if (const ColumnVector<T> * col_from = checkAndGetColumn<ColumnVector<T>>(arguments[0].column.get()))
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{
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auto col_values = ColumnVector<T>::create();
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auto col_offsets = ColumnArray::ColumnOffsets::create();
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auto & res_offsets = col_offsets->getData();
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auto & res_values = col_values->getData();
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const typename ColumnVector<T>::Container & vec_from = col_from->getData();
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size_t size = vec_from.size();
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res_offsets.resize(size);
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res_values.reserve(size * 4);
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for (size_t i = 0; i < size; ++i)
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{
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T cur = vec_from[i];
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for (size_t depth = 0; cur && depth < DBMS_HIERARCHICAL_DICTIONARY_MAX_DEPTH; ++depth)
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{
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res_values.push_back(cur);
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cur = Transform::toParent(cur, dict);
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}
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res_offsets[i] = res_values.size();
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}
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return ColumnArray::create(std::move(col_values), std::move(col_offsets));
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}
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else
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throw Exception(ErrorCodes::ILLEGAL_COLUMN, "Illegal column {} of first argument of function {}",
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arguments[0].column->getName(), name);
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}
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};
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struct NameRegionToCity { static constexpr auto name = "regionToCity"; };
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struct NameRegionToArea { static constexpr auto name = "regionToArea"; };
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struct NameRegionToDistrict { static constexpr auto name = "regionToDistrict"; };
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struct NameRegionToCountry { static constexpr auto name = "regionToCountry"; };
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struct NameRegionToContinent { static constexpr auto name = "regionToContinent"; };
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struct NameRegionToTopContinent { static constexpr auto name = "regionToTopContinent"; };
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struct NameRegionToPopulation { static constexpr auto name = "regionToPopulation"; };
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struct NameRegionHierarchy { static constexpr auto name = "regionHierarchy"; };
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struct NameRegionIn { static constexpr auto name = "regionIn"; };
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struct FunctionRegionToCity :
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public FunctionTransformWithDictionary<UInt32, RegionToCityImpl, RegionsHierarchyGetter, NameRegionToCity>
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{
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static FunctionPtr create(ContextPtr context)
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{
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return std::make_shared<base_type>(context->getEmbeddedDictionaries().getRegionsHierarchies());
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}
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};
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struct FunctionRegionToArea :
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public FunctionTransformWithDictionary<UInt32, RegionToAreaImpl, RegionsHierarchyGetter, NameRegionToArea>
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{
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static FunctionPtr create(ContextPtr context)
|
|
{
|
|
return std::make_shared<base_type>(context->getEmbeddedDictionaries().getRegionsHierarchies());
|
|
}
|
|
};
|
|
|
|
struct FunctionRegionToDistrict :
|
|
public FunctionTransformWithDictionary<UInt32, RegionToDistrictImpl, RegionsHierarchyGetter, NameRegionToDistrict>
|
|
{
|
|
static FunctionPtr create(ContextPtr context)
|
|
{
|
|
return std::make_shared<base_type>(context->getEmbeddedDictionaries().getRegionsHierarchies());
|
|
}
|
|
};
|
|
|
|
struct FunctionRegionToCountry :
|
|
public FunctionTransformWithDictionary<UInt32, RegionToCountryImpl, RegionsHierarchyGetter, NameRegionToCountry>
|
|
{
|
|
static FunctionPtr create(ContextPtr context)
|
|
{
|
|
return std::make_shared<base_type>(context->getEmbeddedDictionaries().getRegionsHierarchies());
|
|
}
|
|
};
|
|
|
|
struct FunctionRegionToContinent :
|
|
public FunctionTransformWithDictionary<UInt32, RegionToContinentImpl, RegionsHierarchyGetter, NameRegionToContinent>
|
|
{
|
|
static FunctionPtr create(ContextPtr context)
|
|
{
|
|
return std::make_shared<base_type>(context->getEmbeddedDictionaries().getRegionsHierarchies());
|
|
}
|
|
};
|
|
|
|
struct FunctionRegionToTopContinent :
|
|
public FunctionTransformWithDictionary<UInt32, RegionToTopContinentImpl, RegionsHierarchyGetter, NameRegionToTopContinent>
|
|
{
|
|
static FunctionPtr create(ContextPtr context)
|
|
{
|
|
return std::make_shared<base_type>(context->getEmbeddedDictionaries().getRegionsHierarchies());
|
|
}
|
|
};
|
|
|
|
struct FunctionRegionToPopulation :
|
|
public FunctionTransformWithDictionary<UInt32, RegionToPopulationImpl, RegionsHierarchyGetter, NameRegionToPopulation>
|
|
{
|
|
static FunctionPtr create(ContextPtr context)
|
|
{
|
|
return std::make_shared<base_type>(context->getEmbeddedDictionaries().getRegionsHierarchies());
|
|
}
|
|
};
|
|
|
|
struct FunctionRegionIn :
|
|
public FunctionIsInWithDictionary<UInt32, RegionInImpl, RegionsHierarchyGetter, NameRegionIn>
|
|
{
|
|
static FunctionPtr create(ContextPtr context)
|
|
{
|
|
return std::make_shared<base_type>(context->getEmbeddedDictionaries().getRegionsHierarchies());
|
|
}
|
|
};
|
|
|
|
struct FunctionRegionHierarchy :
|
|
public FunctionHierarchyWithDictionary<UInt32, RegionHierarchyImpl, RegionsHierarchyGetter, NameRegionHierarchy>
|
|
{
|
|
static FunctionPtr create(ContextPtr context)
|
|
{
|
|
return std::make_shared<base_type>(context->getEmbeddedDictionaries().getRegionsHierarchies());
|
|
}
|
|
};
|
|
|
|
|
|
/// Converts a region's numeric identifier to a name in the specified language using a dictionary.
|
|
class FunctionRegionToName : public IFunction
|
|
{
|
|
public:
|
|
static constexpr auto name = "regionToName";
|
|
static FunctionPtr create(ContextPtr context)
|
|
{
|
|
return std::make_shared<FunctionRegionToName>(context->getEmbeddedDictionaries().getRegionsNames());
|
|
}
|
|
|
|
private:
|
|
const MultiVersion<RegionsNames>::Version owned_dict;
|
|
|
|
public:
|
|
explicit FunctionRegionToName(const MultiVersion<RegionsNames>::Version & owned_dict_)
|
|
: owned_dict(owned_dict_)
|
|
{
|
|
if (!owned_dict)
|
|
throw Exception(ErrorCodes::DICTIONARIES_WAS_NOT_LOADED, "Embedded dictionaries were not loaded. You need to check configuration file.");
|
|
}
|
|
|
|
String getName() const override
|
|
{
|
|
return name;
|
|
}
|
|
|
|
bool isVariadic() const override { return true; }
|
|
size_t getNumberOfArguments() const override { return 0; }
|
|
|
|
/// For the purpose of query optimization, we assume this function to be injective
|
|
/// even in face of fact that there are many different cities named Paris.
|
|
bool isInjective(const ColumnsWithTypeAndName &) const override { return true; }
|
|
|
|
bool isSuitableForShortCircuitArgumentsExecution(const DataTypesWithConstInfo & /*arguments*/) const override { return true; }
|
|
|
|
DataTypePtr getReturnTypeImpl(const DataTypes & arguments) const override
|
|
{
|
|
if (arguments.size() != 1 && arguments.size() != 2)
|
|
throw Exception(ErrorCodes::NUMBER_OF_ARGUMENTS_DOESNT_MATCH,
|
|
"Number of arguments for function {} doesn't match: passed {}, should be 1 or 2.",
|
|
getName(), arguments.size());
|
|
|
|
if (arguments[0]->getName() != "UInt32")
|
|
throw Exception(ErrorCodes::ILLEGAL_TYPE_OF_ARGUMENT,
|
|
"Illegal type {} of the first argument of function {} (must be UInt32)",
|
|
arguments[0]->getName(), getName());
|
|
|
|
if (arguments.size() == 2 && arguments[1]->getName() != "String")
|
|
throw Exception(ErrorCodes::ILLEGAL_TYPE_OF_ARGUMENT,
|
|
"Illegal type {} of the second argument of function {} (must be String)",
|
|
arguments[0]->getName(), getName());
|
|
|
|
return std::make_shared<DataTypeString>();
|
|
}
|
|
|
|
bool useDefaultImplementationForConstants() const override { return true; }
|
|
ColumnNumbers getArgumentsThatAreAlwaysConstant() const override { return {1}; }
|
|
|
|
bool isDeterministic() const override { return false; }
|
|
|
|
ColumnPtr executeImpl(const ColumnsWithTypeAndName & arguments, const DataTypePtr &, size_t /*input_rows_count*/) const override
|
|
{
|
|
RegionsNames::Language language = RegionsNames::Language::ru;
|
|
|
|
/// If the result language is specified
|
|
if (arguments.size() == 2)
|
|
{
|
|
if (const ColumnConst * col_language = checkAndGetColumnConst<ColumnString>(arguments[1].column.get()))
|
|
language = RegionsNames::getLanguageEnum(col_language->getValue<String>());
|
|
else
|
|
throw Exception(ErrorCodes::ILLEGAL_COLUMN, "Illegal column {} of the second argument of function {}",
|
|
arguments[1].column->getName(), getName());
|
|
}
|
|
|
|
const RegionsNames & dict = *owned_dict;
|
|
|
|
if (const ColumnUInt32 * col_from = typeid_cast<const ColumnUInt32 *>(arguments[0].column.get()))
|
|
{
|
|
auto col_to = ColumnString::create();
|
|
|
|
const ColumnUInt32::Container & region_ids = col_from->getData();
|
|
|
|
for (unsigned int region_id : region_ids)
|
|
{
|
|
const StringRef & name_ref = dict.getRegionName(region_id, language);
|
|
col_to->insertData(name_ref.data, name_ref.size);
|
|
}
|
|
|
|
return col_to;
|
|
}
|
|
else
|
|
throw Exception(ErrorCodes::ILLEGAL_COLUMN, "Illegal column {} of the first argument of function {}",
|
|
arguments[0].column->getName(), getName());
|
|
}
|
|
};
|
|
|
|
}
|