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73 lines
2.0 KiB
C++
73 lines
2.0 KiB
C++
#include "config_functions.h"
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#if USE_H3
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#include <Columns/ColumnArray.h>
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#include <Columns/ColumnsNumber.h>
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#include <Columns/ColumnConst.h>
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#include <DataTypes/DataTypeArray.h>
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#include <DataTypes/DataTypesNumber.h>
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#include <DataTypes/DataTypeTuple.h>
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#include <Functions/FunctionFactory.h>
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#include <Functions/IFunction.h>
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#include <IO/WriteHelpers.h>
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#include <Common/typeid_cast.h>
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#include <base/range.h>
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#include <h3api.h>
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namespace DB
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{
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namespace
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{
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class FunctionH3GetRes0Indexes final : public IFunction
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{
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public:
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static constexpr auto name = "h3GetRes0Indexes";
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static FunctionPtr create(ContextPtr) { return std::make_shared<FunctionH3GetRes0Indexes>(); }
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std::string getName() const override { return name; }
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size_t getNumberOfArguments() const override { return 0; }
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bool useDefaultImplementationForConstants() const override { return true; }
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bool isSuitableForShortCircuitArgumentsExecution(const DataTypesWithConstInfo & /*arguments*/) const override { return false; }
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DataTypePtr getReturnTypeImpl(const DataTypes & /*arguments*/) const override
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{
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return std::make_shared<DataTypeArray>(std::make_shared<DataTypeUInt64>());
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}
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ColumnPtr executeImpl(const ColumnsWithTypeAndName &, const DataTypePtr & result_type, size_t input_rows_count) const override
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{
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if (input_rows_count == 0)
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return result_type->createColumn();
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std::vector<H3Index> res0_indexes;
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const auto cell_count = res0CellCount();
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res0_indexes.resize(cell_count);
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getRes0Cells(res0_indexes.data());
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auto res = ColumnArray::create(ColumnUInt64::create());
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Array res_indexes;
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res_indexes.insert(res_indexes.end(), res0_indexes.begin(), res0_indexes.end());
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res->insert(res_indexes);
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return result_type->createColumnConst(input_rows_count, res_indexes);
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}
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};
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}
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void registerFunctionH3GetRes0Indexes(FunctionFactory & factory)
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{
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factory.registerFunction<FunctionH3GetRes0Indexes>();
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}
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}
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#endif
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