#include "config_functions.h" #if USE_H3 #include #include #include #include #include #include #include #include #include namespace DB { namespace ErrorCodes { extern const int ILLEGAL_TYPE_OF_ARGUMENT; } namespace { class FunctionH3CellAreaM2 : public IFunction { public: static constexpr auto name = "h3CellAreaM2"; static FunctionPtr create(ContextPtr) { return std::make_shared(); } std::string getName() const override { return name; } size_t getNumberOfArguments() const override { return 1; } bool useDefaultImplementationForConstants() const override { return true; } bool isSuitableForShortCircuitArgumentsExecution(const DataTypesWithConstInfo & /*arguments*/) const override { return false; } DataTypePtr getReturnTypeImpl(const DataTypes & arguments) const override { const auto * arg = arguments[0].get(); if (!WhichDataType(arg).isUInt64()) throw Exception( ErrorCodes::ILLEGAL_TYPE_OF_ARGUMENT, "Illegal type {} of argument {} of function {}. Must be UInt64", arg->getName(), 1, getName()); return std::make_shared(); } ColumnPtr executeImpl(const ColumnsWithTypeAndName & arguments, const DataTypePtr &, size_t input_rows_count) const override { const auto * column = checkAndGetColumn(arguments[0].column.get()); const auto & data = column->getData(); auto dst = ColumnVector::create(); auto & dst_data = dst->getData(); dst_data.resize(input_rows_count); for (size_t row = 0; row < input_rows_count; ++row) { const UInt64 resolution = data[row]; Float64 res = cellAreaM2(resolution); dst_data[row] = res; } return dst; } }; } void registerFunctionH3CellAreaM2(FunctionFactory & factory) { factory.registerFunction(); } } #endif