ClickHouse
90 строк · 2.5 Кб
1#include "config.h"2
3#if USE_H34
5#include <Columns/ColumnsNumber.h>6#include <DataTypes/DataTypesNumber.h>7#include <Functions/FunctionFactory.h>8#include <Functions/IFunction.h>9#include <Common/typeid_cast.h>10#include <base/range.h>11
12#include <h3api.h>13
14
15namespace DB16{
17namespace ErrorCodes18{
19extern const int ILLEGAL_TYPE_OF_ARGUMENT;20extern const int ILLEGAL_COLUMN;21}
22
23namespace
24{
25
26class FunctionH3IsResClassIII : public IFunction27{
28public:29static constexpr auto name = "h3IsResClassIII";30
31static FunctionPtr create(ContextPtr) { return std::make_shared<FunctionH3IsResClassIII>(); }32
33std::string getName() const override { return name; }34
35size_t getNumberOfArguments() const override { return 1; }36bool useDefaultImplementationForConstants() const override { return true; }37bool isSuitableForShortCircuitArgumentsExecution(const DataTypesWithConstInfo & /*arguments*/) const override { return false; }38
39DataTypePtr getReturnTypeImpl(const DataTypes & arguments) const override40{41const auto * arg = arguments[0].get();42if (!WhichDataType(arg).isUInt64())43throw Exception(44ErrorCodes::ILLEGAL_TYPE_OF_ARGUMENT,45"Illegal type {} of argument {} of function {}. Must be UInt64",46arg->getName(), 1, getName());47
48return std::make_shared<DataTypeUInt8>();49}50
51ColumnPtr executeImpl(const ColumnsWithTypeAndName & arguments, const DataTypePtr &, size_t input_rows_count) const override52{53auto non_const_arguments = arguments;54for (auto & argument : non_const_arguments)55argument.column = argument.column->convertToFullColumnIfConst();56
57const auto * column = checkAndGetColumn<ColumnUInt64>(non_const_arguments[0].column.get());58if (!column)59throw Exception(60ErrorCodes::ILLEGAL_COLUMN,61"Illegal type {} of argument {} of function {}. Must be UInt64",62arguments[0].type->getName(),631,64getName());65
66const auto & data = column->getData();67
68auto dst = ColumnVector<UInt8>::create();69auto & dst_data = dst->getData();70dst_data.resize(input_rows_count);71
72for (size_t row = 0; row < input_rows_count; ++row)73{74UInt8 res = isResClassIII(data[row]);75dst_data[row] = res;76}77return dst;78}79};80
81}
82
83REGISTER_FUNCTION(H3IsResClassIII)84{
85factory.registerFunction<FunctionH3IsResClassIII>();86}
87
88}
89
90#endif91