2020-11-04 14:51:41 +00:00
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#if !defined(ARCADIA_BUILD)
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# include "config_functions.h"
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#endif
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#if USE_H3
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2020-06-19 10:06:42 +00:00
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#include <Columns/ColumnsNumber.h>
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#include <DataTypes/DataTypesNumber.h>
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#include <Functions/FunctionFactory.h>
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#include <Functions/IFunction.h>
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#include <Common/typeid_cast.h>
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#include <ext/range.h>
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#include <h3api.h>
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2019-12-04 17:57:02 +00:00
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namespace DB
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{
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2020-02-25 18:10:48 +00:00
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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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}
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2020-09-07 18:00:37 +00:00
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namespace
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{
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2019-12-04 17:57:02 +00:00
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class FunctionH3IsValid : public IFunction
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{
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public:
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static constexpr auto name = "h3IsValid";
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2021-06-01 12:20:52 +00:00
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static FunctionPtr create(ContextPtr) { return std::make_shared<FunctionH3IsValid>(); }
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2019-12-04 17:57:02 +00:00
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std::string getName() const override { return name; }
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size_t getNumberOfArguments() const override { return 1; }
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bool useDefaultImplementationForConstants() const override { return true; }
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DataTypePtr getReturnTypeImpl(const DataTypes & arguments) const override
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{
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2020-04-22 08:31:10 +00:00
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const auto * arg = arguments[0].get();
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2019-12-04 17:57:02 +00:00
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if (!WhichDataType(arg).isUInt64())
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throw Exception(
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"Illegal type " + arg->getName() + " of argument " + std::to_string(1) + " of function " + getName() + ". Must be UInt64",
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ErrorCodes::ILLEGAL_TYPE_OF_ARGUMENT);
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return std::make_shared<DataTypeUInt8>();
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}
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2020-11-17 13:24:45 +00:00
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ColumnPtr executeImpl(const ColumnsWithTypeAndName & arguments, const DataTypePtr &, size_t input_rows_count) const override
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2019-12-04 17:57:02 +00:00
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{
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2020-10-19 13:42:14 +00:00
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const auto * col_hindex = arguments[0].column.get();
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2019-12-04 17:57:02 +00:00
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auto dst = ColumnVector<UInt8>::create();
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auto & dst_data = dst->getData();
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dst_data.resize(input_rows_count);
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for (const auto row : ext::range(0, input_rows_count))
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{
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const UInt64 hindex = col_hindex->getUInt(row);
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2019-12-16 18:51:42 +00:00
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UInt8 is_valid = h3IsValid(hindex) == 0 ? 0 : 1;
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2019-12-04 17:57:02 +00:00
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dst_data[row] = is_valid;
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}
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2020-10-19 13:42:14 +00:00
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return dst;
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2019-12-04 17:57:02 +00:00
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}
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};
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2020-09-07 18:00:37 +00:00
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}
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2019-12-04 17:57:02 +00:00
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void registerFunctionH3IsValid(FunctionFactory & factory)
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{
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factory.registerFunction<FunctionH3IsValid>();
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}
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}
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2020-11-04 14:51:41 +00:00
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#endif
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