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109 lines
3.0 KiB
C++
109 lines
3.0 KiB
C++
#include "config_functions.h"
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#include <Columns/ColumnsNumber.h>
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#include <Columns/ColumnTuple.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/IFunctionImpl.h>
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#include <Common/typeid_cast.h>
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#include <ext/range.h>
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#include "../contrib/s2geometry/src/s2/s2latlng.h"
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#include "../contrib/s2geometry/src/s2/s2cell_id.h"
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class S2CellId;
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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 NUMBER_OF_ARGUMENTS_DOESNT_MATCH;
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}
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namespace
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{
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/// TODO: Comment this
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class FunctionS2CellsIntersect : public IFunction
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{
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public:
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static constexpr auto name = "S2CellsIntersect";
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static FunctionPtr create(ContextPtr)
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{
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return std::make_shared<FunctionS2CellsIntersect>();
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}
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std::string getName() const override
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{
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return name;
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}
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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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size_t number_of_arguments = arguments.size();
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if (number_of_arguments != 2) {
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throw Exception("Number of arguments for function " + getName() + " doesn't match: passed "
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+ toString(number_of_arguments) + ", should be 2",
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ErrorCodes::NUMBER_OF_ARGUMENTS_DOESNT_MATCH);
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}
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const auto * arg = arguments[0].get();
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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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}
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arg = arguments[1].get();
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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(2) + " of function " + getName() + ". Must be UInt64",
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ErrorCodes::ILLEGAL_TYPE_OF_ARGUMENT);
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}
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return std::make_shared<DataTypeUInt8>();
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}
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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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const auto * col_id_first = arguments[0].column.get();
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const auto * col_id_second = arguments[1].column.get();
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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 id_first = col_id_first->getInt(row);
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const UInt64 id_second = col_id_second->getInt(row);
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dst_data[row] = S2CellId(id_first).intersects(S2CellId(id_second));
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}
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return dst;
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}
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};
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}
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void registerFunctionS2CellsIntersect(FunctionFactory & factory)
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{
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factory.registerFunction<FunctionS2CellsIntersect>();
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}
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}
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