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107 lines
2.8 KiB
C++
107 lines
2.8 KiB
C++
#if !defined(ARCADIA_BUILD)
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# include "config_functions.h"
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#endif
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#if USE_S2_GEOMETRY
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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 <Common/typeid_cast.h>
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#include <common/range.h>
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#include "s2_fwd.h"
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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 BAD_ARGUMENTS;
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}
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namespace
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{
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/**
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* Each cell in s2 library is a quadrilateral bounded by four geodesics.
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*/
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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 2; }
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bool useDefaultImplementationForConstants() const override { return true; }
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bool isSuitableForShortCircuitArgumentsExecution(const DataTypesWithConstInfo & /*arguments*/) const override { return true; }
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DataTypePtr getReturnTypeImpl(const DataTypes & arguments) const override
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{
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for (size_t i = 0; i < getNumberOfArguments(); ++i)
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{
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const auto * arg = arguments[i].get();
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if (!WhichDataType(arg).isUInt64())
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throw Exception(
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ErrorCodes::ILLEGAL_TYPE_OF_ARGUMENT,
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"Illegal type {} of argument {} of function {}. Must be UInt64",
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arg->getName(), i, getName());
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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 = ColumnUInt8::create();
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auto & dst_data = dst->getData();
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dst_data.reserve(input_rows_count);
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for (const auto row : collections::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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auto first_cell = S2CellId(id_first);
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auto second_cell = S2CellId(id_second);
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if (!first_cell.is_valid() || !second_cell.is_valid())
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throw Exception(ErrorCodes::BAD_ARGUMENTS, "Cell is not valid");
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dst_data.emplace_back(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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#endif
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