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136 lines
9.2 KiB
C++
136 lines
9.2 KiB
C++
#include <AggregateFunctions/AggregateFunctionQuantile.h>
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#include <AggregateFunctions/AggregateFunctionFactory.h>
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#include <AggregateFunctions/Helpers.h>
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#include <Core/Field.h>
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#include "registerAggregateFunctions.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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}
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namespace
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{
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template <typename Value, bool float_return> using FuncQuantile = AggregateFunctionQuantile<Value, QuantileReservoirSampler<Value>, NameQuantile, false, std::conditional_t<float_return, Float64, void>, false>;
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template <typename Value, bool float_return> using FuncQuantiles = AggregateFunctionQuantile<Value, QuantileReservoirSampler<Value>, NameQuantiles, false, std::conditional_t<float_return, Float64, void>, true>;
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template <typename Value, bool float_return> using FuncQuantileDeterministic = AggregateFunctionQuantile<Value, QuantileReservoirSamplerDeterministic<Value>, NameQuantileDeterministic, true, std::conditional_t<float_return, Float64, void>, false>;
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template <typename Value, bool float_return> using FuncQuantilesDeterministic = AggregateFunctionQuantile<Value, QuantileReservoirSamplerDeterministic<Value>, NameQuantilesDeterministic, true, std::conditional_t<float_return, Float64, void>, true>;
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template <typename Value, bool _> using FuncQuantileExact = AggregateFunctionQuantile<Value, QuantileExact<Value>, NameQuantileExact, false, void, false>;
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template <typename Value, bool _> using FuncQuantilesExact = AggregateFunctionQuantile<Value, QuantileExact<Value>, NameQuantilesExact, false, void, true>;
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template <typename Value, bool _> using FuncQuantileExactExclusive = AggregateFunctionQuantile<Value, QuantileExactExclusive<Value>, NameQuantileExactExclusive, false, Float64, false>;
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template <typename Value, bool _> using FuncQuantilesExactExclusive = AggregateFunctionQuantile<Value, QuantileExactExclusive<Value>, NameQuantilesExactExclusive, false, Float64, true>;
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template <typename Value, bool _> using FuncQuantileExactInclusive = AggregateFunctionQuantile<Value, QuantileExactInclusive<Value>, NameQuantileExactInclusive, false, Float64, false>;
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template <typename Value, bool _> using FuncQuantilesExactInclusive = AggregateFunctionQuantile<Value, QuantileExactInclusive<Value>, NameQuantilesExactInclusive, false, Float64, true>;
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template <typename Value, bool _> using FuncQuantileExactWeighted = AggregateFunctionQuantile<Value, QuantileExactWeighted<Value>, NameQuantileExactWeighted, true, void, false>;
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template <typename Value, bool _> using FuncQuantilesExactWeighted = AggregateFunctionQuantile<Value, QuantileExactWeighted<Value>, NameQuantilesExactWeighted, true, void, true>;
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template <typename Value, bool _> using FuncQuantileTiming = AggregateFunctionQuantile<Value, QuantileTiming<Value>, NameQuantileTiming, false, Float32, false>;
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template <typename Value, bool _> using FuncQuantilesTiming = AggregateFunctionQuantile<Value, QuantileTiming<Value>, NameQuantilesTiming, false, Float32, true>;
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template <typename Value, bool _> using FuncQuantileTimingWeighted = AggregateFunctionQuantile<Value, QuantileTiming<Value>, NameQuantileTimingWeighted, true, Float32, false>;
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template <typename Value, bool _> using FuncQuantilesTimingWeighted = AggregateFunctionQuantile<Value, QuantileTiming<Value>, NameQuantilesTimingWeighted, true, Float32, true>;
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template <typename Value, bool float_return> using FuncQuantileTDigest = AggregateFunctionQuantile<Value, QuantileTDigest<Value>, NameQuantileTDigest, false, std::conditional_t<float_return, Float32, void>, false>;
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template <typename Value, bool float_return> using FuncQuantilesTDigest = AggregateFunctionQuantile<Value, QuantileTDigest<Value>, NameQuantilesTDigest, false, std::conditional_t<float_return, Float32, void>, true>;
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template <typename Value, bool float_return> using FuncQuantileTDigestWeighted = AggregateFunctionQuantile<Value, QuantileTDigest<Value>, NameQuantileTDigestWeighted, true, std::conditional_t<float_return, Float32, void>, false>;
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template <typename Value, bool float_return> using FuncQuantilesTDigestWeighted = AggregateFunctionQuantile<Value, QuantileTDigest<Value>, NameQuantilesTDigestWeighted, true, std::conditional_t<float_return, Float32, void>, true>;
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template <template <typename, bool> class Function>
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static constexpr bool supportDecimal()
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{
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return std::is_same_v<Function<Float32, false>, FuncQuantile<Float32, false>> ||
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std::is_same_v<Function<Float32, false>, FuncQuantiles<Float32, false>> ||
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std::is_same_v<Function<Float32, false>, FuncQuantileExact<Float32, false>> ||
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std::is_same_v<Function<Float32, false>, FuncQuantilesExact<Float32, false>> ||
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std::is_same_v<Function<Float32, false>, FuncQuantileExactWeighted<Float32, false>> ||
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std::is_same_v<Function<Float32, false>, FuncQuantilesExactWeighted<Float32, false>>;
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}
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template <template <typename, bool> class Function>
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AggregateFunctionPtr createAggregateFunctionQuantile(const std::string & name, const DataTypes & argument_types, const Array & params)
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{
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/// Second argument type check doesn't depend on the type of the first one.
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Function<void, true>::assertSecondArg(argument_types);
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const DataTypePtr & argument_type = argument_types[0];
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WhichDataType which(argument_type);
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#define DISPATCH(TYPE) \
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if (which.idx == TypeIndex::TYPE) return std::make_shared<Function<TYPE, true>>(argument_type, params);
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FOR_NUMERIC_TYPES(DISPATCH)
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#undef DISPATCH
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if (which.idx == TypeIndex::Date) return std::make_shared<Function<DataTypeDate::FieldType, false>>(argument_type, params);
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if (which.idx == TypeIndex::DateTime) return std::make_shared<Function<DataTypeDateTime::FieldType, false>>(argument_type, params);
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if constexpr (supportDecimal<Function>())
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{
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if (which.idx == TypeIndex::Decimal32) return std::make_shared<Function<Decimal32, false>>(argument_type, params);
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if (which.idx == TypeIndex::Decimal64) return std::make_shared<Function<Decimal64, false>>(argument_type, params);
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if (which.idx == TypeIndex::Decimal128) return std::make_shared<Function<Decimal128, false>>(argument_type, params);
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}
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throw Exception("Illegal type " + argument_type->getName() + " of argument for aggregate function " + name,
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ErrorCodes::ILLEGAL_TYPE_OF_ARGUMENT);
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}
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}
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void registerAggregateFunctionsQuantile(AggregateFunctionFactory & factory)
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{
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factory.registerFunction(NameQuantile::name, createAggregateFunctionQuantile<FuncQuantile>);
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factory.registerFunction(NameQuantiles::name, createAggregateFunctionQuantile<FuncQuantiles>);
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factory.registerFunction(NameQuantileDeterministic::name, createAggregateFunctionQuantile<FuncQuantileDeterministic>);
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factory.registerFunction(NameQuantilesDeterministic::name, createAggregateFunctionQuantile<FuncQuantilesDeterministic>);
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factory.registerFunction(NameQuantileExact::name, createAggregateFunctionQuantile<FuncQuantileExact>);
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factory.registerFunction(NameQuantilesExact::name, createAggregateFunctionQuantile<FuncQuantilesExact>);
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factory.registerFunction(NameQuantileExactExclusive::name, createAggregateFunctionQuantile<FuncQuantileExactExclusive>);
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factory.registerFunction(NameQuantilesExactExclusive::name, createAggregateFunctionQuantile<FuncQuantilesExactExclusive>);
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factory.registerFunction(NameQuantileExactInclusive::name, createAggregateFunctionQuantile<FuncQuantileExactInclusive>);
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factory.registerFunction(NameQuantilesExactInclusive::name, createAggregateFunctionQuantile<FuncQuantilesExactInclusive>);
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factory.registerFunction(NameQuantileExactWeighted::name, createAggregateFunctionQuantile<FuncQuantileExactWeighted>);
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factory.registerFunction(NameQuantilesExactWeighted::name, createAggregateFunctionQuantile<FuncQuantilesExactWeighted>);
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factory.registerFunction(NameQuantileTiming::name, createAggregateFunctionQuantile<FuncQuantileTiming>);
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factory.registerFunction(NameQuantilesTiming::name, createAggregateFunctionQuantile<FuncQuantilesTiming>);
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factory.registerFunction(NameQuantileTimingWeighted::name, createAggregateFunctionQuantile<FuncQuantileTimingWeighted>);
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factory.registerFunction(NameQuantilesTimingWeighted::name, createAggregateFunctionQuantile<FuncQuantilesTimingWeighted>);
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factory.registerFunction(NameQuantileTDigest::name, createAggregateFunctionQuantile<FuncQuantileTDigest>);
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factory.registerFunction(NameQuantilesTDigest::name, createAggregateFunctionQuantile<FuncQuantilesTDigest>);
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factory.registerFunction(NameQuantileTDigestWeighted::name, createAggregateFunctionQuantile<FuncQuantileTDigestWeighted>);
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factory.registerFunction(NameQuantilesTDigestWeighted::name, createAggregateFunctionQuantile<FuncQuantilesTDigestWeighted>);
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/// 'median' is an alias for 'quantile'
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factory.registerAlias("median", NameQuantile::name);
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factory.registerAlias("medianDeterministic", NameQuantileDeterministic::name);
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factory.registerAlias("medianExact", NameQuantileExact::name);
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factory.registerAlias("medianExactWeighted", NameQuantileExactWeighted::name);
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factory.registerAlias("medianTiming", NameQuantileTiming::name);
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factory.registerAlias("medianTimingWeighted", NameQuantileTimingWeighted::name);
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factory.registerAlias("medianTDigest", NameQuantileTDigest::name);
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factory.registerAlias("medianTDigestWeighted", NameQuantileTDigestWeighted::name);
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}
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}
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