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71 lines
3.0 KiB
C++
71 lines
3.0 KiB
C++
#include <AggregateFunctions/AggregateFunctionFactory.h>
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#include <AggregateFunctions/Helpers.h>
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#include <AggregateFunctions/FactoryHelpers.h>
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#include <DataTypes/DataTypeAggregateFunction.h>
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#include "registerAggregateFunctions.h"
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// TODO include this last because of a broken roaring header. See the comment
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// inside.
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#include <AggregateFunctions/AggregateFunctionGroupBitmap.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 <template <typename> class Data>
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AggregateFunctionPtr createAggregateFunctionBitmap(const std::string & name, const DataTypes & argument_types, const Array & parameters)
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{
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assertNoParameters(name, parameters);
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assertUnary(name, argument_types);
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if (!argument_types[0]->canBeUsedInBitOperations())
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throw Exception("The type " + argument_types[0]->getName() + " of argument for aggregate function " + name
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+ " is illegal, because it cannot be used in Bitmap operations",
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ErrorCodes::ILLEGAL_TYPE_OF_ARGUMENT);
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AggregateFunctionPtr res(createWithUnsignedIntegerType<AggregateFunctionBitmap, Data>(*argument_types[0], argument_types[0]));
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if (!res)
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throw Exception("Illegal type " + argument_types[0]->getName() + " of argument for aggregate function " + name, ErrorCodes::ILLEGAL_TYPE_OF_ARGUMENT);
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return res;
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}
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template <template <typename, typename> class AggregateFunctionTemplate>
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AggregateFunctionPtr createAggregateFunctionBitmapL2(const std::string & name, const DataTypes & argument_types, const Array & parameters)
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{
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assertNoParameters(name, parameters);
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assertUnary(name, argument_types);
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DataTypePtr argument_type_ptr = argument_types[0];
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WhichDataType which(*argument_type_ptr);
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if (which.idx != TypeIndex::AggregateFunction)
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throw Exception("Illegal type " + argument_types[0]->getName() + " of argument for aggregate function " + name, ErrorCodes::ILLEGAL_TYPE_OF_ARGUMENT);
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const DataTypeAggregateFunction& datatype_aggfunc = dynamic_cast<const DataTypeAggregateFunction&>(*argument_type_ptr);
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AggregateFunctionPtr aggfunc = datatype_aggfunc.getFunction();
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argument_type_ptr = aggfunc->getArgumentTypes()[0];
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AggregateFunctionPtr res(createWithUnsignedIntegerType<AggregateFunctionTemplate, AggregateFunctionGroupBitmapData>(*argument_type_ptr, argument_type_ptr));
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if (!res)
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throw Exception("Illegal type " + argument_types[0]->getName() + " of argument for aggregate function " + name, ErrorCodes::ILLEGAL_TYPE_OF_ARGUMENT);
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return res;
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}
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}
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void registerAggregateFunctionsBitmap(AggregateFunctionFactory & factory)
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{
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factory.registerFunction("groupBitmap", createAggregateFunctionBitmap<AggregateFunctionGroupBitmapData>);
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factory.registerFunction("groupBitmapAnd", createAggregateFunctionBitmapL2<AggregateFunctionBitmapL2And>);
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factory.registerFunction("groupBitmapOr", createAggregateFunctionBitmapL2<AggregateFunctionBitmapL2Or>);
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factory.registerFunction("groupBitmapXor", createAggregateFunctionBitmapL2<AggregateFunctionBitmapL2Xor>);
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}
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}
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