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65 lines
2.6 KiB
C++
65 lines
2.6 KiB
C++
#include <AggregateFunctions/AggregateFunctionFactory.h>
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#include <AggregateFunctions/AggregateFunctionWindowFunnel.h>
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#include <AggregateFunctions/Helpers.h>
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#include <AggregateFunctions/FactoryHelpers.h>
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#include <DataTypes/DataTypeDate.h>
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#include <DataTypes/DataTypeDateTime.h>
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#include <ext/range.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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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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template <template <typename> class Data>
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AggregateFunctionPtr createAggregateFunctionWindowFunnel(const std::string & name, const DataTypes & arguments, const Array & params)
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{
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if (params.empty())
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throw Exception{"Aggregate function " + name + " requires at least one parameter: <window>, [option, [option, ...]]", ErrorCodes::NUMBER_OF_ARGUMENTS_DOESNT_MATCH};
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if (arguments.size() < 2)
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throw Exception("Aggregate function " + name + " requires one timestamp argument and at least one event condition.", ErrorCodes::NUMBER_OF_ARGUMENTS_DOESNT_MATCH);
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if (arguments.size() > max_events + 1)
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throw Exception("Too many event arguments for aggregate function " + name, ErrorCodes::NUMBER_OF_ARGUMENTS_DOESNT_MATCH);
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for (const auto i : ext::range(1, arguments.size()))
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{
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auto cond_arg = arguments[i].get();
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if (!isUInt8(cond_arg))
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throw Exception{"Illegal type " + cond_arg->getName() + " of argument " + toString(i + 1) + " of aggregate function "
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+ name + ", must be UInt8", ErrorCodes::ILLEGAL_TYPE_OF_ARGUMENT};
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}
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AggregateFunctionPtr res(createWithUnsignedIntegerType<AggregateFunctionWindowFunnel, Data>(*arguments[0], arguments, params));
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WhichDataType which(arguments.front().get());
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if (res)
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return res;
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else if (which.isDate())
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return std::make_shared<AggregateFunctionWindowFunnel<DataTypeDate::FieldType, Data<DataTypeDate::FieldType>>>(arguments, params);
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else if (which.isDateTime())
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return std::make_shared<AggregateFunctionWindowFunnel<DataTypeDateTime::FieldType, Data<DataTypeDateTime::FieldType>>>(arguments, params);
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throw Exception{"Illegal type " + arguments.front().get()->getName()
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+ " of first argument of aggregate function " + name + ", must be Unsigned Number, Date, DateTime",
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ErrorCodes::ILLEGAL_TYPE_OF_ARGUMENT};
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}
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}
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void registerAggregateFunctionWindowFunnel(AggregateFunctionFactory & factory)
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{
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factory.registerFunction("windowFunnel", createAggregateFunctionWindowFunnel<AggregateFunctionWindowFunnelData>, AggregateFunctionFactory::CaseInsensitive);
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}
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}
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