1#include <AggregateFunctions/AggregateFunctionFactory.h>
2#include <AggregateFunctions/AggregateFunctionWindowFunnel.h>
3#include <AggregateFunctions/Helpers.h>
4#include <AggregateFunctions/FactoryHelpers.h>
5#include <DataTypes/DataTypeDate.h>
6#include <DataTypes/DataTypeDateTime.h>
7
8#include <ext/range.h>
9#include "registerAggregateFunctions.h"
10
11
12namespace DB
13{
14
15namespace
16{
17
18template <template <typename> class Data>
19AggregateFunctionPtr createAggregateFunctionWindowFunnel(const std::string & name, const DataTypes & arguments, const Array & params)
20{
21 if (params.size() < 1)
22 throw Exception{"Aggregate function " + name + " requires at least one parameter: <window>, [option, [option, ...]]", ErrorCodes::NUMBER_OF_ARGUMENTS_DOESNT_MATCH};
23
24 if (arguments.size() < 2)
25 throw Exception("Aggregate function " + name + " requires one timestamp argument and at least one event condition.", ErrorCodes::NUMBER_OF_ARGUMENTS_DOESNT_MATCH);
26
27 if (arguments.size() > max_events + 1)
28 throw Exception("Too many event arguments for aggregate function " + name, ErrorCodes::NUMBER_OF_ARGUMENTS_DOESNT_MATCH);
29
30 for (const auto i : ext::range(1, arguments.size()))
31 {
32 auto cond_arg = arguments[i].get();
33 if (!isUInt8(cond_arg))
34 throw Exception{"Illegal type " + cond_arg->getName() + " of argument " + toString(i + 1) + " of aggregate function "
35 + name + ", must be UInt8", ErrorCodes::ILLEGAL_TYPE_OF_ARGUMENT};
36 }
37
38 AggregateFunctionPtr res(createWithUnsignedIntegerType<AggregateFunctionWindowFunnel, Data>(*arguments[0], arguments, params));
39 WhichDataType which(arguments.front().get());
40 if (res)
41 return res;
42 else if (which.isDate())
43 return std::make_shared<AggregateFunctionWindowFunnel<DataTypeDate::FieldType, Data<DataTypeDate::FieldType>>>(arguments, params);
44 else if (which.isDateTime())
45 return std::make_shared<AggregateFunctionWindowFunnel<DataTypeDateTime::FieldType, Data<DataTypeDateTime::FieldType>>>(arguments, params);
46
47 throw Exception{"Illegal type " + arguments.front().get()->getName()
48 + " of first argument of aggregate function " + name + ", must be Unsigned Number, Date, DateTime",
49 ErrorCodes::ILLEGAL_TYPE_OF_ARGUMENT};
50}
51
52}
53
54void registerAggregateFunctionWindowFunnel(AggregateFunctionFactory & factory)
55{
56 factory.registerFunction("windowFunnel", createAggregateFunctionWindowFunnel<AggregateFunctionWindowFunnelData>, AggregateFunctionFactory::CaseInsensitive);
57}
58
59}
60