1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
|
#include <AggregateFunctions/AggregateFunctionFactory.h>
#include <AggregateFunctions/AggregateFunctionBitwise.h>
#include <AggregateFunctions/Helpers.h>
#include <AggregateFunctions/FactoryHelpers.h>
namespace DB
{
struct Settings;
namespace ErrorCodes
{
extern const int ILLEGAL_TYPE_OF_ARGUMENT;
}
namespace
{
template <template <typename> class Data>
AggregateFunctionPtr createAggregateFunctionBitwise(const std::string & name, const DataTypes & argument_types, const Array & parameters, const Settings *)
{
assertNoParameters(name, parameters);
assertUnary(name, argument_types);
if (!argument_types[0]->canBeUsedInBitOperations())
throw Exception(ErrorCodes::ILLEGAL_TYPE_OF_ARGUMENT, "The type {} of argument for aggregate function {} "
"is illegal, because it cannot be used in bitwise operations",
argument_types[0]->getName(), name);
AggregateFunctionPtr res(createWithIntegerType<AggregateFunctionBitwise, Data>(*argument_types[0], argument_types[0]));
if (!res)
throw Exception(ErrorCodes::ILLEGAL_TYPE_OF_ARGUMENT,
"Illegal type {} of argument for aggregate function {}", argument_types[0]->getName(), name);
return res;
}
}
void registerAggregateFunctionsBitwise(AggregateFunctionFactory & factory)
{
factory.registerFunction("groupBitOr", createAggregateFunctionBitwise<AggregateFunctionGroupBitOrData>);
factory.registerFunction("groupBitAnd", createAggregateFunctionBitwise<AggregateFunctionGroupBitAndData>);
factory.registerFunction("groupBitXor", createAggregateFunctionBitwise<AggregateFunctionGroupBitXorData>);
/// Aliases for compatibility with MySQL.
factory.registerAlias("BIT_OR", "groupBitOr", AggregateFunctionFactory::CaseInsensitive);
factory.registerAlias("BIT_AND", "groupBitAnd", AggregateFunctionFactory::CaseInsensitive);
factory.registerAlias("BIT_XOR", "groupBitXor", AggregateFunctionFactory::CaseInsensitive);
}
}
|
