ClickHouse/dbms/src/Functions/empty.cpp

23 lines
434 B
C++

#include <DataTypes/DataTypeString.h>
#include <Functions/FunctionFactory.h>
#include <Functions/FunctionStringOrArrayToT.h>
#include <Functions/EmptyImpl.h>
namespace DB
{
struct NameEmpty
{
static constexpr auto name = "empty";
};
using FunctionEmpty = FunctionStringOrArrayToT<EmptyImpl<false>, NameEmpty, UInt8>;
void registerFunctionEmpty(FunctionFactory & factory)
{
factory.registerFunction<FunctionEmpty>();
}
}