ClickHouse/src/Functions/empty.cpp

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