ClickHouse/src/Functions/tan.cpp

#include <Functions/FunctionMathUnary.h>
#include <Functions/FunctionFactory.h>

namespace DB
{
namespace
{

struct TanName { static constexpr auto name = "tan"; };
using FunctionTan = FunctionMathUnary<UnaryFunctionVectorized<TanName, tan>>;

}

void registerFunctionTan(FunctionFactory & factory)
{
    factory.registerFunction<FunctionTan>(FunctionFactory::CaseInsensitive);
}

}