namespace DB { class FunctionFactory; void registerFunctionE(FunctionFactory & factory); void registerFunctionPi(FunctionFactory & factory); void registerFunctionExp(FunctionFactory & factory); void registerFunctionLog(FunctionFactory & factory); void registerFunctionExp2(FunctionFactory & factory); void registerFunctionLog2(FunctionFactory & factory); void registerFunctionExp10(FunctionFactory & factory); void registerFunctionLog10(FunctionFactory & factory); void registerFunctionSqrt(FunctionFactory & factory); void registerFunctionCbrt(FunctionFactory & factory); void registerFunctionErf(FunctionFactory & factory); void registerFunctionErfc(FunctionFactory & factory); void registerFunctionLGamma(FunctionFactory & factory); void registerFunctionTGamma(FunctionFactory & factory); void registerFunctionSin(FunctionFactory & factory); void registerFunctionCos(FunctionFactory & factory); void registerFunctionTan(FunctionFactory & factory); void registerFunctionAsin(FunctionFactory & factory); void registerFunctionAcos(FunctionFactory & factory); void registerFunctionAtan(FunctionFactory & factory); void registerFunctionPow(FunctionFactory & factory); void registerFunctionsMath(FunctionFactory & factory) { registerFunctionE(factory); registerFunctionPi(factory); registerFunctionExp(factory); registerFunctionLog(factory); registerFunctionExp2(factory); registerFunctionLog2(factory); registerFunctionExp10(factory); registerFunctionLog10(factory); registerFunctionSqrt(factory); registerFunctionCbrt(factory); registerFunctionErf(factory); registerFunctionErfc(factory); registerFunctionLGamma(factory); registerFunctionTGamma(factory); registerFunctionSin(factory); registerFunctionCos(factory); registerFunctionTan(factory); registerFunctionAsin(factory); registerFunctionAcos(factory); registerFunctionAtan(factory); registerFunctionPow(factory); } }