mirror of
https://github.com/ClickHouse/ClickHouse.git
synced 2024-11-18 05:32:52 +00:00
40 lines
920 B
C++
40 lines
920 B
C++
#include <Functions/FunctionFactory.h>
|
|
#include <Functions/FunctionUnaryArithmetic.h>
|
|
|
|
namespace DB
|
|
{
|
|
|
|
template <typename A>
|
|
struct RoundAgeImpl
|
|
{
|
|
using ResultType = UInt8;
|
|
static constexpr const bool allow_fixed_string = false;
|
|
|
|
static inline ResultType apply(A x)
|
|
{
|
|
return x < 1 ? 0
|
|
: (x < 18 ? 17
|
|
: (x < 25 ? 18
|
|
: (x < 35 ? 25
|
|
: (x < 45 ? 35
|
|
: (x < 55 ? 45
|
|
: 55)))));
|
|
}
|
|
|
|
#if USE_EMBEDDED_COMPILER
|
|
static constexpr bool compilable = false;
|
|
#endif
|
|
};
|
|
|
|
struct NameRoundAge { static constexpr auto name = "roundAge"; };
|
|
using FunctionRoundAge = FunctionUnaryArithmetic<RoundAgeImpl, NameRoundAge, false>;
|
|
|
|
template <> struct FunctionUnaryArithmeticMonotonicity<NameRoundAge> : PositiveMonotonicity {};
|
|
|
|
void registerFunctionRoundAge(FunctionFactory & factory)
|
|
{
|
|
factory.registerFunction<FunctionRoundAge>();
|
|
}
|
|
|
|
}
|