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#include <Functions/FunctionFactory.h>
#include <Functions/FunctionUnaryArithmetic.h>
namespace DB
{
namespace
{
template <typename A>
struct RoundDurationImpl
{
using ResultType = UInt16;
static constexpr bool allow_string_or_fixed_string = false;
static inline ResultType apply(A x)
{
return x < 1 ? 0
: (x < 10 ? 1
: (x < 30 ? 10
: (x < 60 ? 30
: (x < 120 ? 60
: (x < 180 ? 120
: (x < 240 ? 180
: (x < 300 ? 240
: (x < 600 ? 300
: (x < 1200 ? 600
: (x < 1800 ? 1200
: (x < 3600 ? 1800
: (x < 7200 ? 3600
: (x < 18000 ? 7200
: (x < 36000 ? 18000
: 36000))))))))))))));
}
#if USE_EMBEDDED_COMPILER
static constexpr bool compilable = false;
#endif
};
struct NameRoundDuration { static constexpr auto name = "roundDuration"; };
using FunctionRoundDuration = FunctionUnaryArithmetic<RoundDurationImpl, NameRoundDuration, false>;
}
template <> struct FunctionUnaryArithmeticMonotonicity<NameRoundDuration> : PositiveMonotonicity {};
REGISTER_FUNCTION(RoundDuration)
{
factory.registerFunction<FunctionRoundDuration>();
}
}
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