2018-11-26 16:20:40 +00:00
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#include <Functions/FunctionFactory.h>
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#include <Functions/FunctionUnaryArithmetic.h>
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namespace DB
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{
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template <typename A>
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struct RoundDurationImpl
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{
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using ResultType = UInt16;
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2020-02-14 08:17:32 +00:00
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static constexpr const bool allow_fixed_string = false;
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2018-11-26 16:20:40 +00:00
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static inline ResultType apply(A x)
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{
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return x < 1 ? 0
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: (x < 10 ? 1
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: (x < 30 ? 10
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: (x < 60 ? 30
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: (x < 120 ? 60
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: (x < 180 ? 120
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: (x < 240 ? 180
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: (x < 300 ? 240
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: (x < 600 ? 300
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: (x < 1200 ? 600
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: (x < 1800 ? 1200
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: (x < 3600 ? 1800
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: (x < 7200 ? 3600
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: (x < 18000 ? 7200
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: (x < 36000 ? 18000
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: 36000))))))))))))));
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}
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#if USE_EMBEDDED_COMPILER
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static constexpr bool compilable = false;
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#endif
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};
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struct NameRoundDuration { static constexpr auto name = "roundDuration"; };
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using FunctionRoundDuration = FunctionUnaryArithmetic<RoundDurationImpl, NameRoundDuration, false>;
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template <> struct FunctionUnaryArithmeticMonotonicity<NameRoundDuration> : PositiveMonotonicity {};
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void registerFunctionRoundDuration(FunctionFactory & factory)
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{
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factory.registerFunction<FunctionRoundDuration>();
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}
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}
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