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DateTimeTransforms.h
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2520 lines (2256 loc) · 86.1 KB
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#pragma once
#include <base/arithmeticOverflow.h>
#include <base/types.h>
#include <Core/DecimalFunctions.h>
#include <Common/Exception.h>
#include <Common/DateLUTImpl.h>
#include <Common/DateLUT.h>
#include <Common/IntervalKind.h>
#include <base/Decimal.h>
#include <Columns/ColumnNullable.h>
#include <Columns/ColumnsNumber.h>
#include <Columns/ColumnVector.h>
#include <Columns/ColumnDecimal.h>
#include <Formats/FormatSettings.h>
#include <Functions/FieldInterval.h>
#include <Functions/FunctionHelpers.h>
#include <Functions/IFunction.h>
#include <Functions/extractTimeZoneFromFunctionArguments.h>
#include <DataTypes/DataTypeDateTime.h>
#include <DataTypes/DataTypeDateTime64.h>
#include <DataTypes/DataTypeTime.h>
#include <DataTypes/DataTypeTime64.h>
namespace DB
{
static constexpr auto millisecond_multiplier = 1'000;
static constexpr auto microsecond_multiplier = 1'000'000;
static constexpr auto nanosecond_multiplier = 1'000'000'000;
static constexpr FormatSettings::DateTimeOverflowBehavior default_date_time_overflow_behavior = FormatSettings::DateTimeOverflowBehavior::Ignore;
namespace ErrorCodes
{
extern const int CANNOT_CONVERT_TYPE;
extern const int DECIMAL_OVERFLOW;
extern const int ILLEGAL_COLUMN;
extern const int ILLEGAL_TYPE_OF_ARGUMENT;
extern const int VALUE_IS_OUT_OF_RANGE_OF_DATA_TYPE;
}
/** Transformations.
* Represents two functions - from datetime (UInt32) and from date (UInt16).
*
* Also, the "factor transformation" F is defined for the T transformation.
* This is a transformation of F such that its value identifies the region of monotonicity for T
* (for a fixed value of F, the transformation T is monotonic).
*
* Or, figuratively, if T is similar to taking the remainder of division, then F is similar to division.
*
* Example: for transformation T "get the day number in the month" (2015-02-03 -> 3),
* factor-transformation F is "round to the nearest month" (2015-02-03 -> 2015-02-01).
*/
constexpr time_t MAX_DATETIME64_TIMESTAMP = 10413791999LL; // 2299-12-31 23:59:59 UTC
constexpr time_t MIN_DATETIME64_TIMESTAMP = -2208988800LL; // 1900-01-01 00:00:00 UTC
constexpr time_t MAX_DATETIME_TIMESTAMP = 0xFFFFFFFF;
constexpr time_t MAX_DATE_TIMESTAMP = 5662310399; // 2149-06-06 23:59:59 UTC
constexpr time_t MAX_TIME_TIMESTAMP = 3599999; // 999:59:59
constexpr time_t MAX_DATETIME_DAY_NUM = 49709; // 2106-02-06 America/Hermosillo
[[noreturn]] void throwDateIsNotSupported(const char * name);
[[noreturn]] void throwDate32IsNotSupported(const char * name);
[[noreturn]] void throwDateTimeIsNotSupported(const char * name);
[[noreturn]] void throwTimeIsNotSupported(const char * name);
//github.com/ This factor transformation will say that the function is monotone everywhere.
struct ZeroTransform
{
static constexpr auto name = "Zero";
static UInt16 execute(Int64, const DateLUTImpl &) { return 0; }
static UInt16 execute(UInt32, const DateLUTImpl &) { return 0; }
static UInt16 execute(Int32, const DateLUTImpl &) { return 0; }
static UInt16 execute(UInt16, const DateLUTImpl &) { return 0; }
};
template <FormatSettings::DateTimeOverflowBehavior date_time_overflow_behavior = default_date_time_overflow_behavior>
struct ToDateImpl
{
static constexpr auto name = "toDate";
static UInt16 execute(const DecimalUtils::DecimalComponents<DateTime64> & t, const DateLUTImpl & time_zone)
{
return execute(t.whole, time_zone);
}
static UInt16 execute(const DecimalUtils::DecimalComponents<Time64> &, const DateLUTImpl &)
{
throwTimeIsNotSupported(name);
}
static UInt16 execute(Int64 t, const DateLUTImpl & time_zone)
{
if constexpr (date_time_overflow_behavior == FormatSettings::DateTimeOverflowBehavior::Saturate)
{
if (t < 0)
t = 0;
else if (t > MAX_DATE_TIMESTAMP)
t = MAX_DATE_TIMESTAMP;
}
else if constexpr (date_time_overflow_behavior == FormatSettings::DateTimeOverflowBehavior::Throw)
{
if (t < 0 || t > MAX_DATE_TIMESTAMP) [[unlikely]]
throw Exception(ErrorCodes::VALUE_IS_OUT_OF_RANGE_OF_DATA_TYPE, "Value {} is out of bounds of type Date", t);
}
return static_cast<UInt16>(time_zone.toDayNum(t));
}
static UInt16 execute(UInt32 t, const DateLUTImpl & time_zone)
{
return UInt16(time_zone.toDayNum(t)); //github.com/ never causes overflow by design
}
static UInt16 execute(Int32 t, const DateLUTImpl &)
{
if constexpr (date_time_overflow_behavior == FormatSettings::DateTimeOverflowBehavior::Saturate)
{
if (t < 0)
return UInt16(0);
if (t > DATE_LUT_MAX_DAY_NUM)
return UInt16(DATE_LUT_MAX_DAY_NUM);
}
else if constexpr (date_time_overflow_behavior == FormatSettings::DateTimeOverflowBehavior::Throw)
{
if (t < 0 || t > DATE_LUT_MAX_DAY_NUM) [[unlikely]]
throw Exception(ErrorCodes::VALUE_IS_OUT_OF_RANGE_OF_DATA_TYPE, "Value {} is out of bounds of type Date", t);
}
return static_cast<UInt16>(t);
}
static UInt16 execute(UInt16 d, const DateLUTImpl &)
{
return d;
}
static DecimalUtils::DecimalComponents<DateTime64> executeExtendedResult(const DecimalUtils::DecimalComponents<DateTime64> & t, const DateLUTImpl & time_zone)
{
return {time_zone.toDayNum(t.whole), 0};
}
static DecimalUtils::DecimalComponents<Time64> executeExtendedResult(const DecimalUtils::DecimalComponents<Time64> &, const DateLUTImpl &)
{
throwTimeIsNotSupported(name);
}
using FactorTransform = ZeroTransform;
};
struct ToDate32Impl
{
static constexpr auto name = "toDate32";
static Int32 execute(Int64 t, const DateLUTImpl & time_zone)
{
return Int32(time_zone.toDayNum(t));
}
static Int32 execute(UInt32 t, const DateLUTImpl & time_zone)
{
//github.com/ Don't saturate.
return Int32(time_zone.toDayNum<Int64>(t));
}
static Int32 execute(Int32 d, const DateLUTImpl &)
{
return d;
}
static Int32 execute(UInt16 d, const DateLUTImpl &)
{
return d;
}
using FactorTransform = ZeroTransform;
};
struct ToStartOfDayImpl
{
static constexpr auto name = "toStartOfDay";
static UInt32 execute(const DecimalUtils::DecimalComponents<DateTime64> & t, const DateLUTImpl & time_zone)
{
return static_cast<UInt32>(time_zone.toDate(static_cast<time_t>(t.whole)));
}
static UInt32 execute(const DecimalUtils::DecimalComponents<Time64> &, const DateLUTImpl &)
{
throwTimeIsNotSupported(name);
}
static UInt32 execute(UInt32 t, const DateLUTImpl & time_zone)
{
return static_cast<UInt32>(time_zone.toDate(t));
}
static UInt32 execute(Int32 d, const DateLUTImpl & time_zone)
{
return static_cast<UInt32>(time_zone.toDate(ExtendedDayNum(d)));
}
static UInt32 execute(UInt16 d, const DateLUTImpl & time_zone)
{
return static_cast<UInt32>(time_zone.toDate(DayNum(d)));
}
static DecimalUtils::DecimalComponents<DateTime64> executeExtendedResult(const DecimalUtils::DecimalComponents<DateTime64> & t, const DateLUTImpl & time_zone)
{
return {time_zone.toDate(t.whole), 0};
}
static DecimalUtils::DecimalComponents<Time64> executeExtendedResult(const DecimalUtils::DecimalComponents<Time64> &, const DateLUTImpl &)
{
throwTimeIsNotSupported(name);
}
static Int64 executeExtendedResult(Int32 d, const DateLUTImpl & time_zone)
{
return common::mulIgnoreOverflow(time_zone.fromDayNum(ExtendedDayNum(d)), DecimalUtils::scaleMultiplier<DateTime64>(DataTypeDateTime64::default_scale));
}
using FactorTransform = ZeroTransform;
};
struct ToMondayImpl
{
static constexpr auto name = "toMonday";
static UInt16 execute(Int64 t, const DateLUTImpl & time_zone)
{
//return time_zone.toFirstDayNumOfWeek(time_zone.toDayNum(t));
return time_zone.toFirstDayNumOfWeek(t);
}
static UInt16 execute(UInt32 t, const DateLUTImpl & time_zone)
{
//return time_zone.toFirstDayNumOfWeek(time_zone.toDayNum(t));
return time_zone.toFirstDayNumOfWeek(t);
}
static UInt16 execute(Int32 d, const DateLUTImpl & time_zone)
{
return time_zone.toFirstDayNumOfWeek(ExtendedDayNum(d));
}
static UInt16 execute(UInt16 d, const DateLUTImpl & time_zone)
{
return time_zone.toFirstDayNumOfWeek(DayNum(d));
}
static Int64 executeExtendedResult(Int64 t, const DateLUTImpl & time_zone)
{
return time_zone.toFirstDayNumOfWeek(time_zone.toDayNum(t));
}
static Int32 executeExtendedResult(Int32 d, const DateLUTImpl & time_zone)
{
return time_zone.toFirstDayNumOfWeek(ExtendedDayNum(d));
}
using FactorTransform = ZeroTransform;
};
struct ToStartOfMonthImpl
{
static constexpr auto name = "toStartOfMonth";
static UInt16 execute(Int64 t, const DateLUTImpl & time_zone)
{
return time_zone.toFirstDayNumOfMonth(time_zone.toDayNum(t));
}
static UInt16 execute(UInt32 t, const DateLUTImpl & time_zone)
{
return time_zone.toFirstDayNumOfMonth(time_zone.toDayNum(t));
}
static UInt16 execute(Int32 d, const DateLUTImpl & time_zone)
{
return time_zone.toFirstDayNumOfMonth(ExtendedDayNum(d));
}
static UInt16 execute(UInt16 d, const DateLUTImpl & time_zone)
{
return time_zone.toFirstDayNumOfMonth(DayNum(d));
}
static Int64 executeExtendedResult(Int64 t, const DateLUTImpl & time_zone)
{
return time_zone.toFirstDayNumOfMonth(time_zone.toDayNum(t));
}
static Int32 executeExtendedResult(Int32 d, const DateLUTImpl & time_zone)
{
return time_zone.toFirstDayNumOfMonth(ExtendedDayNum(d));
}
using FactorTransform = ZeroTransform;
};
struct ToLastDayOfMonthImpl
{
static constexpr auto name = "toLastDayOfMonth";
static UInt16 execute(Int64 t, const DateLUTImpl & time_zone)
{
return time_zone.toLastDayNumOfMonth(time_zone.toDayNum(t));
}
static UInt16 execute(UInt32 t, const DateLUTImpl & time_zone)
{
return time_zone.toLastDayNumOfMonth(time_zone.toDayNum(t));
}
static UInt16 execute(Int32 d, const DateLUTImpl & time_zone)
{
return time_zone.toLastDayNumOfMonth(ExtendedDayNum(d));
}
static UInt16 execute(UInt16 d, const DateLUTImpl & time_zone)
{
return time_zone.toLastDayNumOfMonth(DayNum(d));
}
static Int64 executeExtendedResult(Int64 t, const DateLUTImpl & time_zone)
{
return time_zone.toLastDayNumOfMonth(time_zone.toDayNum(t));
}
static Int32 executeExtendedResult(Int32 d, const DateLUTImpl & time_zone)
{
return time_zone.toLastDayNumOfMonth(ExtendedDayNum(d));
}
using FactorTransform = ZeroTransform;
};
struct ToStartOfQuarterImpl
{
static constexpr auto name = "toStartOfQuarter";
static UInt16 execute(Int64 t, const DateLUTImpl & time_zone)
{
return time_zone.toFirstDayNumOfQuarter(time_zone.toDayNum(t));
}
static UInt16 execute(UInt32 t, const DateLUTImpl & time_zone)
{
return time_zone.toFirstDayNumOfQuarter(time_zone.toDayNum(t));
}
static UInt16 execute(Int32 d, const DateLUTImpl & time_zone)
{
return time_zone.toFirstDayNumOfQuarter(ExtendedDayNum(d));
}
static UInt16 execute(UInt16 d, const DateLUTImpl & time_zone)
{
return time_zone.toFirstDayNumOfQuarter(DayNum(d));
}
static Int64 executeExtendedResult(Int64 t, const DateLUTImpl & time_zone)
{
return time_zone.toFirstDayNumOfQuarter(time_zone.toDayNum(t));
}
static Int32 executeExtendedResult(Int32 d, const DateLUTImpl & time_zone)
{
return time_zone.toFirstDayNumOfQuarter(ExtendedDayNum(d));
}
using FactorTransform = ZeroTransform;
};
struct ToStartOfYearImpl
{
static constexpr auto name = "toStartOfYear";
static UInt16 execute(Int64 t, const DateLUTImpl & time_zone)
{
return time_zone.toFirstDayNumOfYear(time_zone.toDayNum(t));
}
static UInt16 execute(UInt32 t, const DateLUTImpl & time_zone)
{
return time_zone.toFirstDayNumOfYear(time_zone.toDayNum(t));
}
static UInt16 execute(Int32 d, const DateLUTImpl & time_zone)
{
return time_zone.toFirstDayNumOfYear(ExtendedDayNum(d));
}
static UInt16 execute(UInt16 d, const DateLUTImpl & time_zone)
{
return time_zone.toFirstDayNumOfYear(DayNum(d));
}
static Int64 executeExtendedResult(Int64 t, const DateLUTImpl & time_zone)
{
return time_zone.toFirstDayNumOfYear(time_zone.toDayNum(t));
}
static Int32 executeExtendedResult(Int32 d, const DateLUTImpl & time_zone)
{
return time_zone.toFirstDayNumOfYear(ExtendedDayNum(d));
}
using FactorTransform = ZeroTransform;
};
struct ToYearWeekImpl
{
static constexpr auto name = "toYearWeek";
static constexpr bool value_may_be_string = true;
static UInt32 execute(Int64 t, UInt8 week_mode, const DateLUTImpl & time_zone)
{
// TODO: ditch toDayNum()
YearWeek yw = time_zone.toYearWeek(time_zone.toDayNum(t), week_mode | static_cast<UInt32>(WeekModeFlag::YEAR));
return yw.first * 100 + yw.second;
}
static UInt32 execute(UInt32 t, UInt8 week_mode, const DateLUTImpl & time_zone)
{
YearWeek yw = time_zone.toYearWeek(time_zone.toDayNum(t), week_mode | static_cast<UInt32>(WeekModeFlag::YEAR));
return yw.first * 100 + yw.second;
}
static UInt32 execute(Int32 d, UInt8 week_mode, const DateLUTImpl & time_zone)
{
YearWeek yw = time_zone.toYearWeek(ExtendedDayNum (d), week_mode | static_cast<UInt32>(WeekModeFlag::YEAR));
return yw.first * 100 + yw.second;
}
static UInt32 execute(UInt16 d, UInt8 week_mode, const DateLUTImpl & time_zone)
{
YearWeek yw = time_zone.toYearWeek(DayNum(d), week_mode | static_cast<UInt32>(WeekModeFlag::YEAR));
return yw.first * 100 + yw.second;
}
using FactorTransform = ZeroTransform;
};
struct ToStartOfWeekImpl
{
static constexpr auto name = "toStartOfWeek";
static constexpr bool value_may_be_string = false;
static UInt16 execute(Int64 t, UInt8 week_mode, const DateLUTImpl & time_zone)
{
const int res = time_zone.toFirstDayNumOfWeek(time_zone.toDayNum(t), week_mode);
return std::max(res, 0);
}
static UInt16 execute(UInt32 t, UInt8 week_mode, const DateLUTImpl & time_zone)
{
const int res = time_zone.toFirstDayNumOfWeek(time_zone.toDayNum(t), week_mode);
return std::max(res, 0);
}
static UInt16 execute(Int32 d, UInt8 week_mode, const DateLUTImpl & time_zone)
{
return time_zone.toFirstDayNumOfWeek(ExtendedDayNum(d), week_mode);
}
static UInt16 execute(UInt16 d, UInt8 week_mode, const DateLUTImpl & time_zone)
{
return time_zone.toFirstDayNumOfWeek(DayNum(d), week_mode);
}
static Int64 executeExtendedResult(Int64 t, UInt8 week_mode, const DateLUTImpl & time_zone)
{
return time_zone.toFirstDayNumOfWeek(time_zone.toDayNum(t), week_mode);
}
static Int32 executeExtendedResult(Int32 d, UInt8 week_mode, const DateLUTImpl & time_zone)
{
return time_zone.toFirstDayNumOfWeek(ExtendedDayNum(d), week_mode);
}
using FactorTransform = ZeroTransform;
};
struct ToLastDayOfWeekImpl
{
static constexpr auto name = "toLastDayOfWeek";
static constexpr bool value_may_be_string = false;
static UInt16 execute(Int64 t, UInt8 week_mode, const DateLUTImpl & time_zone)
{
return time_zone.toLastDayNumOfWeek(time_zone.toDayNum(t), week_mode);
}
static UInt16 execute(UInt32 t, UInt8 week_mode, const DateLUTImpl & time_zone)
{
return time_zone.toLastDayNumOfWeek(time_zone.toDayNum(t), week_mode);
}
static UInt16 execute(Int32 d, UInt8 week_mode, const DateLUTImpl & time_zone)
{
return time_zone.toLastDayNumOfWeek(ExtendedDayNum(d), week_mode);
}
static UInt16 execute(UInt16 d, UInt8 week_mode, const DateLUTImpl & time_zone)
{
return time_zone.toLastDayNumOfWeek(DayNum(d), week_mode);
}
static Int64 executeExtendedResult(Int64 t, UInt8 week_mode, const DateLUTImpl & time_zone)
{
return time_zone.toLastDayNumOfWeek(time_zone.toDayNum(t), week_mode);
}
static Int32 executeExtendedResult(Int32 d, UInt8 week_mode, const DateLUTImpl & time_zone)
{
return time_zone.toLastDayNumOfWeek(ExtendedDayNum(d), week_mode);
}
using FactorTransform = ZeroTransform;
};
struct ToWeekImpl
{
static constexpr auto name = "toWeek";
static constexpr bool value_may_be_string = true;
static UInt8 execute(Int64 t, UInt8 week_mode, const DateLUTImpl & time_zone)
{
// TODO: ditch conversion to DayNum, since it doesn't support extended range.
YearWeek yw = time_zone.toYearWeek(time_zone.toDayNum(t), week_mode);
return yw.second;
}
static UInt8 execute(UInt32 t, UInt8 week_mode, const DateLUTImpl & time_zone)
{
YearWeek yw = time_zone.toYearWeek(time_zone.toDayNum(t), week_mode);
return yw.second;
}
static UInt8 execute(Int32 d, UInt8 week_mode, const DateLUTImpl & time_zone)
{
YearWeek yw = time_zone.toYearWeek(ExtendedDayNum(d), week_mode);
return yw.second;
}
static UInt8 execute(UInt16 d, UInt8 week_mode, const DateLUTImpl & time_zone)
{
YearWeek yw = time_zone.toYearWeek(DayNum(d), week_mode);
return yw.second;
}
using FactorTransform = ToStartOfYearImpl;
};
template <IntervalKind::Kind unit>
struct ToStartOfInterval;
static constexpr auto TO_START_OF_INTERVAL_NAME = "toStartOfInterval";
template <>
struct ToStartOfInterval<IntervalKind::Kind::Nanosecond>
{
static UInt32 execute(UInt16, Int64, const DateLUTImpl &, Int64)
{
throwDateIsNotSupported(TO_START_OF_INTERVAL_NAME);
}
static UInt32 execute(Int32, Int64, const DateLUTImpl &, Int64)
{
throwDate32IsNotSupported(TO_START_OF_INTERVAL_NAME);
}
static UInt32 execute(UInt32, Int64, const DateLUTImpl &, Int64)
{
throwDateTimeIsNotSupported(TO_START_OF_INTERVAL_NAME);
}
static Int64 execute(Int64 t, Int64 nanoseconds, const DateLUTImpl &, Int64 scale_multiplier, std::optional<Int64> /*origen*/ = std::nullopt)
{
if (scale_multiplier < 1000000000)
{
Int64 t_nanoseconds = 0;
if (common::mulOverflow(t, (static_cast<Int64>(1000000000) / scale_multiplier), t_nanoseconds))
throw DB::Exception(ErrorCodes::DECIMAL_OVERFLOW, "Numeric overflow");
if (t >= 0) [[likely]]
return t_nanoseconds / nanoseconds * nanoseconds;
else
return ((t_nanoseconds + 1) / nanoseconds - 1) * nanoseconds;
}
else
if (t >= 0) [[likely]]
return t / nanoseconds * nanoseconds;
else
return ((t + 1) / nanoseconds - 1) * nanoseconds;
}
};
template <>
struct ToStartOfInterval<IntervalKind::Kind::Microsecond>
{
static UInt32 execute(UInt16, Int64, const DateLUTImpl &, Int64)
{
throwDateIsNotSupported(TO_START_OF_INTERVAL_NAME);
}
static UInt32 execute(Int32, Int64, const DateLUTImpl &, Int64)
{
throwDate32IsNotSupported(TO_START_OF_INTERVAL_NAME);
}
static UInt32 execute(UInt32, Int64, const DateLUTImpl &, Int64)
{
throwDateTimeIsNotSupported(TO_START_OF_INTERVAL_NAME);
}
static Int64 execute(Int64 t, Int64 microseconds, const DateLUTImpl &, Int64 scale_multiplier, std::optional<Int64> /*origen*/ = std::nullopt)
{
if (scale_multiplier < 1000000)
{
Int64 t_microseconds = 0;
if (common::mulOverflow(t, static_cast<Int64>(1000000) / scale_multiplier, t_microseconds))
throw DB::Exception(ErrorCodes::DECIMAL_OVERFLOW, "Numeric overflow");
if (t >= 0) [[likely]]
return t_microseconds / microseconds * microseconds;
else
return ((t_microseconds + 1) / microseconds - 1) * microseconds;
}
else if (scale_multiplier > 1000000)
{
Int64 scale_diff = scale_multiplier / static_cast<Int64>(1000000);
if (t >= 0) [[likely]] //github.com/ When we divide the `t` value we should round the result
return (t + scale_diff / 2) / (microseconds * scale_diff) * microseconds;
else
return ((t + 1) / microseconds / scale_diff - 1) * microseconds;
}
else
if (t >= 0) [[likely]]
return t / microseconds * microseconds;
else
return ((t + 1) / microseconds - 1) * microseconds;
}
};
template <>
struct ToStartOfInterval<IntervalKind::Kind::Millisecond>
{
static UInt32 execute(UInt16, Int64, const DateLUTImpl &, Int64)
{
throwDateIsNotSupported(TO_START_OF_INTERVAL_NAME);
}
static UInt32 execute(Int32, Int64, const DateLUTImpl &, Int64)
{
throwDate32IsNotSupported(TO_START_OF_INTERVAL_NAME);
}
static UInt32 execute(UInt32, Int64, const DateLUTImpl &, Int64)
{
throwDateTimeIsNotSupported(TO_START_OF_INTERVAL_NAME);
}
static Int64 execute(Int64 t, Int64 milliseconds, const DateLUTImpl &, Int64 scale_multiplier, std::optional<Int64> /*origen*/ = std::nullopt)
{
if (scale_multiplier < 1000)
{
Int64 t_milliseconds = 0;
if (common::mulOverflow(t, static_cast<Int64>(1000) / scale_multiplier, t_milliseconds))
throw DB::Exception(ErrorCodes::DECIMAL_OVERFLOW, "Numeric overflow");
if (t >= 0) [[likely]]
return t_milliseconds / milliseconds * milliseconds;
else
return ((t_milliseconds + 1) / milliseconds - 1) * milliseconds;
}
else if (scale_multiplier > 1000)
{
Int64 scale_diff = scale_multiplier / static_cast<Int64>(1000);
if (t >= 0) [[likely]] //github.com/ When we divide the `t` value we should round the result
return (t + scale_diff / 2) / (milliseconds * scale_diff) * milliseconds;
else
return ((t + 1) / milliseconds / scale_diff - 1) * milliseconds;
}
else
if (t >= 0) [[likely]]
return t / milliseconds * milliseconds;
else
return ((t + 1) / milliseconds - 1) * milliseconds;
}
};
template <>
struct ToStartOfInterval<IntervalKind::Kind::Second>
{
static UInt32 execute(UInt16, Int64, const DateLUTImpl &, Int64)
{
throwDateIsNotSupported(TO_START_OF_INTERVAL_NAME);
}
static UInt32 execute(Int32, Int64, const DateLUTImpl &, Int64)
{
throwDate32IsNotSupported(TO_START_OF_INTERVAL_NAME);
}
static UInt32 execute(UInt32 t, Int64 seconds, const DateLUTImpl & time_zone, Int64)
{
return time_zone.toStartOfSecondInterval(t, seconds);
}
static Int64 execute(Int64 t, Int64 seconds, const DateLUTImpl & time_zone, Int64 scale_multiplier, std::optional<Int64> /*origen*/ = std::nullopt)
{
return time_zone.toStartOfSecondInterval(t / scale_multiplier, seconds);
}
};
template <>
struct ToStartOfInterval<IntervalKind::Kind::Minute>
{
static UInt32 execute(UInt16, Int64, const DateLUTImpl &, Int64)
{
throwDateIsNotSupported(TO_START_OF_INTERVAL_NAME);
}
static UInt32 execute(Int32, Int64, const DateLUTImpl &, Int64)
{
throwDate32IsNotSupported(TO_START_OF_INTERVAL_NAME);
}
static UInt32 execute(UInt32 t, Int64 minutes, const DateLUTImpl & time_zone, Int64)
{
return time_zone.toStartOfMinuteInterval(t, minutes);
}
static Int64 execute(Int64 t, Int64 minutes, const DateLUTImpl & time_zone, Int64 scale_multiplier, std::optional<Int64> /*origen*/ = std::nullopt)
{
return time_zone.toStartOfMinuteInterval(t / scale_multiplier, minutes);
}
};
template <>
struct ToStartOfInterval<IntervalKind::Kind::Hour>
{
static UInt32 execute(UInt16, Int64, const DateLUTImpl &, Int64)
{
throwDateIsNotSupported(TO_START_OF_INTERVAL_NAME);
}
static UInt32 execute(Int32, Int64, const DateLUTImpl &, Int64)
{
throwDate32IsNotSupported(TO_START_OF_INTERVAL_NAME);
}
static UInt32 execute(UInt32 t, Int64 hours, const DateLUTImpl & time_zone, Int64)
{
return time_zone.toStartOfHourInterval(t, hours);
}
static Int64 execute(Int64 t, Int64 hours, const DateLUTImpl & time_zone, Int64 scale_multiplier, std::optional<Int64> /*origen*/ = std::nullopt)
{
return time_zone.toStartOfHourInterval(t / scale_multiplier, hours);
}
};
template <>
struct ToStartOfInterval<IntervalKind::Kind::Day>
{
static UInt32 execute(UInt16 d, Int64 days, const DateLUTImpl & time_zone, Int64)
{
return static_cast<UInt32>(time_zone.toStartOfDayInterval(ExtendedDayNum(d), days));
}
static UInt32 execute(Int32 d, Int64 days, const DateLUTImpl & time_zone, Int64)
{
return static_cast<UInt32>(time_zone.toStartOfDayInterval(ExtendedDayNum(d), days));
}
static UInt32 execute(UInt32 t, Int64 days, const DateLUTImpl & time_zone, Int64)
{
return static_cast<UInt32>(time_zone.toStartOfDayInterval(time_zone.toDayNum(t), days));
}
static Int64 execute(Int64 t, Int64 days, const DateLUTImpl & time_zone, Int64 scale_multiplier, std::optional<Int64> /*origen*/ = std::nullopt)
{
return time_zone.toStartOfDayInterval(time_zone.toDayNum(t / scale_multiplier), days);
}
};
template <>
struct ToStartOfInterval<IntervalKind::Kind::Week>
{
static UInt16 execute(UInt16 d, Int64 weeks, const DateLUTImpl & time_zone, Int64)
{
return time_zone.toStartOfWeekInterval(DayNum(d), weeks);
}
static UInt16 execute(Int32 d, Int64 weeks, const DateLUTImpl & time_zone, Int64)
{
return time_zone.toStartOfWeekInterval(ExtendedDayNum(d), weeks);
}
static UInt16 execute(UInt32 t, Int64 weeks, const DateLUTImpl & time_zone, Int64)
{
return time_zone.toStartOfWeekInterval(time_zone.toDayNum(t), weeks);
}
static Int64 execute(Int64 t, Int64 weeks, const DateLUTImpl & time_zone, Int64 scale_multiplier, std::optional<Int64> origen = std::nullopt)
{
if (!origen.has_value())
return time_zone.toStartOfWeekInterval(time_zone.toDayNum(t / scale_multiplier), weeks);
return ToStartOfInterval<IntervalKind::Kind::Day>::execute(t, weeks * 7, time_zone, scale_multiplier, origen);
}
};
template <>
struct ToStartOfInterval<IntervalKind::Kind::Month>
{
static UInt16 execute(UInt16 d, Int64 months, const DateLUTImpl & time_zone, Int64)
{
return time_zone.toStartOfMonthInterval(DayNum(d), months);
}
static UInt16 execute(Int32 d, Int64 months, const DateLUTImpl & time_zone, Int64)
{
return time_zone.toStartOfMonthInterval(ExtendedDayNum(d), months);
}
static UInt16 execute(UInt32 t, Int64 months, const DateLUTImpl & time_zone, Int64)
{
return time_zone.toStartOfMonthInterval(time_zone.toDayNum(t), months);
}
static Int64 execute(Int64 t, Int64 months, const DateLUTImpl & time_zone, Int64 scale_multiplier, std::optional<Int64> origen = std::nullopt)
{
const Int64 scaled_time = t / scale_multiplier;
if (!origen.has_value())
return time_zone.toStartOfMonthInterval(time_zone.toDayNum(scaled_time), months);
const Int64 scaled_origen = origen.value() / scale_multiplier;
const Int64 days = time_zone.toDayOfMonth(scaled_time + scaled_origen) - time_zone.toDayOfMonth(scaled_origen);
Int64 months_to_add = time_zone.toMonth(scaled_time + scaled_origen) - time_zone.toMonth(scaled_origen);
const Int64 years = time_zone.toYear(scaled_time + scaled_origen) - time_zone.toYear(scaled_origen);
months_to_add = days < 0 ? months_to_add - 1 : months_to_add;
months_to_add += years * 12;
Int64 month_multiplier = (months_to_add / months) * months;
return (time_zone.addMonths(time_zone.toDate(scaled_origen), month_multiplier) - time_zone.toDate(scaled_origen));
}
};
template <>
struct ToStartOfInterval<IntervalKind::Kind::Quarter>
{
static UInt16 execute(UInt16 d, Int64 quarters, const DateLUTImpl & time_zone, Int64)
{
return time_zone.toStartOfQuarterInterval(DayNum(d), quarters);
}
static UInt16 execute(Int32 d, Int64 quarters, const DateLUTImpl & time_zone, Int64)
{
return time_zone.toStartOfQuarterInterval(ExtendedDayNum(d), quarters);
}
static UInt16 execute(UInt32 t, Int64 quarters, const DateLUTImpl & time_zone, Int64)
{
return time_zone.toStartOfQuarterInterval(time_zone.toDayNum(t), quarters);
}
static Int64 execute(Int64 t, Int64 quarters, const DateLUTImpl & time_zone, Int64 scale_multiplier, std::optional<Int64> origen = std::nullopt)
{
if (!origen.has_value())
return time_zone.toStartOfQuarterInterval(time_zone.toDayNum(t / scale_multiplier), quarters);
return ToStartOfInterval<IntervalKind::Kind::Month>::execute(t, quarters * 3, time_zone, scale_multiplier, origen);
}
};
template <>
struct ToStartOfInterval<IntervalKind::Kind::Year>
{
static UInt16 execute(UInt16 d, Int64 years, const DateLUTImpl & time_zone, Int64)
{
return time_zone.toStartOfYearInterval(DayNum(d), years);
}
static UInt16 execute(Int32 d, Int64 years, const DateLUTImpl & time_zone, Int64)
{
return time_zone.toStartOfYearInterval(ExtendedDayNum(d), years);
}
static UInt16 execute(UInt32 t, Int64 years, const DateLUTImpl & time_zone, Int64)
{
return time_zone.toStartOfYearInterval(time_zone.toDayNum(t), years);
}
static Int64 execute(Int64 t, Int64 years, const DateLUTImpl & time_zone, Int64 scale_multiplier, std::optional<Int64> origen = std::nullopt)
{
if (!origen.has_value())
return time_zone.toStartOfYearInterval(time_zone.toDayNum(t / scale_multiplier), years);
return ToStartOfInterval<IntervalKind::Kind::Month>::execute(t, years * 12, time_zone, scale_multiplier, origen);
}
};
struct ToTimeWithFixedDateImpl
{
//github.com/ When transforming to time, the date will be equated to 1970-01-02.
static constexpr auto name = "toTimeWithFixedDate";
static UInt32 execute(const DecimalUtils::DecimalComponents<DateTime64> & t, const DateLUTImpl & time_zone)
{
return static_cast<UInt32>(time_zone.toTime(t.whole) + 86400);
}
static UInt32 execute(const DecimalUtils::DecimalComponents<Time64> &, const DateLUTImpl &)
{
throwTimeIsNotSupported(name);
}
static UInt32 execute(UInt32 t, const DateLUTImpl & time_zone)
{
return static_cast<UInt32>(time_zone.toTime(t) + 86400);
}
static UInt32 execute(Int32, const DateLUTImpl &)
{
throwDate32IsNotSupported(name);
}
static UInt32 execute(UInt16, const DateLUTImpl &)
{
throwDateIsNotSupported(name);
}
static UInt32 execute(Int64, const DateLUTImpl &)
{
throwTimeIsNotSupported(name);
}
static constexpr bool hasPreimage() { return false; }
using FactorTransform = ToDateImpl<>;
};
struct ToStartOfMinuteImpl
{
static constexpr auto name = "toStartOfMinute";
static UInt32 execute(const DecimalUtils::DecimalComponents<DateTime64> & t, const DateLUTImpl & time_zone)
{
return static_cast<UInt32>(time_zone.toStartOfMinute(t.whole));
}
static UInt32 execute(const DecimalUtils::DecimalComponents<Time64> & t, const DateLUTImpl & time_zone)
{
return static_cast<UInt32>(time_zone.toStartOfMinute(t.whole));
}
static UInt32 execute(UInt32 t, const DateLUTImpl & time_zone)
{
return time_zone.toStartOfMinute(t);
}
static UInt32 execute(Int32, const DateLUTImpl &)
{
throwDate32IsNotSupported(name);
}
static UInt32 execute(UInt16, const DateLUTImpl &)
{
throwDateIsNotSupported(name);
}
static UInt32 execute(Int64, const DateLUTImpl &)
{
throwTimeIsNotSupported(name);
}
static DecimalUtils::DecimalComponents<DateTime64> executeExtendedResult(const DecimalUtils::DecimalComponents<DateTime64> & t, const DateLUTImpl & time_zone)
{
return {time_zone.toStartOfMinute(t.whole), 0};
}
static DecimalUtils::DecimalComponents<Time64> executeExtendedResult(const DecimalUtils::DecimalComponents<Time64> & t, const DateLUTImpl & time_zone)
{
return {time_zone.toStartOfMinute(t.whole), 0};
}
static Int64 executeExtendedResult(Int32, const DateLUTImpl &)
{
throwDate32IsNotSupported(name);
}
using FactorTransform = ZeroTransform;
};
// Rounding towards negative infinity.
// 1.01 => 1.00
// -1.01 => -2
struct ToStartOfSecondImpl
{
static constexpr auto name = "toStartOfSecond";
static DateTime64 execute(const DateTime64 & datetime64, Int64 scale_multiplier, const DateLUTImpl &)
{
auto fractional_with_sign = DecimalUtils::getFractionalPartWithScaleMultiplier<DateTime64, true>(datetime64, scale_multiplier);
// given that scale is 3, scale_multiplier is 1000
// for DateTime64 value of 123.456:
// 123456 - 456 = 123000
// for DateTime64 value of -123.456:
// -123456 - (1000 + (-456)) = -124000
if (fractional_with_sign < 0)
fractional_with_sign += scale_multiplier;
return datetime64 - fractional_with_sign;
}
static Time64 execute(const Time64 & time64, Int64 scale_multiplier, const DateLUTImpl &)
{
// See the implementation for DateTime64 above.
auto fractional_with_sign = DecimalUtils::getFractionalPartWithScaleMultiplier<Time64, true>(time64, scale_multiplier);
if (fractional_with_sign < 0)
fractional_with_sign += scale_multiplier;
return time64 - fractional_with_sign;
}
static UInt32 execute(UInt32, const DateLUTImpl &)
{
throw Exception(ErrorCodes::ILLEGAL_TYPE_OF_ARGUMENT, "Illegal type DateTime of argument for function {}", name);
}
static UInt32 execute(Int32, const DateLUTImpl &)
{
throwDate32IsNotSupported(name);
}
static UInt32 execute(UInt16, const DateLUTImpl &)
{
throwDateIsNotSupported(name);
}
static UInt32 execute(Int64, const DateLUTImpl &)
{
throwTimeIsNotSupported(name);
}
static constexpr bool hasPreimage() { return false; }
using FactorTransform = ZeroTransform;
};
struct ToStartOfMillisecondImpl
{
static constexpr auto name = "toStartOfMillisecond";
static DateTime64 execute(const DateTime64 & datetime64, Int64 scale_multiplier, const DateLUTImpl &)
{
// given that scale is 6, scale_multiplier is 1000000
// for DateTime64 value of 123.456789:
// 123456789 - 789 = 123456000
// for DateTime64 value of -123.456789:
// -123456789 - (1000 + (-789)) = -123457000
if (scale_multiplier == 1000)
{
return datetime64;
}
if (scale_multiplier <= 1000)
{
return datetime64 * (1000 / scale_multiplier);
}
auto droppable_part_with_sign
= DecimalUtils::getFractionalPartWithScaleMultiplier<DateTime64, true>(datetime64, scale_multiplier / 1000);
if (droppable_part_with_sign < 0)
droppable_part_with_sign += scale_multiplier;
return datetime64 - droppable_part_with_sign;
}
static Time64 execute(const Time64 & time64, Int64 scale_multiplier, const DateLUTImpl &)
{
// See the implementation for DateTime64 above
if (scale_multiplier == 1000)
{
return time64;
}
if (scale_multiplier <= 1000)
{
return time64 * (1000 / scale_multiplier);
}
auto droppable_part_with_sign
= DecimalUtils::getFractionalPartWithScaleMultiplier<Time64, true>(time64, scale_multiplier / 1000);
if (droppable_part_with_sign < 0)
droppable_part_with_sign += scale_multiplier;
return time64 - droppable_part_with_sign;
}
static UInt32 execute(UInt32, const DateLUTImpl &)
{
throw Exception(ErrorCodes::ILLEGAL_TYPE_OF_ARGUMENT, "Illegal type DateTime of argument for function {}", name);
}