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https://github.com/ClickHouse/ClickHouse.git
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538 lines
23 KiB
C++
538 lines
23 KiB
C++
#include <Common/DateLUTImpl.h>
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#include <Columns/ColumnsNumber.h>
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#include <DataTypes/DataTypeDate.h>
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#include <DataTypes/DataTypeDate32.h>
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#include <DataTypes/DataTypeDateTime.h>
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#include <DataTypes/DataTypeDateTime64.h>
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#include <DataTypes/DataTypeInterval.h>
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#include <Functions/DateTimeTransforms.h>
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#include <Functions/FunctionFactory.h>
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#include <Functions/IFunction.h>
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#include <Functions/TransformDateTime64.h>
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#include <IO/WriteHelpers.h>
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namespace DB
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{
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namespace ErrorCodes
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{
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extern const int NUMBER_OF_ARGUMENTS_DOESNT_MATCH;
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extern const int ILLEGAL_COLUMN;
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extern const int ILLEGAL_TYPE_OF_ARGUMENT;
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extern const int ARGUMENT_OUT_OF_BOUND;
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}
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namespace
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{
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constexpr auto function_name = "toStartOfInterval";
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template <IntervalKind::Kind unit>
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struct Transform;
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template <>
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struct Transform<IntervalKind::Year>
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{
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static UInt16 execute(UInt16 d, Int64 years, const DateLUTImpl & time_zone, Int64)
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{
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return time_zone.toStartOfYearInterval(DayNum(d), years);
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}
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static UInt16 execute(Int32 d, Int64 years, const DateLUTImpl & time_zone, Int64)
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{
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return time_zone.toStartOfYearInterval(ExtendedDayNum(d), years);
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}
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static UInt16 execute(UInt32 t, Int64 years, const DateLUTImpl & time_zone, Int64)
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{
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return time_zone.toStartOfYearInterval(time_zone.toDayNum(t), years);
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}
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static UInt16 execute(Int64 t, Int64 years, const DateLUTImpl & time_zone, Int64 scale_multiplier)
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{
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return time_zone.toStartOfYearInterval(time_zone.toDayNum(t / scale_multiplier), years);
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}
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};
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template <>
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struct Transform<IntervalKind::Quarter>
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{
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static UInt16 execute(UInt16 d, Int64 quarters, const DateLUTImpl & time_zone, Int64)
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{
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return time_zone.toStartOfQuarterInterval(DayNum(d), quarters);
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}
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static UInt16 execute(Int32 d, Int64 quarters, const DateLUTImpl & time_zone, Int64)
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{
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return time_zone.toStartOfQuarterInterval(ExtendedDayNum(d), quarters);
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}
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static UInt16 execute(UInt32 t, Int64 quarters, const DateLUTImpl & time_zone, Int64)
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{
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return time_zone.toStartOfQuarterInterval(time_zone.toDayNum(t), quarters);
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}
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static UInt16 execute(Int64 t, Int64 quarters, const DateLUTImpl & time_zone, Int64 scale_multiplier)
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{
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return time_zone.toStartOfQuarterInterval(time_zone.toDayNum(t / scale_multiplier), quarters);
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}
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};
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template <>
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struct Transform<IntervalKind::Month>
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{
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static UInt16 execute(UInt16 d, Int64 months, const DateLUTImpl & time_zone, Int64)
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{
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return time_zone.toStartOfMonthInterval(DayNum(d), months);
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}
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static UInt16 execute(Int32 d, Int64 months, const DateLUTImpl & time_zone, Int64)
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{
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return time_zone.toStartOfMonthInterval(ExtendedDayNum(d), months);
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}
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static UInt16 execute(UInt32 t, Int64 months, const DateLUTImpl & time_zone, Int64)
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{
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return time_zone.toStartOfMonthInterval(time_zone.toDayNum(t), months);
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}
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static UInt16 execute(Int64 t, Int64 months, const DateLUTImpl & time_zone, Int64 scale_multiplier)
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{
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return time_zone.toStartOfMonthInterval(time_zone.toDayNum(t / scale_multiplier), months);
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}
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};
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template <>
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struct Transform<IntervalKind::Week>
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{
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static UInt16 execute(UInt16 d, Int64 weeks, const DateLUTImpl & time_zone, Int64)
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{
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return time_zone.toStartOfWeekInterval(DayNum(d), weeks);
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}
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static UInt16 execute(Int32 d, Int64 weeks, const DateLUTImpl & time_zone, Int64)
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{
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return time_zone.toStartOfWeekInterval(ExtendedDayNum(d), weeks);
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}
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static UInt16 execute(UInt32 t, Int64 weeks, const DateLUTImpl & time_zone, Int64)
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{
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return time_zone.toStartOfWeekInterval(time_zone.toDayNum(t), weeks);
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}
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static UInt16 execute(Int64 t, Int64 weeks, const DateLUTImpl & time_zone, Int64 scale_multiplier)
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{
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return time_zone.toStartOfWeekInterval(time_zone.toDayNum(t / scale_multiplier), weeks);
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}
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};
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template <>
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struct Transform<IntervalKind::Day>
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{
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static UInt32 execute(UInt16 d, Int64 days, const DateLUTImpl & time_zone, Int64)
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{
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return time_zone.toStartOfDayInterval(ExtendedDayNum(d), days);
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}
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static UInt32 execute(Int32 d, Int64 days, const DateLUTImpl & time_zone, Int64)
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{
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return time_zone.toStartOfDayInterval(ExtendedDayNum(d), days);
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}
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static UInt32 execute(UInt32 t, Int64 days, const DateLUTImpl & time_zone, Int64)
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{
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return time_zone.toStartOfDayInterval(time_zone.toDayNum(t), days);
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}
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static Int64 execute(Int64 t, Int64 days, const DateLUTImpl & time_zone, Int64 scale_multiplier)
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{
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return time_zone.toStartOfDayInterval(time_zone.toDayNum(t / scale_multiplier), days);
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}
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};
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template <>
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struct Transform<IntervalKind::Hour>
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{
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static UInt32 execute(UInt16, Int64, const DateLUTImpl &, Int64) { return dateIsNotSupported(function_name); }
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static UInt32 execute(Int32, Int64, const DateLUTImpl &, Int64) { return dateIsNotSupported(function_name); }
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static UInt32 execute(UInt32 t, Int64 hours, const DateLUTImpl & time_zone, Int64)
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{
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return time_zone.toStartOfHourInterval(t, hours);
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}
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static UInt32 execute(Int64 t, Int64 hours, const DateLUTImpl & time_zone, Int64 scale_multiplier)
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{
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return time_zone.toStartOfHourInterval(t / scale_multiplier, hours);
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}
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};
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template <>
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struct Transform<IntervalKind::Minute>
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{
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static UInt32 execute(UInt16, Int64, const DateLUTImpl &, Int64) { return dateIsNotSupported(function_name); }
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static UInt32 execute(Int32, Int64, const DateLUTImpl &, Int64) { return dateIsNotSupported(function_name); }
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static UInt32 execute(UInt32 t, Int64 minutes, const DateLUTImpl & time_zone, Int64)
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{
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return time_zone.toStartOfMinuteInterval(t, minutes);
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}
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static UInt32 execute(Int64 t, Int64 minutes, const DateLUTImpl & time_zone, Int64 scale_multiplier)
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{
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return time_zone.toStartOfMinuteInterval(t / scale_multiplier, minutes);
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}
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};
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template <>
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struct Transform<IntervalKind::Second>
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{
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static UInt32 execute(UInt16, Int64, const DateLUTImpl &, Int64) { return dateIsNotSupported(function_name); }
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static UInt32 execute(Int32, Int64, const DateLUTImpl &, Int64) { return dateIsNotSupported(function_name); }
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static UInt32 execute(UInt32 t, Int64 seconds, const DateLUTImpl & time_zone, Int64)
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{
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return time_zone.toStartOfSecondInterval(t, seconds);
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}
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static UInt32 execute(Int64 t, Int64 seconds, const DateLUTImpl & time_zone, Int64 scale_multiplier)
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{
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return time_zone.toStartOfSecondInterval(t / scale_multiplier, seconds);
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}
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};
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template <>
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struct Transform<IntervalKind::Millisecond>
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{
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static UInt32 execute(UInt16, Int64, const DateLUTImpl &, Int64) { return dateIsNotSupported(function_name); }
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static UInt32 execute(Int32, Int64, const DateLUTImpl &, Int64) { return dateIsNotSupported(function_name); }
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static UInt32 execute(UInt32, Int64, const DateLUTImpl &, Int64) { return dateTimeIsNotSupported(function_name); }
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static Int64 execute(Int64 t, Int64 milliseconds, const DateLUTImpl &, Int64 scale_multiplier)
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{
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if (scale_multiplier < 1000)
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{
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Int64 t_milliseconds = t * (static_cast<Int64>(1000) / scale_multiplier);
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if (likely(t >= 0))
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return t_milliseconds / milliseconds * milliseconds;
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else
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return ((t_milliseconds + 1) / milliseconds - 1) * milliseconds;
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}
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else if (scale_multiplier > 1000)
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{
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Int64 scale_diff = scale_multiplier / static_cast<Int64>(1000);
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if (likely(t >= 0))
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return t / milliseconds / scale_diff * milliseconds;
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else
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return ((t + 1) / milliseconds / scale_diff - 1) * milliseconds;
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}
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else
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if (likely(t >= 0))
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return t / milliseconds * milliseconds;
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else
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return ((t + 1) / milliseconds - 1) * milliseconds;
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}
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};
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template <>
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struct Transform<IntervalKind::Microsecond>
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{
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static UInt32 execute(UInt16, Int64, const DateLUTImpl &, Int64) { return dateIsNotSupported(function_name); }
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static UInt32 execute(Int32, Int64, const DateLUTImpl &, Int64) { return dateIsNotSupported(function_name); }
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static UInt32 execute(UInt32, Int64, const DateLUTImpl &, Int64) { return dateTimeIsNotSupported(function_name); }
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static Int64 execute(Int64 t, Int64 microseconds, const DateLUTImpl &, Int64 scale_multiplier)
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{
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if (scale_multiplier < 1000000)
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{
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Int64 t_microseconds = t * (static_cast<Int64>(1000000) / scale_multiplier);
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if (likely(t >= 0))
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return t_microseconds / microseconds * microseconds;
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else
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return ((t_microseconds + 1) / microseconds - 1) * microseconds;
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}
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else if (scale_multiplier > 1000000)
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{
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Int64 scale_diff = scale_multiplier / static_cast<Int64>(1000000);
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if (likely(t >= 0))
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return t / microseconds / scale_diff * microseconds;
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else
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return ((t + 1) / microseconds / scale_diff - 1) * microseconds;
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}
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else
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if (likely(t >= 0))
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return t / microseconds * microseconds;
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else
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return ((t + 1) / microseconds - 1) * microseconds;
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}
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};
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template <>
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struct Transform<IntervalKind::Nanosecond>
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{
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static UInt32 execute(UInt16, Int64, const DateLUTImpl &, Int64) { return dateIsNotSupported(function_name); }
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static UInt32 execute(Int32, Int64, const DateLUTImpl &, Int64) { return dateIsNotSupported(function_name); }
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static UInt32 execute(UInt32, Int64, const DateLUTImpl &, Int64) { return dateTimeIsNotSupported(function_name); }
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static Int64 execute(Int64 t, Int64 nanoseconds, const DateLUTImpl &, Int64 scale_multiplier)
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{
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if (scale_multiplier < 1000000000)
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{
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Int64 t_nanoseconds = t * (static_cast<Int64>(1000000000) / scale_multiplier);
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if (likely(t >= 0))
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return t_nanoseconds / nanoseconds * nanoseconds;
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else
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return ((t_nanoseconds + 1) / nanoseconds - 1) * nanoseconds;
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}
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else
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if (likely(t >= 0))
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return t / nanoseconds * nanoseconds;
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else
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return ((t + 1) / nanoseconds - 1) * nanoseconds;
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}
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};
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class FunctionToStartOfInterval : public IFunction
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{
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public:
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static FunctionPtr create(ContextPtr) { return std::make_shared<FunctionToStartOfInterval>(); }
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static constexpr auto name = function_name;
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String getName() const override { return name; }
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bool isVariadic() const override { return true; }
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size_t getNumberOfArguments() const override { return 0; }
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bool isSuitableForShortCircuitArgumentsExecution(const DataTypesWithConstInfo & /*arguments*/) const override { return false; }
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DataTypePtr getReturnTypeImpl(const ColumnsWithTypeAndName & arguments) const override
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{
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bool first_argument_is_date = false;
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auto check_first_argument = [&]
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{
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if (!isDate(arguments[0].type) && !isDateTime(arguments[0].type) && !isDateTime64(arguments[0].type))
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throw Exception(
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"Illegal type " + arguments[0].type->getName() + " of argument of function " + getName()
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+ ". Should be a date or a date with time",
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ErrorCodes::ILLEGAL_TYPE_OF_ARGUMENT);
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first_argument_is_date = isDate(arguments[0].type);
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};
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const DataTypeInterval * interval_type = nullptr;
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bool result_type_is_date = false;
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bool result_type_is_datetime = false;
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auto check_interval_argument = [&]
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{
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interval_type = checkAndGetDataType<DataTypeInterval>(arguments[1].type.get());
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if (!interval_type)
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throw Exception(
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"Illegal type " + arguments[1].type->getName() + " of argument of function " + getName()
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+ ". Should be an interval of time",
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ErrorCodes::ILLEGAL_TYPE_OF_ARGUMENT);
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result_type_is_date = (interval_type->getKind() == IntervalKind::Year)
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|| (interval_type->getKind() == IntervalKind::Quarter) || (interval_type->getKind() == IntervalKind::Month)
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|| (interval_type->getKind() == IntervalKind::Week);
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result_type_is_datetime = (interval_type->getKind() == IntervalKind::Day) || (interval_type->getKind() == IntervalKind::Hour)
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|| (interval_type->getKind() == IntervalKind::Minute) || (interval_type->getKind() == IntervalKind::Second);
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};
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auto check_timezone_argument = [&]
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{
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if (!WhichDataType(arguments[2].type).isString())
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throw Exception(
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"Illegal type " + arguments[2].type->getName() + " of argument of function " + getName()
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+ ". This argument is optional and must be a constant string with timezone name",
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ErrorCodes::ILLEGAL_TYPE_OF_ARGUMENT);
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if (first_argument_is_date && result_type_is_date)
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throw Exception(ErrorCodes::ILLEGAL_TYPE_OF_ARGUMENT,
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"The timezone argument of function {} with interval type {} is allowed only when the 1st argument "
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"has the type DateTime or DateTime64",
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getName(), interval_type->getKind().toString());
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};
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if (arguments.size() == 2)
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{
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check_first_argument();
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check_interval_argument();
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}
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else if (arguments.size() == 3)
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{
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check_first_argument();
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check_interval_argument();
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check_timezone_argument();
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}
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else
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{
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throw Exception(
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"Number of arguments for function " + getName() + " doesn't match: passed " + toString(arguments.size())
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+ ", should be 2 or 3",
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ErrorCodes::NUMBER_OF_ARGUMENTS_DOESNT_MATCH);
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}
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if (result_type_is_date)
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return std::make_shared<DataTypeDate>();
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else if (result_type_is_datetime)
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return std::make_shared<DataTypeDateTime>(extractTimeZoneNameFromFunctionArguments(arguments, 2, 0));
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else
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{
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auto scale = 0;
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if (interval_type->getKind() == IntervalKind::Nanosecond)
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scale = 9;
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else if (interval_type->getKind() == IntervalKind::Microsecond)
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scale = 6;
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else if (interval_type->getKind() == IntervalKind::Millisecond)
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scale = 3;
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return std::make_shared<DataTypeDateTime64>(scale, extractTimeZoneNameFromFunctionArguments(arguments, 2, 0));
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}
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}
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bool useDefaultImplementationForConstants() const override { return true; }
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ColumnNumbers getArgumentsThatAreAlwaysConstant() const override { return {1, 2}; }
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ColumnPtr executeImpl(const ColumnsWithTypeAndName & arguments, const DataTypePtr & result_type, size_t /* input_rows_count */) const override
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{
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const auto & time_column = arguments[0];
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const auto & interval_column = arguments[1];
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const auto & time_zone = extractTimeZoneFromFunctionArguments(arguments, 2, 0);
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auto result_column = dispatchForColumns(time_column, interval_column, result_type, time_zone);
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return result_column;
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}
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bool hasInformationAboutMonotonicity() const override
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{
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return true;
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}
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Monotonicity getMonotonicityForRange(const IDataType &, const Field &, const Field &) const override
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{
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return { .is_monotonic = true, .is_always_monotonic = true };
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}
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private:
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ColumnPtr dispatchForColumns(
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const ColumnWithTypeAndName & time_column, const ColumnWithTypeAndName & interval_column, const DataTypePtr & result_type, const DateLUTImpl & time_zone) const
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{
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const auto & from_datatype = *time_column.type.get();
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const auto which_type = WhichDataType(from_datatype);
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if (which_type.isDateTime64())
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{
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const auto * time_column_vec = checkAndGetColumn<DataTypeDateTime64::ColumnType>(time_column.column.get());
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auto scale = assert_cast<const DataTypeDateTime64 &>(from_datatype).getScale();
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if (time_column_vec)
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return dispatchForIntervalColumn(assert_cast<const DataTypeDateTime64&>(from_datatype), *time_column_vec, interval_column, result_type, time_zone, scale);
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}
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if (which_type.isDateTime())
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{
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const auto * time_column_vec = checkAndGetColumn<ColumnUInt32>(time_column.column.get());
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if (time_column_vec)
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return dispatchForIntervalColumn(assert_cast<const DataTypeDateTime&>(from_datatype), *time_column_vec, interval_column, result_type, time_zone);
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}
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if (which_type.isDate())
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{
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const auto * time_column_vec = checkAndGetColumn<ColumnUInt16>(time_column.column.get());
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if (time_column_vec)
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return dispatchForIntervalColumn(assert_cast<const DataTypeDate&>(from_datatype), *time_column_vec, interval_column, result_type, time_zone);
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}
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if (which_type.isDate32())
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{
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const auto * time_column_vec = checkAndGetColumn<ColumnInt32>(time_column.column.get());
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if (time_column_vec)
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return dispatchForIntervalColumn(assert_cast<const DataTypeDate32&>(from_datatype), *time_column_vec, interval_column, result_type, time_zone);
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}
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throw Exception(
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"Illegal column for first argument of function " + getName() + ". Must contain dates or dates with time",
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ErrorCodes::ILLEGAL_TYPE_OF_ARGUMENT);
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}
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template <typename ColumnType, typename FromDataType>
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ColumnPtr dispatchForIntervalColumn(
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const FromDataType & from, const ColumnType & time_column, const ColumnWithTypeAndName & interval_column,
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const DataTypePtr & result_type, const DateLUTImpl & time_zone, const UInt16 scale = 1) const
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{
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const auto * interval_type = checkAndGetDataType<DataTypeInterval>(interval_column.type.get());
|
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if (!interval_type)
|
|
throw Exception(
|
|
"Illegal column for second argument of function " + getName() + ", must be an interval of time.",
|
|
ErrorCodes::ILLEGAL_COLUMN);
|
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const auto * interval_column_const_int64 = checkAndGetColumnConst<ColumnInt64>(interval_column.column.get());
|
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if (!interval_column_const_int64)
|
|
throw Exception(
|
|
"Illegal column for second argument of function " + getName() + ", must be a const interval of time.", ErrorCodes::ILLEGAL_COLUMN);
|
|
Int64 num_units = interval_column_const_int64->getValue<Int64>();
|
|
if (num_units <= 0)
|
|
throw Exception("Value for second argument of function " + getName() + " must be positive.", ErrorCodes::ARGUMENT_OUT_OF_BOUND);
|
|
|
|
switch (interval_type->getKind())
|
|
{
|
|
case IntervalKind::Nanosecond:
|
|
return execute<FromDataType, DataTypeDateTime64, IntervalKind::Nanosecond>(from, time_column, num_units, result_type, time_zone, scale);
|
|
case IntervalKind::Microsecond:
|
|
return execute<FromDataType, DataTypeDateTime64, IntervalKind::Microsecond>(from, time_column, num_units, result_type, time_zone, scale);
|
|
case IntervalKind::Millisecond:
|
|
return execute<FromDataType, DataTypeDateTime64, IntervalKind::Millisecond>(from, time_column, num_units, result_type, time_zone, scale);
|
|
case IntervalKind::Second:
|
|
return execute<FromDataType, DataTypeDateTime, IntervalKind::Second>(from, time_column, num_units, result_type, time_zone, scale);
|
|
case IntervalKind::Minute:
|
|
return execute<FromDataType, DataTypeDateTime, IntervalKind::Minute>(from, time_column, num_units, result_type, time_zone, scale);
|
|
case IntervalKind::Hour:
|
|
return execute<FromDataType, DataTypeDateTime, IntervalKind::Hour>(from, time_column, num_units, result_type, time_zone, scale);
|
|
case IntervalKind::Day:
|
|
return execute<FromDataType, DataTypeDateTime, IntervalKind::Day>(from, time_column, num_units, result_type, time_zone, scale);
|
|
case IntervalKind::Week:
|
|
return execute<FromDataType, DataTypeDate, IntervalKind::Week>(from, time_column, num_units, result_type, time_zone, scale);
|
|
case IntervalKind::Month:
|
|
return execute<FromDataType, DataTypeDate, IntervalKind::Month>(from, time_column, num_units, result_type, time_zone, scale);
|
|
case IntervalKind::Quarter:
|
|
return execute<FromDataType, DataTypeDate, IntervalKind::Quarter>(from, time_column, num_units, result_type, time_zone, scale);
|
|
case IntervalKind::Year:
|
|
return execute<FromDataType, DataTypeDate, IntervalKind::Year>(from, time_column, num_units, result_type, time_zone, scale);
|
|
}
|
|
|
|
__builtin_unreachable();
|
|
}
|
|
|
|
template <typename FromDataType, typename ToDataType, IntervalKind::Kind unit, typename ColumnType>
|
|
ColumnPtr execute(const FromDataType &, const ColumnType & time_column_type, Int64 num_units, const DataTypePtr & result_type, const DateLUTImpl & time_zone, const UInt16 scale) const
|
|
{
|
|
using ToColumnType = typename ToDataType::ColumnType;
|
|
|
|
const auto & time_data = time_column_type.getData();
|
|
size_t size = time_data.size();
|
|
|
|
auto result_col = result_type->createColumn();
|
|
auto *col_to = assert_cast<ToColumnType *>(result_col.get());
|
|
auto & result_data = col_to->getData();
|
|
result_data.resize(size);
|
|
|
|
Int64 scale_multiplier = DecimalUtils::scaleMultiplier<DateTime64>(scale);
|
|
|
|
for (size_t i = 0; i != size; ++i)
|
|
result_data[i] = Transform<unit>::execute(time_data[i], num_units, time_zone, scale_multiplier);
|
|
|
|
return result_col;
|
|
}
|
|
};
|
|
|
|
}
|
|
|
|
void registerFunctionToStartOfInterval(FunctionFactory & factory)
|
|
{
|
|
factory.registerFunction<FunctionToStartOfInterval>();
|
|
}
|
|
|
|
}
|