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Merge branch 'master' into order-by-remerge

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This commit is contained in:
Alexey Milovidov 2018-09-26 04:24:35 +03:00
commit 042536177d
70 changed files with 3611 additions and 2337 deletions
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101
dbms/src/DataTypes/DataTypesDecimal.h
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@ -1,5 +1,5 @@
#pragma once
#include <common/likely.h>
#include <common/arithmeticOverflow.h>
#include <Common/typeid_cast.h>
#include <Columns/ColumnDecimal.h>
#include <DataTypes/IDataType.h>
@ -12,9 +12,9 @@ namespace DB
namespace ErrorCodes
{
extern const int LOGICAL_ERROR;
extern const int ARGUMENT_OUT_OF_BOUND;
extern const int CANNOT_CONVERT_TYPE;
extern const int DECIMAL_OVERFLOW;
}
class Context;
@ -39,9 +39,7 @@ DataTypePtr createDecimal(UInt64 precision, UInt64 scale);
/// Int128 38
/// Operation between two decimals leads to Decimal(P, S), where
/// P is one of (9, 18, 38); equals to the maximum precision for the biggest underlying type of operands.
/// S is maximum scale of operands.
///
/// NOTE: It's possible to set scale as a template parameter then most of functions become static.
/// S is maximum scale of operands. The allowed valuas are [0, precision]
template <typename T>
class DataTypeDecimal final : public DataTypeWithSimpleSerialization
{
@ -156,7 +154,7 @@ public:
private:
const UInt32 precision;
const UInt32 scale; /// TODO: should we support scales out of [0, precision]?
const UInt32 scale;
};
@ -221,49 +219,86 @@ template <> constexpr bool IsDataTypeDecimal<DataTypeDecimal<Decimal32>> = true;
template <> constexpr bool IsDataTypeDecimal<DataTypeDecimal<Decimal64>> = true;
template <> constexpr bool IsDataTypeDecimal<DataTypeDecimal<Decimal128>> = true;
template <typename DataType> constexpr bool IsDataTypeDecimalOrNumber = IsDataTypeDecimal<DataType> || IsDataTypeNumber<DataType>;
template <typename FromDataType, typename ToDataType>
inline std::enable_if_t<IsDataTypeDecimal<FromDataType> && IsDataTypeDecimal<ToDataType>, typename ToDataType::FieldType>
convertDecimals(const typename FromDataType::FieldType & value, UInt32 scale_from, UInt32 scale_to)
{
ToDataType type_to(ToDataType::maxPrecision(), scale_to);
FromDataType type_from(FromDataType::maxPrecision(), scale_from);
using FromFieldType = typename FromDataType::FieldType;
using ToFieldType = typename ToDataType::FieldType;
using MaxFieldType = std::conditional_t<(sizeof(FromFieldType) > sizeof(ToFieldType)), FromFieldType, ToFieldType>;
using MaxNativeType = typename MaxFieldType::NativeType;
if (scale_from > scale_to)
MaxNativeType converted_value;
if (scale_to > scale_from)
{
typename FromDataType::FieldType factor = type_from.scaleFactorFor(type_to, false);
return value / factor;
converted_value = DataTypeDecimal<MaxFieldType>::getScaleMultiplier(scale_to - scale_from);
if (common::mulOverflow(static_cast<MaxNativeType>(value), converted_value, converted_value))
throw Exception("Decimal convert overflow", ErrorCodes::DECIMAL_OVERFLOW);
}
else
converted_value = value / DataTypeDecimal<MaxFieldType>::getScaleMultiplier(scale_from - scale_to);
if constexpr (sizeof(FromFieldType) > sizeof(ToFieldType))
{
if (converted_value < std::numeric_limits<typename ToFieldType::NativeType>::min() ||
converted_value > std::numeric_limits<typename ToFieldType::NativeType>::max())
throw Exception("Decimal convert overflow", ErrorCodes::DECIMAL_OVERFLOW);
}
return converted_value;
}
template <typename FromDataType, typename ToDataType>
inline std::enable_if_t<IsDataTypeDecimal<FromDataType> && IsDataTypeNumber<ToDataType>, typename ToDataType::FieldType>
convertFromDecimal(const typename FromDataType::FieldType & value, UInt32 scale)
{
using FromFieldType = typename FromDataType::FieldType;
using ToFieldType = typename ToDataType::FieldType;
if constexpr (std::is_floating_point_v<ToFieldType>)
return static_cast<ToFieldType>(value) / FromDataType::getScaleMultiplier(scale);
else
{
FromFieldType converted_value = convertDecimals<FromDataType, FromDataType>(value, scale, 0);
if constexpr (sizeof(FromFieldType) > sizeof(ToFieldType) || !std::numeric_limits<ToFieldType>::is_signed)
{
if constexpr (std::numeric_limits<ToFieldType>::is_signed)
{
if (converted_value < std::numeric_limits<ToFieldType>::min() ||
converted_value > std::numeric_limits<ToFieldType>::max())
throw Exception("Decimal convert overflow", ErrorCodes::DECIMAL_OVERFLOW);
}
else
{
typename ToDataType::FieldType factor = type_to.scaleFactorFor(type_from, false);
return value * factor;
using CastIntType = std::conditional_t<std::is_same_v<ToFieldType, UInt64>, Int128, Int64>;
if (converted_value < 0 ||
converted_value > static_cast<CastIntType>(std::numeric_limits<ToFieldType>::max()))
throw Exception("Decimal convert overflow", ErrorCodes::DECIMAL_OVERFLOW);
}
}
return converted_value;
}
}
template <typename FromDataType, typename ToDataType>
inline std::enable_if_t<IsDataTypeDecimal<FromDataType> && !IsDataTypeDecimal<ToDataType>, typename ToDataType::FieldType>
convertFromDecimal(const typename FromDataType::FieldType & value, UInt32 scale [[maybe_unused]])
inline std::enable_if_t<IsDataTypeNumber<FromDataType> && IsDataTypeDecimal<ToDataType>, typename ToDataType::FieldType>
convertToDecimal(const typename FromDataType::FieldType & value, UInt32 scale)
{
if (scale > FromDataType::maxPrecision())
throw Exception("Wrong decimal scale", ErrorCodes::LOGICAL_ERROR);
using FromFieldType = typename FromDataType::FieldType;
if constexpr (!std::is_same_v<ToDataType, DataTypeNumber<typename ToDataType::FieldType>>)
throw Exception("Illegal convertion from decimal", ErrorCodes::CANNOT_CONVERT_TYPE);
else
return static_cast<typename ToDataType::FieldType>(value) / FromDataType::getScaleMultiplier(scale);
}
template <typename FromDataType, typename ToDataType>
inline std::enable_if_t<!IsDataTypeDecimal<FromDataType> && IsDataTypeDecimal<ToDataType>, typename ToDataType::FieldType>
convertToDecimal(const typename FromDataType::FieldType & value, UInt32 scale [[maybe_unused]])
{
if (scale > ToDataType::maxPrecision())
throw Exception("Wrong decimal scale", ErrorCodes::LOGICAL_ERROR);
if constexpr (!std::is_same_v<FromDataType, DataTypeNumber<typename FromDataType::FieldType>>)
throw Exception("Illegal convertion to decimal", ErrorCodes::CANNOT_CONVERT_TYPE);
else
if constexpr (std::is_floating_point_v<FromFieldType>)
return value * ToDataType::getScaleMultiplier(scale);
else
{
if constexpr (std::is_same_v<FromFieldType, UInt64>)
if (value > static_cast<UInt64>(std::numeric_limits<Int64>::max()))
return convertDecimals<DataTypeDecimal<Decimal128>, ToDataType>(value, 0, scale);
return convertDecimals<DataTypeDecimal<Decimal64>, ToDataType>(value, 0, scale);
}
}
}

651
dbms/src/Functions/DateTimeTransforms.h Normal file
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@ -0,0 +1,651 @@
#include <Core/Types.h>
#include <Common/Exception.h>
#include <common/DateLUTImpl.h>
#include <Columns/ColumnVector.h>
#include <Functions/FunctionHelpers.h>
#include <Functions/extractTimeZoneFromFunctionArguments.h>
namespace DB
{
namespace ErrorCodes
{
extern const int ILLEGAL_TYPE_OF_ARGUMENT;
extern const int ILLEGAL_COLUMN;
}
/** 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).
*/
static inline UInt32 dateIsNotSupported(const char * name)
{
throw Exception("Illegal type Date of argument for function " + std::string(name), ErrorCodes::ILLEGAL_TYPE_OF_ARGUMENT);
}
/// This factor transformation will say that the function is monotone everywhere.
struct ZeroTransform
{
static inline UInt16 execute(UInt32, const DateLUTImpl &) { return 0; }
static inline UInt16 execute(UInt16, const DateLUTImpl &) { return 0; }
};
struct ToDateImpl
{
static constexpr auto name = "toDate";
static inline UInt16 execute(UInt32 t, const DateLUTImpl & time_zone)
{
return UInt16(time_zone.toDayNum(t));
}
static inline UInt16 execute(UInt16 d, const DateLUTImpl &)
{
return d;
}
using FactorTransform = ZeroTransform;
};
struct ToStartOfDayImpl
{
static constexpr auto name = "toStartOfDay";
static inline UInt32 execute(UInt32 t, const DateLUTImpl & time_zone)
{
return time_zone.toDate(t);
}
static inline UInt32 execute(UInt16, const DateLUTImpl &)
{
return dateIsNotSupported(name);
}
using FactorTransform = ZeroTransform;
};
struct ToMondayImpl
{
static constexpr auto name = "toMonday";
static inline UInt16 execute(UInt32 t, const DateLUTImpl & time_zone)
{
return time_zone.toFirstDayNumOfWeek(time_zone.toDayNum(t));
}
static inline UInt16 execute(UInt16 d, const DateLUTImpl & time_zone)
{
return time_zone.toFirstDayNumOfWeek(DayNum(d));
}
using FactorTransform = ZeroTransform;
};
struct ToStartOfMonthImpl
{
static constexpr auto name = "toStartOfMonth";
static inline UInt16 execute(UInt32 t, const DateLUTImpl & time_zone)
{
return time_zone.toFirstDayNumOfMonth(time_zone.toDayNum(t));
}
static inline UInt16 execute(UInt16 d, const DateLUTImpl & time_zone)
{
return time_zone.toFirstDayNumOfMonth(DayNum(d));
}
using FactorTransform = ZeroTransform;
};
struct ToStartOfQuarterImpl
{
static constexpr auto name = "toStartOfQuarter";
static inline UInt16 execute(UInt32 t, const DateLUTImpl & time_zone)
{
return time_zone.toFirstDayNumOfQuarter(time_zone.toDayNum(t));
}
static inline UInt16 execute(UInt16 d, const DateLUTImpl & time_zone)
{
return time_zone.toFirstDayNumOfQuarter(DayNum(d));
}
using FactorTransform = ZeroTransform;
};
struct ToStartOfYearImpl
{
static constexpr auto name = "toStartOfYear";
static inline UInt16 execute(UInt32 t, const DateLUTImpl & time_zone)
{
return time_zone.toFirstDayNumOfYear(time_zone.toDayNum(t));
}
static inline UInt16 execute(UInt16 d, const DateLUTImpl & time_zone)
{
return time_zone.toFirstDayNumOfYear(DayNum(d));
}
using FactorTransform = ZeroTransform;
};
struct ToTimeImpl
{
static constexpr auto name = "toTime";
/// When transforming to time, the date will be equated to 1970-01-02.
static inline UInt32 execute(UInt32 t, const DateLUTImpl & time_zone)
{
return time_zone.toTime(t) + 86400;
}
static inline UInt32 execute(UInt16, const DateLUTImpl &)
{
return dateIsNotSupported(name);
}
using FactorTransform = ToDateImpl;
};
struct ToStartOfMinuteImpl
{
static constexpr auto name = "toStartOfMinute";
static inline UInt32 execute(UInt32 t, const DateLUTImpl & time_zone)
{
return time_zone.toStartOfMinute(t);
}
static inline UInt32 execute(UInt16, const DateLUTImpl &)
{
return dateIsNotSupported(name);
}
using FactorTransform = ZeroTransform;
};
struct ToStartOfFiveMinuteImpl
{
static constexpr auto name = "toStartOfFiveMinute";
static inline UInt32 execute(UInt32 t, const DateLUTImpl & time_zone)
{
return time_zone.toStartOfFiveMinute(t);
}
static inline UInt32 execute(UInt16, const DateLUTImpl &)
{
return dateIsNotSupported(name);
}
using FactorTransform = ZeroTransform;
};
struct ToStartOfFifteenMinutesImpl
{
static constexpr auto name = "toStartOfFifteenMinutes";
static inline UInt32 execute(UInt32 t, const DateLUTImpl & time_zone)
{
return time_zone.toStartOfFifteenMinutes(t);
}
static inline UInt32 execute(UInt16, const DateLUTImpl &)
{
return dateIsNotSupported(name);
}
using FactorTransform = ZeroTransform;
};
/// Round to start of half-an-hour length interval with unspecified offset. This transform is specific for Yandex.Metrica.
struct TimeSlotImpl
{
static constexpr auto name = "timeSlot";
static inline UInt32 execute(UInt32 t, const DateLUTImpl &)
{
return t / 1800 * 1800;
}
static inline UInt32 execute(UInt16, const DateLUTImpl &)
{
return dateIsNotSupported(name);
}
using FactorTransform = ZeroTransform;
};
struct ToStartOfHourImpl
{
static constexpr auto name = "toStartOfHour";
static inline UInt32 execute(UInt32 t, const DateLUTImpl & time_zone)
{
return time_zone.toStartOfHour(t);
}
static inline UInt32 execute(UInt16, const DateLUTImpl &)
{
return dateIsNotSupported(name);
}
using FactorTransform = ZeroTransform;
};
struct ToYearImpl
{
static constexpr auto name = "toYear";
static inline UInt16 execute(UInt32 t, const DateLUTImpl & time_zone)
{
return time_zone.toYear(t);
}
static inline UInt16 execute(UInt16 d, const DateLUTImpl & time_zone)
{
return time_zone.toYear(DayNum(d));
}
using FactorTransform = ZeroTransform;
};
struct ToQuarterImpl
{
static constexpr auto name = "toQuarter";
static inline UInt8 execute(UInt32 t, const DateLUTImpl & time_zone)
{
return time_zone.toQuarter(t);
}
static inline UInt8 execute(UInt16 d, const DateLUTImpl & time_zone)
{
return time_zone.toQuarter(DayNum(d));
}
using FactorTransform = ToStartOfYearImpl;
};
struct ToMonthImpl
{
static constexpr auto name = "toMonth";
static inline UInt8 execute(UInt32 t, const DateLUTImpl & time_zone)
{
return time_zone.toMonth(t);
}
static inline UInt8 execute(UInt16 d, const DateLUTImpl & time_zone)
{
return time_zone.toMonth(DayNum(d));
}
using FactorTransform = ToStartOfYearImpl;
};
struct ToDayOfMonthImpl
{
static constexpr auto name = "toDayOfMonth";
static inline UInt8 execute(UInt32 t, const DateLUTImpl & time_zone)
{
return time_zone.toDayOfMonth(t);
}
static inline UInt8 execute(UInt16 d, const DateLUTImpl & time_zone)
{
return time_zone.toDayOfMonth(DayNum(d));
}
using FactorTransform = ToStartOfMonthImpl;
};
struct ToDayOfWeekImpl
{
static constexpr auto name = "toDayOfWeek";
static inline UInt8 execute(UInt32 t, const DateLUTImpl & time_zone)
{
return time_zone.toDayOfWeek(t);
}
static inline UInt8 execute(UInt16 d, const DateLUTImpl & time_zone)
{
return time_zone.toDayOfWeek(DayNum(d));
}
using FactorTransform = ToMondayImpl;
};
struct ToDayOfYearImpl
{
static constexpr auto name = "toDayOfYear";
static inline UInt16 execute(UInt32 t, const DateLUTImpl & time_zone)
{
return time_zone.toDayOfYear(t);
}
static inline UInt16 execute(UInt16 d, const DateLUTImpl & time_zone)
{
return time_zone.toDayOfYear(DayNum(d));
}
using FactorTransform = ToStartOfYearImpl;
};
struct ToHourImpl
{
static constexpr auto name = "toHour";
static inline UInt8 execute(UInt32 t, const DateLUTImpl & time_zone)
{
return time_zone.toHour(t);
}
static inline UInt8 execute(UInt16, const DateLUTImpl &)
{
return dateIsNotSupported(name);
}
using FactorTransform = ToDateImpl;
};
struct ToMinuteImpl
{
static constexpr auto name = "toMinute";
static inline UInt8 execute(UInt32 t, const DateLUTImpl & time_zone)
{
return time_zone.toMinute(t);
}
static inline UInt8 execute(UInt16, const DateLUTImpl &)
{
return dateIsNotSupported(name);
}
using FactorTransform = ToStartOfHourImpl;
};
struct ToSecondImpl
{
static constexpr auto name = "toSecond";
static inline UInt8 execute(UInt32 t, const DateLUTImpl & time_zone)
{
return time_zone.toSecond(t);
}
static inline UInt8 execute(UInt16, const DateLUTImpl &)
{
return dateIsNotSupported(name);
}
using FactorTransform = ToStartOfMinuteImpl;
};
struct ToISOYearImpl
{
static constexpr auto name = "toISOYear";
static inline UInt16 execute(UInt32 t, const DateLUTImpl & time_zone)
{
return time_zone.toISOYear(time_zone.toDayNum(t));
}
static inline UInt16 execute(UInt16 d, const DateLUTImpl & time_zone)
{
return time_zone.toISOYear(DayNum(d));
}
using FactorTransform = ZeroTransform;
};
struct ToStartOfISOYearImpl
{
static constexpr auto name = "toStartOfISOYear";
static inline UInt16 execute(UInt32 t, const DateLUTImpl & time_zone)
{
return time_zone.toFirstDayNumOfISOYear(time_zone.toDayNum(t));
}
static inline UInt16 execute(UInt16 d, const DateLUTImpl & time_zone)
{
return time_zone.toFirstDayNumOfISOYear(DayNum(d));
}
using FactorTransform = ZeroTransform;
};
struct ToISOWeekImpl
{
static constexpr auto name = "toISOWeek";
static inline UInt8 execute(UInt32 t, const DateLUTImpl & time_zone)
{
return time_zone.toISOWeek(time_zone.toDayNum(t));
}
static inline UInt8 execute(UInt16 d, const DateLUTImpl & time_zone)
{
return time_zone.toISOWeek(DayNum(d));
}
using FactorTransform = ToISOYearImpl;
};
struct ToRelativeYearNumImpl
{
static constexpr auto name = "toRelativeYearNum";
static inline UInt16 execute(UInt32 t, const DateLUTImpl & time_zone)
{
return time_zone.toYear(t);
}
static inline UInt16 execute(UInt16 d, const DateLUTImpl & time_zone)
{
return time_zone.toYear(DayNum(d));
}
using FactorTransform = ZeroTransform;
};
struct ToRelativeQuarterNumImpl
{
static constexpr auto name = "toRelativeQuarterNum";
static inline UInt16 execute(UInt32 t, const DateLUTImpl & time_zone)
{
return time_zone.toRelativeQuarterNum(t);
}
static inline UInt16 execute(UInt16 d, const DateLUTImpl & time_zone)
{
return time_zone.toRelativeQuarterNum(DayNum(d));
}
using FactorTransform = ZeroTransform;
};
struct ToRelativeMonthNumImpl
{
static constexpr auto name = "toRelativeMonthNum";
static inline UInt16 execute(UInt32 t, const DateLUTImpl & time_zone)
{
return time_zone.toRelativeMonthNum(t);
}
static inline UInt16 execute(UInt16 d, const DateLUTImpl & time_zone)
{
return time_zone.toRelativeMonthNum(DayNum(d));
}
using FactorTransform = ZeroTransform;
};
struct ToRelativeWeekNumImpl
{
static constexpr auto name = "toRelativeWeekNum";
static inline UInt16 execute(UInt32 t, const DateLUTImpl & time_zone)
{
return time_zone.toRelativeWeekNum(t);
}
static inline UInt16 execute(UInt16 d, const DateLUTImpl & time_zone)
{
return time_zone.toRelativeWeekNum(DayNum(d));
}
using FactorTransform = ZeroTransform;
};
struct ToRelativeDayNumImpl
{
static constexpr auto name = "toRelativeDayNum";
static inline UInt16 execute(UInt32 t, const DateLUTImpl & time_zone)
{
return time_zone.toDayNum(t);
}
static inline UInt16 execute(UInt16 d, const DateLUTImpl &)
{
return static_cast<DayNum>(d);
}
using FactorTransform = ZeroTransform;
};
struct ToRelativeHourNumImpl
{
static constexpr auto name = "toRelativeHourNum";
static inline UInt32 execute(UInt32 t, const DateLUTImpl & time_zone)
{
return time_zone.toRelativeHourNum(t);
}
static inline UInt32 execute(UInt16 d, const DateLUTImpl & time_zone)
{
return time_zone.toRelativeHourNum(DayNum(d));
}
using FactorTransform = ZeroTransform;
};
struct ToRelativeMinuteNumImpl
{
static constexpr auto name = "toRelativeMinuteNum";
static inline UInt32 execute(UInt32 t, const DateLUTImpl & time_zone)
{
return time_zone.toRelativeMinuteNum(t);
}
static inline UInt32 execute(UInt16 d, const DateLUTImpl & time_zone)
{
return time_zone.toRelativeMinuteNum(DayNum(d));
}
using FactorTransform = ZeroTransform;
};
struct ToRelativeSecondNumImpl
{
static constexpr auto name = "toRelativeSecondNum";
static inline UInt32 execute(UInt32 t, const DateLUTImpl &)
{
return t;
}
static inline UInt32 execute(UInt16 d, const DateLUTImpl & time_zone)
{
return time_zone.fromDayNum(DayNum(d));
}
using FactorTransform = ZeroTransform;
};
struct ToYYYYMMImpl
{
static constexpr auto name = "toYYYYMM";
static inline UInt32 execute(UInt32 t, const DateLUTImpl & time_zone)
{
return time_zone.toNumYYYYMM(t);
}
static inline UInt32 execute(UInt16 d, const DateLUTImpl & time_zone)
{
return time_zone.toNumYYYYMM(static_cast<DayNum>(d));
}
using FactorTransform = ZeroTransform;
};
struct ToYYYYMMDDImpl
{
static constexpr auto name = "toYYYYMMDD";
static inline UInt32 execute(UInt32 t, const DateLUTImpl & time_zone)
{
return time_zone.toNumYYYYMMDD(t);
}
static inline UInt32 execute(UInt16 d, const DateLUTImpl & time_zone)
{
return time_zone.toNumYYYYMMDD(static_cast<DayNum>(d));
}
using FactorTransform = ZeroTransform;
};
struct ToYYYYMMDDhhmmssImpl
{
static constexpr auto name = "toYYYYMMDDhhmmss";
static inline UInt64 execute(UInt32 t, const DateLUTImpl & time_zone)
{
return time_zone.toNumYYYYMMDDhhmmss(t);
}
static inline UInt64 execute(UInt16 d, const DateLUTImpl & time_zone)
{
return time_zone.toNumYYYYMMDDhhmmss(time_zone.toDate(static_cast<DayNum>(d)));
}
using FactorTransform = ZeroTransform;
};
template <typename FromType, typename ToType, typename Transform>
struct Transformer
{
static void vector(const PaddedPODArray<FromType> & vec_from, PaddedPODArray<ToType> & vec_to, const DateLUTImpl & time_zone)
{
size_t size = vec_from.size();
vec_to.resize(size);
for (size_t i = 0; i < size; ++i)
vec_to[i] = Transform::execute(vec_from[i], time_zone);
}
};
template <typename FromType, typename ToType, typename Transform>
struct DateTimeTransformImpl
{
static void execute(Block & block, const ColumnNumbers & arguments, size_t result, size_t /*input_rows_count*/)
{
using Op = Transformer<FromType, ToType, Transform>;
const DateLUTImpl & time_zone = extractTimeZoneFromFunctionArguments(block, arguments, 1, 0);
const ColumnPtr source_col = block.getByPosition(arguments[0]).column;
if (const auto * sources = checkAndGetColumn<ColumnVector<FromType>>(source_col.get()))
{
auto col_to = ColumnVector<ToType>::create();
Op::vector(sources->getData(), col_to->getData(), time_zone);
block.getByPosition(result).column = std::move(col_to);
}
else
{
throw Exception("Illegal column " + block.getByPosition(arguments[0]).column->getName()
+ " of first argument of function " + Transform::name,
ErrorCodes::ILLEGAL_COLUMN);
}
}
};
}

308
dbms/src/Functions/FunctionDateOrDateTimeAddInterval.h Normal file
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@ -0,0 +1,308 @@
#include <common/DateLUTImpl.h>
#include <DataTypes/DataTypeDate.h>
#include <DataTypes/DataTypeDateTime.h>
#include <Columns/ColumnVector.h>
#include <Functions/IFunction.h>
#include <Functions/FunctionHelpers.h>
#include <Functions/extractTimeZoneFromFunctionArguments.h>
#include <IO/WriteHelpers.h>
namespace DB
{
namespace ErrorCodes
{
extern const int NUMBER_OF_ARGUMENTS_DOESNT_MATCH;
extern const int ILLEGAL_TYPE_OF_ARGUMENT;
extern const int ILLEGAL_COLUMN;
}
struct AddSecondsImpl
{
static constexpr auto name = "addSeconds";
static inline UInt32 execute(UInt32 t, Int64 delta, const DateLUTImpl &)
{
return t + delta;
}
static inline UInt32 execute(UInt16 d, Int64 delta, const DateLUTImpl & time_zone)
{
return time_zone.fromDayNum(DayNum(d)) + delta;
}
};
struct AddMinutesImpl
{
static constexpr auto name = "addMinutes";
static inline UInt32 execute(UInt32 t, Int64 delta, const DateLUTImpl &)
{
return t + delta * 60;
}
static inline UInt32 execute(UInt16 d, Int64 delta, const DateLUTImpl & time_zone)
{
return time_zone.fromDayNum(DayNum(d)) + delta * 60;
}
};
struct AddHoursImpl
{
static constexpr auto name = "addHours";
static inline UInt32 execute(UInt32 t, Int64 delta, const DateLUTImpl &)
{
return t + delta * 3600;
}
static inline UInt32 execute(UInt16 d, Int64 delta, const DateLUTImpl & time_zone)
{
return time_zone.fromDayNum(DayNum(d)) + delta * 3600;
}
};
struct AddDaysImpl
{
static constexpr auto name = "addDays";
static inline UInt32 execute(UInt32 t, Int64 delta, const DateLUTImpl & time_zone)
{
return time_zone.addDays(t, delta);
}
static inline UInt16 execute(UInt16 d, Int64 delta, const DateLUTImpl &)
{
return d + delta;
}
};
struct AddWeeksImpl
{
static constexpr auto name = "addWeeks";
static inline UInt32 execute(UInt32 t, Int64 delta, const DateLUTImpl & time_zone)
{
return time_zone.addWeeks(t, delta);
}
static inline UInt16 execute(UInt16 d, Int64 delta, const DateLUTImpl &)
{
return d + delta * 7;
}
};
struct AddMonthsImpl
{
static constexpr auto name = "addMonths";
static inline UInt32 execute(UInt32 t, Int64 delta, const DateLUTImpl & time_zone)
{
return time_zone.addMonths(t, delta);
}
static inline UInt16 execute(UInt16 d, Int64 delta, const DateLUTImpl & time_zone)
{
return time_zone.addMonths(DayNum(d), delta);
}
};
struct AddYearsImpl
{
static constexpr auto name = "addYears";
static inline UInt32 execute(UInt32 t, Int64 delta, const DateLUTImpl & time_zone)
{
return time_zone.addYears(t, delta);
}
static inline UInt16 execute(UInt16 d, Int64 delta, const DateLUTImpl & time_zone)
{
return time_zone.addYears(DayNum(d), delta);
}
};
template <typename Transform>
struct SubtractIntervalImpl
{
static inline UInt32 execute(UInt32 t, Int64 delta, const DateLUTImpl & time_zone)
{
return Transform::execute(t, -delta, time_zone);
}
static inline UInt16 execute(UInt16 d, Int64 delta, const DateLUTImpl & time_zone)
{
return Transform::execute(d, -delta, time_zone);
}
};
struct SubtractSecondsImpl : SubtractIntervalImpl<AddSecondsImpl> { static constexpr auto name = "subtractSeconds"; };
struct SubtractMinutesImpl : SubtractIntervalImpl<AddMinutesImpl> { static constexpr auto name = "subtractMinutes"; };
struct SubtractHoursImpl : SubtractIntervalImpl<AddHoursImpl> { static constexpr auto name = "subtractHours"; };
struct SubtractDaysImpl : SubtractIntervalImpl<AddDaysImpl> { static constexpr auto name = "subtractDays"; };
struct SubtractWeeksImpl : SubtractIntervalImpl<AddWeeksImpl> { static constexpr auto name = "subtractWeeks"; };
struct SubtractMonthsImpl : SubtractIntervalImpl<AddMonthsImpl> { static constexpr auto name = "subtractMonths"; };
struct SubtractYearsImpl : SubtractIntervalImpl<AddYearsImpl> { static constexpr auto name = "subtractYears"; };
template <typename FromType, typename ToType, typename Transform>
struct Adder
{
static void vector_vector(const PaddedPODArray<FromType> & vec_from, PaddedPODArray<ToType> & vec_to, const IColumn & delta, const DateLUTImpl & time_zone)
{
size_t size = vec_from.size();
vec_to.resize(size);
for (size_t i = 0; i < size; ++i)
vec_to[i] = Transform::execute(vec_from[i], delta.getInt(i), time_zone);
}
static void vector_constant(const PaddedPODArray<FromType> & vec_from, PaddedPODArray<ToType> & vec_to, Int64 delta, const DateLUTImpl & time_zone)
{
size_t size = vec_from.size();
vec_to.resize(size);
for (size_t i = 0; i < size; ++i)
vec_to[i] = Transform::execute(vec_from[i], delta, time_zone);
}
static void constant_vector(const FromType & from, PaddedPODArray<ToType> & vec_to, const IColumn & delta, const DateLUTImpl & time_zone)
{
size_t size = delta.size();
vec_to.resize(size);
for (size_t i = 0; i < size; ++i)
vec_to[i] = Transform::execute(from, delta.getInt(i), time_zone);
}
};
template <typename FromType, typename Transform>
struct DateTimeAddIntervalImpl
{
static void execute(Block & block, const ColumnNumbers & arguments, size_t result)
{
using ToType = decltype(Transform::execute(FromType(), 0, std::declval<DateLUTImpl>()));
using Op = Adder<FromType, ToType, Transform>;
const DateLUTImpl & time_zone = extractTimeZoneFromFunctionArguments(block, arguments, 2, 0);
const ColumnPtr source_col = block.getByPosition(arguments[0]).column;
if (const auto * sources = checkAndGetColumn<ColumnVector<FromType>>(source_col.get()))
{
auto col_to = ColumnVector<ToType>::create();
const IColumn & delta_column = *block.getByPosition(arguments[1]).column;
if (const auto * delta_const_column = typeid_cast<const ColumnConst *>(&delta_column))
Op::vector_constant(sources->getData(), col_to->getData(), delta_const_column->getField().get<Int64>(), time_zone);
else
Op::vector_vector(sources->getData(), col_to->getData(), delta_column, time_zone);
block.getByPosition(result).column = std::move(col_to);
}
else if (const auto * sources = checkAndGetColumnConst<ColumnVector<FromType>>(source_col.get()))
{
auto col_to = ColumnVector<ToType>::create();
Op::constant_vector(sources->template getValue<FromType>(), col_to->getData(), *block.getByPosition(arguments[1]).column, time_zone);
block.getByPosition(result).column = std::move(col_to);
}
else
{
throw Exception("Illegal column " + block.getByPosition(arguments[0]).column->getName()
+ " of first argument of function " + Transform::name,
ErrorCodes::ILLEGAL_COLUMN);
}
}
};
template <typename Transform>
class FunctionDateOrDateTimeAddInterval : public IFunction
{
public:
static constexpr auto name = Transform::name;
static FunctionPtr create(const Context &) { return std::make_shared<FunctionDateOrDateTimeAddInterval>(); }
String getName() const override
{
return name;
}
bool isVariadic() const override { return true; }
size_t getNumberOfArguments() const override { return 0; }
DataTypePtr getReturnTypeImpl(const ColumnsWithTypeAndName & arguments) const override
{
if (arguments.size() != 2 && arguments.size() != 3)
throw Exception("Number of arguments for function " + getName() + " doesn't match: passed "
+ toString(arguments.size()) + ", should be 2 or 3",
ErrorCodes::NUMBER_OF_ARGUMENTS_DOESNT_MATCH);
if (!isNumber(arguments[1].type))
throw Exception("Second argument for function " + getName() + " (delta) must be number",
ErrorCodes::ILLEGAL_TYPE_OF_ARGUMENT);
if (arguments.size() == 2)
{
if (!isDateOrDateTime(arguments[0].type))
throw Exception{"Illegal type " + arguments[0].type->getName() + " of argument of function " + getName() +
". Should be a date or a date with time", ErrorCodes::ILLEGAL_TYPE_OF_ARGUMENT};
}
else
{
if (!WhichDataType(arguments[0].type).isDateTime()
|| !WhichDataType(arguments[2].type).isString())
throw Exception(
"Function " + getName() + " supports 2 or 3 arguments. The 1st argument "
"must be of type Date or DateTime. The 2nd argument must be number. "
"The 3rd argument (optional) must be "
"a constant string with timezone name. The timezone argument is allowed "
"only when the 1st argument has the type DateTime",
ErrorCodes::ILLEGAL_TYPE_OF_ARGUMENT);
}
if (WhichDataType(arguments[0].type).isDate())
{
if (std::is_same_v<decltype(Transform::execute(DataTypeDate::FieldType(), 0, std::declval<DateLUTImpl>())), UInt16>)
return std::make_shared<DataTypeDate>();
else
return std::make_shared<DataTypeDateTime>(extractTimeZoneNameFromFunctionArguments(arguments, 2, 0));
}
else
{
if (std::is_same_v<decltype(Transform::execute(DataTypeDateTime::FieldType(), 0, std::declval<DateLUTImpl>())), UInt16>)
return std::make_shared<DataTypeDate>();
else
return std::make_shared<DataTypeDateTime>(extractTimeZoneNameFromFunctionArguments(arguments, 2, 0));
}
}
bool useDefaultImplementationForConstants() const override { return true; }
ColumnNumbers getArgumentsThatAreAlwaysConstant() const override { return {2}; }
void executeImpl(Block & block, const ColumnNumbers & arguments, size_t result, size_t /*input_rows_count*/) override
{
const IDataType * from_type = block.getByPosition(arguments[0]).type.get();
WhichDataType which(from_type);
if (which.isDate())
DateTimeAddIntervalImpl<DataTypeDate::FieldType, Transform>::execute(block, arguments, result);
else if (which.isDateTime())
DateTimeAddIntervalImpl<DataTypeDateTime::FieldType, Transform>::execute(block, arguments, result);
else
throw Exception("Illegal type " + block.getByPosition(arguments[0]).type->getName() + " of argument of function " + getName(),
ErrorCodes::ILLEGAL_TYPE_OF_ARGUMENT);
}
};
}

125
dbms/src/Functions/FunctionDateOrDateTimeToSomething.h Normal file
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@ -0,0 +1,125 @@
#include <DataTypes/DataTypeDate.h>
#include <DataTypes/DataTypeDateTime.h>
#include <Functions/IFunction.h>
#include <Functions/extractTimeZoneFromFunctionArguments.h>
#include <IO/WriteHelpers.h>
namespace DB
{
namespace ErrorCodes
{
extern const int ILLEGAL_TYPE_OF_ARGUMENT;
extern const int NUMBER_OF_ARGUMENTS_DOESNT_MATCH;
}
/// See DateTimeTransforms.h
template <typename ToDataType, typename Transform>
class FunctionDateOrDateTimeToSomething : public IFunction
{
public:
static constexpr auto name = Transform::name;
static FunctionPtr create(const Context &) { return std::make_shared<FunctionDateOrDateTimeToSomething>(); }
String getName() const override
{
return name;
}
bool isVariadic() const override { return true; }
size_t getNumberOfArguments() const override { return 0; }
DataTypePtr getReturnTypeImpl(const ColumnsWithTypeAndName & arguments) const override
{
if (arguments.size() == 1)
{
if (!isDateOrDateTime(arguments[0].type))
throw Exception("Illegal type " + arguments[0].type->getName() + " of argument of function " + getName() +
". Should be a date or a date with time", ErrorCodes::ILLEGAL_TYPE_OF_ARGUMENT);
}
else if (arguments.size() == 2)
{
if (!WhichDataType(arguments[0].type).isDateTime()
|| !WhichDataType(arguments[1].type).isString())
throw Exception(
"Function " + getName() + " supports 1 or 2 arguments. The 1st argument "
"must be of type Date or DateTime. The 2nd argument (optional) must be "
"a constant string with timezone name. The timezone argument is allowed "
"only when the 1st argument has the type DateTime",
ErrorCodes::ILLEGAL_TYPE_OF_ARGUMENT);
}
else
throw Exception("Number of arguments for function " + getName() + " doesn't match: passed "
+ toString(arguments.size()) + ", should be 1 or 2",
ErrorCodes::NUMBER_OF_ARGUMENTS_DOESNT_MATCH);
/// For DateTime, if time zone is specified, attach it to type.
if (std::is_same_v<ToDataType, DataTypeDateTime>)
return std::make_shared<DataTypeDateTime>(extractTimeZoneNameFromFunctionArguments(arguments, 1, 0));
else
return std::make_shared<ToDataType>();
}
bool useDefaultImplementationForConstants() const override { return true; }
ColumnNumbers getArgumentsThatAreAlwaysConstant() const override { return {1}; }
void executeImpl(Block & block, const ColumnNumbers & arguments, size_t result, size_t input_rows_count) override
{
const IDataType * from_type = block.getByPosition(arguments[0]).type.get();
WhichDataType which(from_type);
if (which.isDate())
DateTimeTransformImpl<DataTypeDate::FieldType, typename ToDataType::FieldType, Transform>::execute(block, arguments, result, input_rows_count);
else if (which.isDateTime())
DateTimeTransformImpl<DataTypeDateTime::FieldType, typename ToDataType::FieldType, Transform>::execute(block, arguments, result, input_rows_count);
else
throw Exception("Illegal type " + block.getByPosition(arguments[0]).type->getName() + " of argument of function " + getName(),
ErrorCodes::ILLEGAL_TYPE_OF_ARGUMENT);
}
bool hasInformationAboutMonotonicity() const override
{
return true;
}
Monotonicity getMonotonicityForRange(const IDataType & type, const Field & left, const Field & right) const override
{
IFunction::Monotonicity is_monotonic { true };
IFunction::Monotonicity is_not_monotonic;
if (std::is_same_v<typename Transform::FactorTransform, ZeroTransform>)
{
is_monotonic.is_always_monotonic = true;
return is_monotonic;
}
/// This method is called only if the function has one argument. Therefore, we do not care about the non-local time zone.
const DateLUTImpl & date_lut = DateLUT::instance();
if (left.isNull() || right.isNull())
return is_not_monotonic;
/// The function is monotonous on the [left, right] segment, if the factor transformation returns the same values for them.
if (checkAndGetDataType<DataTypeDate>(&type))
{
return Transform::FactorTransform::execute(UInt16(left.get<UInt64>()), date_lut)
== Transform::FactorTransform::execute(UInt16(right.get<UInt64>()), date_lut)
? is_monotonic : is_not_monotonic;
}
else
{
return Transform::FactorTransform::execute(UInt32(left.get<UInt64>()), date_lut)
== Transform::FactorTransform::execute(UInt32(right.get<UInt64>()), date_lut)
? is_monotonic : is_not_monotonic;
}
}
};
}

16
dbms/src/Functions/FunctionsConversion.h
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@ -35,8 +35,8 @@
#include <Interpreters/ExpressionActions.h>
#include <Functions/IFunction.h>
#include <Functions/FunctionsMiscellaneous.h>
#include <Functions/FunctionsDateTime.h>
#include <Functions/FunctionHelpers.h>
#include <Functions/DateTimeTransforms.h>
#include <DataTypes/DataTypeWithDictionary.h>
#include <Columns/ColumnWithDictionary.h>
@ -107,6 +107,13 @@ struct ConvertImpl
using ColVecFrom = std::conditional_t<IsDecimalNumber<FromFieldType>, ColumnDecimal<FromFieldType>, ColumnVector<FromFieldType>>;
using ColVecTo = std::conditional_t<IsDecimalNumber<ToFieldType>, ColumnDecimal<ToFieldType>, ColumnVector<ToFieldType>>;
if constexpr (IsDataTypeDecimal<FromDataType> || IsDataTypeDecimal<ToDataType>)
{
if constexpr (!IsDataTypeDecimalOrNumber<FromDataType> || !IsDataTypeDecimalOrNumber<ToDataType>)
throw Exception("Illegal column " + named_from.column->getName() + " of first argument of function " + Name::name,
ErrorCodes::ILLEGAL_COLUMN);
}
if (const ColVecFrom * col_from = checkAndGetColumn<ColVecFrom>(named_from.column.get()))
{
typename ColVecTo::MutablePtr col_to = nullptr;
@ -124,13 +131,16 @@ struct ConvertImpl
vec_to.resize(size);
for (size_t i = 0; i < size; ++i)
{
if constexpr (IsDataTypeDecimal<FromDataType> || IsDataTypeDecimal<ToDataType>)
{
if constexpr (IsDataTypeDecimal<FromDataType> && IsDataTypeDecimal<ToDataType>)
vec_to[i] = convertDecimals<FromDataType, ToDataType>(vec_from[i], vec_from.getScale(), vec_to.getScale());
else if constexpr (IsDataTypeDecimal<FromDataType>)
else if constexpr (IsDataTypeDecimal<FromDataType> && IsDataTypeNumber<ToDataType>)
vec_to[i] = convertFromDecimal<FromDataType, ToDataType>(vec_from[i], vec_from.getScale());
else if constexpr (IsDataTypeDecimal<ToDataType>)
else if constexpr (IsDataTypeNumber<FromDataType> && IsDataTypeDecimal<ToDataType>)
vec_to[i] = convertToDecimal<FromDataType, ToDataType>(vec_from[i], vec_to.getScale());
}
else
vec_to[i] = static_cast<ToFieldType>(vec_from[i]);
}

123
dbms/src/Functions/FunctionsDateTime.cpp
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@ -1,123 +0,0 @@
#include <Functions/FunctionFactory.h>
#include <Functions/FunctionsDateTime.h>
namespace DB
{
static std::string extractTimeZoneNameFromColumn(const IColumn & column)
{
const ColumnConst * time_zone_column = checkAndGetColumnConst<ColumnString>(&column);
if (!time_zone_column)
throw Exception("Illegal column " + column.getName()
+ " of time zone argument of function, must be constant string",
ErrorCodes::ILLEGAL_COLUMN);
return time_zone_column->getValue<String>();
}
std::string extractTimeZoneNameFromFunctionArguments(const ColumnsWithTypeAndName & arguments, size_t time_zone_arg_num, size_t datetime_arg_num)
{
/// Explicit time zone may be passed in last argument.
if (arguments.size() == time_zone_arg_num + 1 && arguments[time_zone_arg_num].column)
{
return extractTimeZoneNameFromColumn(*arguments[time_zone_arg_num].column);
}
else
{
if (!arguments.size())
return {};
/// If time zone is attached to an argument of type DateTime.
if (const DataTypeDateTime * type = checkAndGetDataType<DataTypeDateTime>(arguments[datetime_arg_num].type.get()))
return type->getTimeZone().getTimeZone();
return {};
}
}
const DateLUTImpl & extractTimeZoneFromFunctionArguments(Block & block, const ColumnNumbers & arguments, size_t time_zone_arg_num, size_t datetime_arg_num)
{
if (arguments.size() == time_zone_arg_num + 1)
return DateLUT::instance(extractTimeZoneNameFromColumn(*block.getByPosition(arguments[time_zone_arg_num]).column));
else
{
if (!arguments.size())
return DateLUT::instance();
/// If time zone is attached to an argument of type DateTime.
if (const DataTypeDateTime * type = checkAndGetDataType<DataTypeDateTime>(block.getByPosition(arguments[datetime_arg_num]).type.get()))
return type->getTimeZone();
return DateLUT::instance();
}
}
void registerFunctionsDateTime(FunctionFactory & factory)
{
factory.registerFunction<FunctionToYear>();
factory.registerFunction<FunctionToQuarter>();
factory.registerFunction<FunctionToMonth>();
factory.registerFunction<FunctionToDayOfMonth>();
factory.registerFunction<FunctionToDayOfWeek>();
factory.registerFunction<FunctionToDayOfYear>();
factory.registerFunction<FunctionToHour>();
factory.registerFunction<FunctionToMinute>();
factory.registerFunction<FunctionToSecond>();
factory.registerFunction<FunctionToStartOfDay>();
factory.registerFunction<FunctionToMonday>();
factory.registerFunction<FunctionToISOWeek>();
factory.registerFunction<FunctionToISOYear>();
factory.registerFunction<FunctionToStartOfMonth>();
factory.registerFunction<FunctionToStartOfQuarter>();
factory.registerFunction<FunctionToStartOfYear>();
factory.registerFunction<FunctionToStartOfMinute>();
factory.registerFunction<FunctionToStartOfFiveMinute>();
factory.registerFunction<FunctionToStartOfFifteenMinutes>();
factory.registerFunction<FunctionToStartOfHour>();
factory.registerFunction<FunctionToStartOfISOYear>();
factory.registerFunction<FunctionToRelativeYearNum>();
factory.registerFunction<FunctionToRelativeQuarterNum>();
factory.registerFunction<FunctionToRelativeMonthNum>();
factory.registerFunction<FunctionToRelativeWeekNum>();
factory.registerFunction<FunctionToRelativeDayNum>();
factory.registerFunction<FunctionToRelativeHourNum>();
factory.registerFunction<FunctionToRelativeMinuteNum>();
factory.registerFunction<FunctionToRelativeSecondNum>();
factory.registerFunction<FunctionToTime>();
factory.registerFunction<FunctionNow>(FunctionFactory::CaseInsensitive);
factory.registerFunction<FunctionToday>();
factory.registerFunction<FunctionYesterday>();
factory.registerFunction<FunctionTimeSlot>();
factory.registerFunction<FunctionTimeSlots>();
factory.registerFunction<FunctionToYYYYMM>();
factory.registerFunction<FunctionToYYYYMMDD>();
factory.registerFunction<FunctionToYYYYMMDDhhmmss>();
factory.registerFunction<FunctionAddSeconds>();
factory.registerFunction<FunctionAddMinutes>();
factory.registerFunction<FunctionAddHours>();
factory.registerFunction<FunctionAddDays>();
factory.registerFunction<FunctionAddWeeks>();
factory.registerFunction<FunctionAddMonths>();
factory.registerFunction<FunctionAddYears>();
factory.registerFunction<FunctionSubtractSeconds>();
factory.registerFunction<FunctionSubtractMinutes>();
factory.registerFunction<FunctionSubtractHours>();
factory.registerFunction<FunctionSubtractDays>();
factory.registerFunction<FunctionSubtractWeeks>();
factory.registerFunction<FunctionSubtractMonths>();
factory.registerFunction<FunctionSubtractYears>();
factory.registerFunction<FunctionDateDiff>(FunctionFactory::CaseInsensitive);
factory.registerFunction<FunctionToTimeZone>();
factory.registerFunction<FunctionFormatDateTime>();
}
}

2166
dbms/src/Functions/FunctionsDateTime.h
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18
dbms/src/Functions/addDays.cpp Normal file
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@ -0,0 +1,18 @@
#include <Functions/IFunction.h>
#include <Functions/FunctionFactory.h>
#include <Functions/FunctionDateOrDateTimeAddInterval.h>
namespace DB
{
using FunctionAddDays = FunctionDateOrDateTimeAddInterval<AddDaysImpl>;
void registerFunctionAddDays(FunctionFactory & factory)
{
factory.registerFunction<FunctionAddDays>();
}
}

18
dbms/src/Functions/addHours.cpp Normal file
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@ -0,0 +1,18 @@
#include <Functions/IFunction.h>
#include <Functions/FunctionFactory.h>
#include <Functions/FunctionDateOrDateTimeAddInterval.h>
namespace DB
{
using FunctionAddHours = FunctionDateOrDateTimeAddInterval<AddHoursImpl>;
void registerFunctionAddHours(FunctionFactory & factory)
{
factory.registerFunction<FunctionAddHours>();
}
}

18
dbms/src/Functions/addMinutes.cpp Normal file
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@ -0,0 +1,18 @@
#include <Functions/IFunction.h>
#include <Functions/FunctionFactory.h>
#include <Functions/FunctionDateOrDateTimeAddInterval.h>
namespace DB
{
using FunctionAddMinutes = FunctionDateOrDateTimeAddInterval<AddMinutesImpl>;
void registerFunctionAddMinutes(FunctionFactory & factory)
{
factory.registerFunction<FunctionAddMinutes>();
}
}

18
dbms/src/Functions/addMonths.cpp Normal file
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@ -0,0 +1,18 @@
#include <Functions/IFunction.h>
#include <Functions/FunctionFactory.h>
#include <Functions/FunctionDateOrDateTimeAddInterval.h>
namespace DB
{
using FunctionAddMonths = FunctionDateOrDateTimeAddInterval<AddMonthsImpl>;
void registerFunctionAddMonths(FunctionFactory & factory)
{
factory.registerFunction<FunctionAddMonths>();
}
}

18
dbms/src/Functions/addSeconds.cpp Normal file
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@ -0,0 +1,18 @@
#include <Functions/IFunction.h>
#include <Functions/FunctionFactory.h>
#include <Functions/FunctionDateOrDateTimeAddInterval.h>
namespace DB
{
using FunctionAddSeconds = FunctionDateOrDateTimeAddInterval<AddSecondsImpl>;
void registerFunctionAddSeconds(FunctionFactory & factory)
{
factory.registerFunction<FunctionAddSeconds>();
}
}

18
dbms/src/Functions/addWeeks.cpp Normal file
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@ -0,0 +1,18 @@
#include <Functions/IFunction.h>
#include <Functions/FunctionFactory.h>
#include <Functions/FunctionDateOrDateTimeAddInterval.h>
namespace DB
{
using FunctionAddWeeks = FunctionDateOrDateTimeAddInterval<AddWeeksImpl>;
void registerFunctionAddWeeks(FunctionFactory & factory)
{
factory.registerFunction<FunctionAddWeeks>();
}
}

18
dbms/src/Functions/addYears.cpp Normal file
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@ -0,0 +1,18 @@
#include <Functions/IFunction.h>
#include <Functions/FunctionFactory.h>
#include <Functions/FunctionDateOrDateTimeAddInterval.h>
namespace DB
{
using FunctionAddYears = FunctionDateOrDateTimeAddInterval<AddYearsImpl>;
void registerFunctionAddYears(FunctionFactory & factory)
{
factory.registerFunction<FunctionAddYears>();
}
}

220
dbms/src/Functions/dateDiff.cpp Normal file
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@ -0,0 +1,220 @@
#include <DataTypes/DataTypeDateTime.h>
#include <DataTypes/DataTypesNumber.h>
#include <Columns/ColumnString.h>
#include <Columns/ColumnsNumber.h>
#include <Functions/IFunction.h>
#include <Functions/FunctionHelpers.h>
#include <Functions/FunctionFactory.h>
#include <Functions/extractTimeZoneFromFunctionArguments.h>
#include <Functions/DateTimeTransforms.h>
#include <IO/WriteHelpers.h>
#include <common/find_first_symbols.h>
#include <type_traits>
namespace DB
{
namespace ErrorCodes
{
extern const int NUMBER_OF_ARGUMENTS_DOESNT_MATCH;
extern const int ILLEGAL_TYPE_OF_ARGUMENT;
extern const int ILLEGAL_COLUMN;
extern const int BAD_ARGUMENTS;
}
/** dateDiff('unit', t1, t2, [timezone])
* t1 and t2 can be Date or DateTime
*
* If timezone is specified, it applied to both arguments.
* If not, timezones from datatypes t1 and t2 are used.
* If that timezones are not the same, the result is unspecified.
*
* Timezone matters because days can have different length.
*/
class FunctionDateDiff : public IFunction
{
public:
static constexpr auto name = "dateDiff";
static FunctionPtr create(const Context &) { return std::make_shared<FunctionDateDiff>(); }
String getName() const override
{
return name;
}
bool isVariadic() const override { return true; }
size_t getNumberOfArguments() const override { return 0; }
DataTypePtr getReturnTypeImpl(const DataTypes & arguments) const override
{
if (arguments.size() != 3 && arguments.size() != 4)
throw Exception("Number of arguments for function " + getName() + " doesn't match: passed "
+ toString(arguments.size()) + ", should be 3 or 4",
ErrorCodes::NUMBER_OF_ARGUMENTS_DOESNT_MATCH);
if (!isString(arguments[0]))
throw Exception("First argument for function " + getName() + " (unit) must be String",
ErrorCodes::ILLEGAL_TYPE_OF_ARGUMENT);
if (!isDateOrDateTime(arguments[1]))
throw Exception("Second argument for function " + getName() + " must be Date or DateTime",
ErrorCodes::ILLEGAL_TYPE_OF_ARGUMENT);
if (!isDateOrDateTime(arguments[2]))
throw Exception("Third argument for function " + getName() + " must be Date or DateTime",
ErrorCodes::ILLEGAL_TYPE_OF_ARGUMENT);
if (arguments.size() == 4 && !isString(arguments[3]))
throw Exception("Fourth argument for function " + getName() + " (timezone) must be String",
ErrorCodes::ILLEGAL_TYPE_OF_ARGUMENT);
return std::make_shared<DataTypeInt64>();
}
bool useDefaultImplementationForConstants() const override { return true; }
ColumnNumbers getArgumentsThatAreAlwaysConstant() const override { return {0, 3}; }
void executeImpl(Block & block, const ColumnNumbers & arguments, size_t result, size_t input_rows_count) override
{
auto * unit_column = checkAndGetColumnConst<ColumnString>(block.getByPosition(arguments[0]).column.get());
if (!unit_column)
throw Exception("First argument for function " + getName() + " must be constant String", ErrorCodes::ILLEGAL_COLUMN);
String unit = Poco::toLower(unit_column->getValue<String>());
const IColumn & x = *block.getByPosition(arguments[1]).column;
const IColumn & y = *block.getByPosition(arguments[2]).column;
size_t rows = input_rows_count;
auto res = ColumnInt64::create(rows);
const DateLUTImpl & timezone_x = extractTimeZoneFromFunctionArguments(block, arguments, 3, 1);
const DateLUTImpl & timezone_y = extractTimeZoneFromFunctionArguments(block, arguments, 3, 2);
if (unit == "year" || unit == "yy" || unit == "yyyy")
dispatchForColumns<ToRelativeYearNumImpl>(x, y, timezone_x, timezone_y, res->getData());
else if (unit == "quarter" || unit == "qq" || unit == "q")
dispatchForColumns<ToRelativeQuarterNumImpl>(x, y, timezone_x, timezone_y, res->getData());
else if (unit == "month" || unit == "mm" || unit == "m")
dispatchForColumns<ToRelativeMonthNumImpl>(x, y, timezone_x, timezone_y, res->getData());
else if (unit == "week" || unit == "wk" || unit == "ww")
dispatchForColumns<ToRelativeWeekNumImpl>(x, y, timezone_x, timezone_y, res->getData());
else if (unit == "day" || unit == "dd" || unit == "d")
dispatchForColumns<ToRelativeDayNumImpl>(x, y, timezone_x, timezone_y, res->getData());
else if (unit == "hour" || unit == "hh")
dispatchForColumns<ToRelativeHourNumImpl>(x, y, timezone_x, timezone_y, res->getData());
else if (unit == "minute" || unit == "mi" || unit == "n")
dispatchForColumns<ToRelativeMinuteNumImpl>(x, y, timezone_x, timezone_y, res->getData());
else if (unit == "second" || unit == "ss" || unit == "s")
dispatchForColumns<ToRelativeSecondNumImpl>(x, y, timezone_x, timezone_y, res->getData());
else
throw Exception("Function " + getName() + " does not support '" + unit + "' unit", ErrorCodes::BAD_ARGUMENTS);
block.getByPosition(result).column = std::move(res);
}
private:
template <typename Transform>
void dispatchForColumns(
const IColumn & x, const IColumn & y,
const DateLUTImpl & timezone_x, const DateLUTImpl & timezone_y,
ColumnInt64::Container & result)
{
if (auto * x_vec = checkAndGetColumn<ColumnUInt16>(&x))
dispatchForSecondColumn<Transform>(*x_vec, y, timezone_x, timezone_y, result);
else if (auto * x_vec = checkAndGetColumn<ColumnUInt32>(&x))
dispatchForSecondColumn<Transform>(*x_vec, y, timezone_x, timezone_y, result);
else if (auto * x_const = checkAndGetColumnConst<ColumnUInt16>(&x))
dispatchConstForSecondColumn<Transform>(x_const->getValue<UInt16>(), y, timezone_x, timezone_y, result);
else if (auto * x_const = checkAndGetColumnConst<ColumnUInt32>(&x))
dispatchConstForSecondColumn<Transform>(x_const->getValue<UInt32>(), y, timezone_x, timezone_y, result);
else
throw Exception("Illegal column for first argument of function " + getName() + ", must be Date or DateTime", ErrorCodes::ILLEGAL_COLUMN);
}
template <typename Transform, typename T1>
void dispatchForSecondColumn(
const ColumnVector<T1> & x, const IColumn & y,
const DateLUTImpl & timezone_x, const DateLUTImpl & timezone_y,
ColumnInt64::Container & result)
{
if (auto * y_vec = checkAndGetColumn<ColumnUInt16>(&y))
vector_vector<Transform>(x, *y_vec, timezone_x, timezone_y, result);
else if (auto * y_vec = checkAndGetColumn<ColumnUInt32>(&y))
vector_vector<Transform>(x, *y_vec, timezone_x, timezone_y, result);
else if (auto * y_const = checkAndGetColumnConst<ColumnUInt16>(&y))
vector_constant<Transform>(x, y_const->getValue<UInt16>(), timezone_x, timezone_y, result);
else if (auto * y_const = checkAndGetColumnConst<ColumnUInt32>(&y))
vector_constant<Transform>(x, y_const->getValue<UInt32>(), timezone_x, timezone_y, result);
else
throw Exception("Illegal column for second argument of function " + getName() + ", must be Date or DateTime", ErrorCodes::ILLEGAL_COLUMN);
}
template <typename Transform, typename T1>
void dispatchConstForSecondColumn(
T1 x, const IColumn & y,
const DateLUTImpl & timezone_x, const DateLUTImpl & timezone_y,
ColumnInt64::Container & result)
{
if (auto * y_vec = checkAndGetColumn<ColumnUInt16>(&y))
constant_vector<Transform>(x, *y_vec, timezone_x, timezone_y, result);
else if (auto * y_vec = checkAndGetColumn<ColumnUInt32>(&y))
constant_vector<Transform>(x, *y_vec, timezone_x, timezone_y, result);
else
throw Exception("Illegal column for second argument of function " + getName() + ", must be Date or DateTime", ErrorCodes::ILLEGAL_COLUMN);
}
template <typename Transform, typename T1, typename T2>
void vector_vector(
const ColumnVector<T1> & x, const ColumnVector<T2> & y,
const DateLUTImpl & timezone_x, const DateLUTImpl & timezone_y,
ColumnInt64::Container & result)
{
const auto & x_data = x.getData();
const auto & y_data = y.getData();
for (size_t i = 0, size = x.size(); i < size; ++i)
result[i] = calculate<Transform>(x_data[i], y_data[i], timezone_x, timezone_y);
}
template <typename Transform, typename T1, typename T2>
void vector_constant(
const ColumnVector<T1> & x, T2 y,
const DateLUTImpl & timezone_x, const DateLUTImpl & timezone_y,
ColumnInt64::Container & result)
{
const auto & x_data = x.getData();
for (size_t i = 0, size = x.size(); i < size; ++i)
result[i] = calculate<Transform>(x_data[i], y, timezone_x, timezone_y);
}
template <typename Transform, typename T1, typename T2>
void constant_vector(
T1 x, const ColumnVector<T2> & y,
const DateLUTImpl & timezone_x, const DateLUTImpl & timezone_y,
ColumnInt64::Container & result)
{
const auto & y_data = y.getData();
for (size_t i = 0, size = y.size(); i < size; ++i)
result[i] = calculate<Transform>(x, y_data[i], timezone_x, timezone_y);
}
template <typename Transform, typename T1, typename T2>
Int64 calculate(T1 x, T2 y, const DateLUTImpl & timezone_x, const DateLUTImpl & timezone_y)
{
return Int64(Transform::execute(y, timezone_y))
- Int64(Transform::execute(x, timezone_x));
}
};
void registerFunctionDateDiff(FunctionFactory & factory)
{
factory.registerFunction<FunctionDateDiff>(FunctionFactory::CaseInsensitive);
}
}

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#include <Functions/extractTimeZoneFromFunctionArguments.h>
#include <Functions/FunctionHelpers.h>
#include <Core/Block.h>
#include <DataTypes/DataTypeDateTime.h>
#include <Columns/ColumnString.h>
#include <common/DateLUT.h>
namespace DB
{
namespace ErrorCodes
{
extern const int ILLEGAL_COLUMN;
}
static std::string extractTimeZoneNameFromColumn(const IColumn & column)
{
const ColumnConst * time_zone_column = checkAndGetColumnConst<ColumnString>(&column);
if (!time_zone_column)
throw Exception("Illegal column " + column.getName()
+ " of time zone argument of function, must be constant string",
ErrorCodes::ILLEGAL_COLUMN);
return time_zone_column->getValue<String>();
}
std::string extractTimeZoneNameFromFunctionArguments(const ColumnsWithTypeAndName & arguments, size_t time_zone_arg_num, size_t datetime_arg_num)
{
/// Explicit time zone may be passed in last argument.
if (arguments.size() == time_zone_arg_num + 1 && arguments[time_zone_arg_num].column)
{
return extractTimeZoneNameFromColumn(*arguments[time_zone_arg_num].column);
}
else
{
if (!arguments.size())
return {};
/// If time zone is attached to an argument of type DateTime.
if (const DataTypeDateTime * type = checkAndGetDataType<DataTypeDateTime>(arguments[datetime_arg_num].type.get()))
return type->getTimeZone().getTimeZone();
return {};
}
}
const DateLUTImpl & extractTimeZoneFromFunctionArguments(Block & block, const ColumnNumbers & arguments, size_t time_zone_arg_num, size_t datetime_arg_num)
{
if (arguments.size() == time_zone_arg_num + 1)
return DateLUT::instance(extractTimeZoneNameFromColumn(*block.getByPosition(arguments[time_zone_arg_num]).column));
else
{
if (!arguments.size())
return DateLUT::instance();
/// If time zone is attached to an argument of type DateTime.
if (const DataTypeDateTime * type = checkAndGetDataType<DataTypeDateTime>(block.getByPosition(arguments[datetime_arg_num]).type.get()))
return type->getTimeZone();
return DateLUT::instance();
}
}
}

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#include <string>
#include <Core/ColumnNumbers.h>
#include <Core/ColumnsWithTypeAndName.h>
class DateLUTImpl;
namespace DB
{
class Block;
/// Determine working timezone either from optional argument with time zone name or from time zone in DateTime type of argument.
std::string extractTimeZoneNameFromFunctionArguments(const ColumnsWithTypeAndName & arguments, size_t time_zone_arg_num, size_t datetime_arg_num);
const DateLUTImpl & extractTimeZoneFromFunctionArguments(Block & block, const ColumnNumbers & arguments, size_t time_zone_arg_num, size_t datetime_arg_num);
}

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#include <DataTypes/DataTypeString.h>
#include <Columns/ColumnString.h>
#include <Functions/IFunction.h>
#include <Functions/FunctionHelpers.h>
#include <Functions/FunctionFactory.h>
#include <Functions/DateTimeTransforms.h>
#include <Functions/extractTimeZoneFromFunctionArguments.h>
#include <IO/WriteHelpers.h>
#include <common/DateLUTImpl.h>
#include <common/find_first_symbols.h>
#include <type_traits>
namespace DB
{
namespace ErrorCodes
{
extern const int NUMBER_OF_ARGUMENTS_DOESNT_MATCH;
extern const int ILLEGAL_TYPE_OF_ARGUMENT;
extern const int NOT_IMPLEMENTED;
extern const int ILLEGAL_COLUMN;
extern const int BAD_ARGUMENTS;
}
/** formatDateTime(time, 'pattern')
* Performs formatting of time, according to provided pattern.
*
* This function is optimized with an assumption, that the resulting strings are fixed width.
* (This assumption is fulfilled for currently supported formatting options).
*
* It is implemented in two steps.
* At first step, it creates a pattern of zeros, literal characters, whitespaces, etc.
* and quickly fills resulting charater array (string column) with this pattern.
* At second step, it walks across the resulting character array and modifies/replaces specific charaters,
* by calling some functions by pointers and shifting cursor by specified amount.
*
* Advantages:
* - memcpy is mostly unrolled;
* - low number of arithmetic ops due to pre-filled pattern;
* - for somewhat reason, function by pointer call is faster than switch/case.
*
* Possible further optimization options:
* - slightly interleave first and second step for better cache locality
* (but it has no sense when character array fits in L1d cache);
* - avoid indirect function calls and inline functions with JIT compilation.
*
* Performance on Intel(R) Core(TM) i7-6700 CPU @ 3.40GHz:
*
* WITH formatDateTime(now() + number, '%H:%M:%S') AS x SELECT count() FROM system.numbers WHERE NOT ignore(x);
* - 97 million rows per second per core;
*
* WITH formatDateTime(toDateTime('2018-01-01 00:00:00') + number, '%F %T') AS x SELECT count() FROM system.numbers WHERE NOT ignore(x)
* - 71 million rows per second per core;
*
* select count() from (select formatDateTime(t, '%m/%d/%Y %H:%M:%S') from (select toDateTime('2018-01-01 00:00:00')+number as t from numbers(100000000)));
* - 53 million rows per second per core;
*
* select count() from (select formatDateTime(t, 'Hello %Y World') from (select toDateTime('2018-01-01 00:00:00')+number as t from numbers(100000000)));
* - 138 million rows per second per core;
*
* PS. We can make this function to return FixedString. Currently it returns String.
*/
class FunctionFormatDateTime : public IFunction
{
private:
/// Time is either UInt32 for DateTime or UInt16 for Date.
template <typename Time>
class Action
{
public:
using Func = void (*)(char *, Time, const DateLUTImpl &);
Func func;
size_t shift;
Action(Func func, size_t shift = 0) : func(func), shift(shift) {}
void perform(char *& target, Time source, const DateLUTImpl & timezone)
{
func(target, source, timezone);
target += shift;
}
private:
template <typename T>
static inline void writeNumber2(char * p, T v)
{
static const char digits[201] =
"00010203040506070809"
"10111213141516171819"
"20212223242526272829"
"30313233343536373839"
"40414243444546474849"
"50515253545556575859"
"60616263646566676869"
"70717273747576777879"
"80818283848586878889"
"90919293949596979899";
memcpy(p, &digits[v * 2], 2);
}
template <typename T>
static inline void writeNumber3(char * p, T v)
{
writeNumber2(p, v / 10);
p[2] += v % 10;
}
template <typename T>
static inline void writeNumber4(char * p, T v)
{
writeNumber2(p, v / 100);
writeNumber2(p + 2, v % 100);
}
public:
static void noop(char *, Time, const DateLUTImpl &)
{
}
static void century(char * target, Time source, const DateLUTImpl & timezone)
{
auto year = ToYearImpl::execute(source, timezone);
auto century = year / 100;
writeNumber2(target, century);
}
static void dayOfMonth(char * target, Time source, const DateLUTImpl & timezone)
{
writeNumber2(target, ToDayOfMonthImpl::execute(source, timezone));
}
static void americanDate(char * target, Time source, const DateLUTImpl & timezone)
{
writeNumber2(target, ToMonthImpl::execute(source, timezone));
writeNumber2(target + 3, ToDayOfMonthImpl::execute(source, timezone));
writeNumber2(target + 6, ToYearImpl::execute(source, timezone) % 100);
}
static void dayOfMonthSpacePadded(char * target, Time source, const DateLUTImpl & timezone)
{
auto day = ToDayOfMonthImpl::execute(source, timezone);
if (day < 10)
target[1] += day;
else
writeNumber2(target, day);
}
static void ISO8601Date(char * target, Time source, const DateLUTImpl & timezone)
{
writeNumber4(target, ToYearImpl::execute(source, timezone));
writeNumber2(target + 5, ToMonthImpl::execute(source, timezone));
writeNumber2(target + 8, ToDayOfMonthImpl::execute(source, timezone));
}
static void dayOfYear(char * target, Time source, const DateLUTImpl & timezone)
{
writeNumber3(target, ToDayOfYearImpl::execute(source, timezone));
}
static void month(char * target, Time source, const DateLUTImpl & timezone)
{
writeNumber2(target, ToMonthImpl::execute(source, timezone));
}
static void dayOfWeek(char * target, Time source, const DateLUTImpl & timezone)
{
*target += ToDayOfWeekImpl::execute(source, timezone);
}
static void dayOfWeek0To6(char * target, Time source, const DateLUTImpl & timezone)
{
auto day = ToDayOfWeekImpl::execute(source, timezone);
*target += (day == 7 ? 0 : day);
}
static void ISO8601Week(char * target, Time source, const DateLUTImpl & timezone)
{
writeNumber2(target, ToISOWeekImpl::execute(source, timezone));
}
static void year2(char * target, Time source, const DateLUTImpl & timezone)
{
writeNumber2(target, ToYearImpl::execute(source, timezone) % 100);
}
static void year4(char * target, Time source, const DateLUTImpl & timezone)
{
writeNumber4(target, ToYearImpl::execute(source, timezone));
}
static void hour24(char * target, Time source, const DateLUTImpl & timezone)
{
writeNumber2(target, ToHourImpl::execute(source, timezone));
}
static void hour12(char * target, Time source, const DateLUTImpl & timezone)
{
auto x = ToHourImpl::execute(source, timezone);
writeNumber2(target, x == 0 ? 12 : (x > 12 ? x - 12 : x));
}
static void minute(char * target, Time source, const DateLUTImpl & timezone)
{
writeNumber2(target, ToMinuteImpl::execute(source, timezone));
}
static void AMPM(char * target, Time source, const DateLUTImpl & timezone)
{
auto hour = ToHourImpl::execute(source, timezone);
if (hour >= 12)
*target = 'P';
}
static void hhmm24(char * target, Time source, const DateLUTImpl & timezone)
{
writeNumber2(target, ToHourImpl::execute(source, timezone));
writeNumber2(target + 3, ToMinuteImpl::execute(source, timezone));
}
static void second(char * target, Time source, const DateLUTImpl & timezone)
{
writeNumber2(target, ToSecondImpl::execute(source, timezone));
}
static void ISO8601Time(char * target, Time source, const DateLUTImpl & timezone)
{
writeNumber2(target, ToHourImpl::execute(source, timezone));
writeNumber2(target + 3, ToMinuteImpl::execute(source, timezone));
writeNumber2(target + 6, ToSecondImpl::execute(source, timezone));
}
};
public:
static constexpr auto name = "formatDateTime";
static FunctionPtr create(const Context &) { return std::make_shared<FunctionFormatDateTime>(); }
String getName() const override
{
return name;
}
bool useDefaultImplementationForConstants() const override { return true; }
ColumnNumbers getArgumentsThatAreAlwaysConstant() const override { return {1, 2}; }
bool isVariadic() const override { return true; }
size_t getNumberOfArguments() const override { return 0; }
DataTypePtr getReturnTypeImpl(const ColumnsWithTypeAndName & arguments) const override
{
if (arguments.size() != 2 && arguments.size() != 3)
throw Exception("Number of arguments for function " + getName() + " doesn't match: passed "
+ toString(arguments.size()) + ", should be 2 or 3",
ErrorCodes::NUMBER_OF_ARGUMENTS_DOESNT_MATCH);
if (!WhichDataType(arguments[0].type).isDateOrDateTime())
throw Exception("Illegal type " + arguments[0].type->getName() + " of 1 argument of function " + getName() +
". Should be a date or a date with time", ErrorCodes::ILLEGAL_TYPE_OF_ARGUMENT);
if (!WhichDataType(arguments[1].type).isString())
throw Exception("Illegal type " + arguments[1].type->getName() + " of 2 argument of function " + getName() + ". Must be String.",
ErrorCodes::ILLEGAL_TYPE_OF_ARGUMENT);
if (arguments.size() == 3)
{
if (!WhichDataType(arguments[2].type).isString())
throw Exception("Illegal type " + arguments[2].type->getName() + " of 3 argument of function " + getName() + ". Must be String.",
ErrorCodes::ILLEGAL_TYPE_OF_ARGUMENT);
}
return std::make_shared<DataTypeString>();
}
void executeImpl(Block & block, const ColumnNumbers & arguments, size_t result, size_t /*input_rows_count*/) override
{
if (!executeType<UInt32>(block, arguments, result)
&& !executeType<UInt16>(block, arguments, result))
throw Exception("Illegal column " + block.getByPosition(arguments[0]).column->getName()
+ " of function " + getName() + ", must be Date or DateTime",
ErrorCodes::ILLEGAL_COLUMN);
}
template <typename T>
bool executeType(Block & block, const ColumnNumbers & arguments, size_t result)
{
if (auto * times = checkAndGetColumn<ColumnVector<T>>(block.getByPosition(arguments[0]).column.get()))
{
const ColumnConst * pattern_column = checkAndGetColumnConst<ColumnString>(block.getByPosition(arguments[1]).column.get());
if (!pattern_column)
throw Exception("Illegal column " + block.getByPosition(arguments[1]).column->getName()
+ " of second ('format') argument of function " + getName()
+ ". Must be constant string.",
ErrorCodes::ILLEGAL_COLUMN);
String pattern = pattern_column->getValue<String>();
std::vector<Action<T>> instructions;
String pattern_to_fill = parsePattern(pattern, instructions);
size_t result_size = pattern_to_fill.size();
const DateLUTImpl * time_zone_tmp = nullptr;
if (arguments.size() == 3)
time_zone_tmp = &extractTimeZoneFromFunctionArguments(block, arguments, 2, 0);
else
time_zone_tmp = &DateLUT::instance();
const DateLUTImpl & time_zone = *time_zone_tmp;
const typename ColumnVector<T>::Container & vec = times->getData();
auto col_res = ColumnString::create();
auto & dst_data = col_res->getChars();
auto & dst_offsets = col_res->getOffsets();
dst_data.resize(vec.size() * (result_size + 1));
dst_offsets.resize(vec.size());
/// Fill result with literals.
{
UInt8 * begin = dst_data.data();
UInt8 * end = begin + dst_data.size();
UInt8 * pos = begin;
if (pos < end)
{
memcpy(pos, pattern_to_fill.data(), result_size + 1); /// With zero terminator.
pos += result_size + 1;
}
/// Fill by copying exponential growing ranges.
while (pos < end)
{
size_t bytes_to_copy = std::min(pos - begin, end - pos);
memcpy(pos, begin, bytes_to_copy);
pos += bytes_to_copy;
}
}
auto begin = reinterpret_cast<char *>(dst_data.data());
auto pos = begin;
for (size_t i = 0; i < vec.size(); ++i)
{
for(auto & instruction : instructions)
instruction.perform(pos, vec[i], time_zone);
dst_offsets[i] = pos - begin;
}
dst_data.resize(pos - begin);
block.getByPosition(result).column = std::move(col_res);
return true;
}
return false;
}
template <typename T>
String parsePattern(const String & pattern, std::vector<Action<T>> & instructions) const
{
String result;
const char * pos = pattern.data();
const char * end = pos + pattern.size();
/// Add shift to previous action; or if there were none, add noop action with shift.
auto addShift = [&](size_t amount)
{
if (instructions.empty())
instructions.emplace_back(&Action<T>::noop);
instructions.back().shift += amount;
};
/// If the argument was DateTime, add instruction for printing. If it was date, just shift (the buffer is pre-filled with default values).
auto addInstructionOrShift = [&](typename Action<T>::Func func [[maybe_unused]], size_t shift)
{
if constexpr (std::is_same_v<T, UInt32>)
instructions.emplace_back(func, shift);
else
addShift(shift);
};
while (true)
{
const char * percent_pos = find_first_symbols<'%'>(pos, end);
if (percent_pos < end)
{
if (pos < percent_pos)
{
result.append(pos, percent_pos);
addShift(percent_pos - pos);
}
pos = percent_pos + 1;
if (pos >= end)
throw Exception("Sign '%' is the last in pattern, if you need it, use '%%'", ErrorCodes::BAD_ARGUMENTS);
switch (*pos)
{
// Year, divided by 100, zero-padded
case 'C':
instructions.emplace_back(&Action<T>::century, 2);
result.append("00");
break;
// Day of month, zero-padded (01-31)
case 'd':
instructions.emplace_back(&Action<T>::dayOfMonth, 2);
result.append("00");
break;
// Short MM/DD/YY date, equivalent to %m/%d/%y
case 'D':
instructions.emplace_back(&Action<T>::americanDate, 8);
result.append("00/00/00");
break;
// Day of month, space-padded ( 1-31) 23
case 'e':
instructions.emplace_back(&Action<T>::dayOfMonthSpacePadded, 2);
result.append(" 0");
break;
// Short YYYY-MM-DD date, equivalent to %Y-%m-%d 2001-08-23
case 'F':
instructions.emplace_back(&Action<T>::ISO8601Date, 10);
result.append("0000-00-00");
break;
// Day of the year (001-366) 235
case 'j':
instructions.emplace_back(&Action<T>::dayOfYear, 3);
result.append("000");
break;
// Month as a decimal number (01-12)
case 'm':
instructions.emplace_back(&Action<T>::month, 2);
result.append("00");
break;
// ISO 8601 weekday as number with Monday as 1 (1-7)
case 'u':
instructions.emplace_back(&Action<T>::dayOfWeek, 1);
result.append("0");
break;
// ISO 8601 week number (01-53)
case 'V':
instructions.emplace_back(&Action<T>::ISO8601Week, 2);
result.append("00");
break;
// Weekday as a decimal number with Sunday as 0 (0-6) 4
case 'w':
instructions.emplace_back(&Action<T>::dayOfWeek0To6, 1);
result.append("0");
break;
// Two digits year
case 'y':
instructions.emplace_back(&Action<T>::year2, 2);
result.append("00");
break;
// Four digits year
case 'Y':
instructions.emplace_back(&Action<T>::year4, 4);
result.append("0000");
break;
/// Time components. If the argument is Date, not a DateTime, then this components will have default value.
// Minute (00-59)
case 'M':
addInstructionOrShift(&Action<T>::minute, 2);
result.append("00");
break;
// AM or PM
case 'p':
addInstructionOrShift(&Action<T>::AMPM, 2);
result.append("AM");
break;
// 24-hour HH:MM time, equivalent to %H:%M 14:55
case 'R':
addInstructionOrShift(&Action<T>::hhmm24, 5);
result.append("00:00");
break;
// Seconds
case 'S':
addInstructionOrShift(&Action<T>::second, 2);
result.append("00");
break;
// ISO 8601 time format (HH:MM:SS), equivalent to %H:%M:%S 14:55:02
case 'T':
addInstructionOrShift(&Action<T>::ISO8601Time, 8);
result.append("00:00:00");
break;
// Hour in 24h format (00-23)
case 'H':
addInstructionOrShift(&Action<T>::hour24, 2);
result.append("00");
break;
// Hour in 12h format (01-12)
case 'I':
addInstructionOrShift(&Action<T>::hour12, 2);
result.append("12");
break;
/// Escaped literal characters.
case '%':
result += '%';
addShift(1);
break;
case 't':
result += '\t';
addShift(1);
break;
case 'n':
result += '\n';
addShift(1);
break;
// Unimplemented
case 'U': [[fallthrough]];
case 'W':
throw Exception("Wrong pattern '" + pattern + "', symbol '" + *pos + " is not implemented ' for function " + getName(),
ErrorCodes::NOT_IMPLEMENTED);
default:
throw Exception(
"Wrong pattern '" + pattern + "', unexpected symbol '" + *pos + "' for function " + getName(), ErrorCodes::ILLEGAL_COLUMN);
}
++pos;
}
else
{
result.append(pos, end);
addShift(end + 1 - pos); /// including zero terminator
break;
}
}
return result;
}
};
void registerFunctionFormatDateTime(FunctionFactory & factory)
{
factory.registerFunction<FunctionFormatDateTime>();
}
}

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#include <DataTypes/DataTypeDateTime.h>
#include <Functions/IFunction.h>
#include <Functions/FunctionFactory.h>
namespace DB
{
/// Get the current time. (It is a constant, it is evaluated once for the entire query.)
class FunctionNow : public IFunction
{
public:
static constexpr auto name = "now";
static FunctionPtr create(const Context &) { return std::make_shared<FunctionNow>(); }
String getName() const override
{
return name;
}
size_t getNumberOfArguments() const override { return 0; }
DataTypePtr getReturnTypeImpl(const DataTypes & /*arguments*/) const override
{
return std::make_shared<DataTypeDateTime>();
}
bool isDeterministic() const override { return false; }
void executeImpl(Block & block, const ColumnNumbers &, size_t result, size_t input_rows_count) override
{
block.getByPosition(result).column = DataTypeDateTime().createColumnConst(
input_rows_count,
static_cast<UInt64>(time(nullptr)));
}
};
void registerFunctionNow(FunctionFactory & factory)
{
factory.registerFunction<FunctionNow>(FunctionFactory::CaseInsensitive);
}
}

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#include <Functions/FunctionFactory.h>
namespace DB
{
void registerFunctionToYear(FunctionFactory &);
void registerFunctionToQuarter(FunctionFactory &);
void registerFunctionToMonth(FunctionFactory &);
void registerFunctionToDayOfMonth(FunctionFactory &);
void registerFunctionToDayOfWeek(FunctionFactory &);
void registerFunctionToDayOfYear(FunctionFactory &);
void registerFunctionToHour(FunctionFactory &);
void registerFunctionToMinute(FunctionFactory &);
void registerFunctionToSecond(FunctionFactory &);
void registerFunctionToStartOfDay(FunctionFactory &);
void registerFunctionToMonday(FunctionFactory &);
void registerFunctionToISOWeek(FunctionFactory &);
void registerFunctionToISOYear(FunctionFactory &);
void registerFunctionToStartOfMonth(FunctionFactory &);
void registerFunctionToStartOfQuarter(FunctionFactory &);
void registerFunctionToStartOfYear(FunctionFactory &);
void registerFunctionToStartOfMinute(FunctionFactory &);
void registerFunctionToStartOfFiveMinute(FunctionFactory &);
void registerFunctionToStartOfFifteenMinutes(FunctionFactory &);
void registerFunctionToStartOfHour(FunctionFactory &);
void registerFunctionToStartOfISOYear(FunctionFactory &);
void registerFunctionToRelativeYearNum(FunctionFactory &);
void registerFunctionToRelativeQuarterNum(FunctionFactory &);
void registerFunctionToRelativeMonthNum(FunctionFactory &);
void registerFunctionToRelativeWeekNum(FunctionFactory &);
void registerFunctionToRelativeDayNum(FunctionFactory &);
void registerFunctionToRelativeHourNum(FunctionFactory &);
void registerFunctionToRelativeMinuteNum(FunctionFactory &);
void registerFunctionToRelativeSecondNum(FunctionFactory &);
void registerFunctionToTime(FunctionFactory &);
void registerFunctionNow(FunctionFactory &);
void registerFunctionToday(FunctionFactory &);
void registerFunctionYesterday(FunctionFactory &);
void registerFunctionTimeSlot(FunctionFactory &);
void registerFunctionTimeSlots(FunctionFactory &);
void registerFunctionToYYYYMM(FunctionFactory &);
void registerFunctionToYYYYMMDD(FunctionFactory &);
void registerFunctionToYYYYMMDDhhmmss(FunctionFactory &);
void registerFunctionAddSeconds(FunctionFactory &);
void registerFunctionAddMinutes(FunctionFactory &);
void registerFunctionAddHours(FunctionFactory &);
void registerFunctionAddDays(FunctionFactory &);
void registerFunctionAddWeeks(FunctionFactory &);
void registerFunctionAddMonths(FunctionFactory &);
void registerFunctionAddYears(FunctionFactory &);
void registerFunctionSubtractSeconds(FunctionFactory &);
void registerFunctionSubtractMinutes(FunctionFactory &);
void registerFunctionSubtractHours(FunctionFactory &);
void registerFunctionSubtractDays(FunctionFactory &);
void registerFunctionSubtractWeeks(FunctionFactory &);
void registerFunctionSubtractMonths(FunctionFactory &);
void registerFunctionSubtractYears(FunctionFactory &);
void registerFunctionDateDiff(FunctionFactory &);
void registerFunctionToTimeZone(FunctionFactory &);
void registerFunctionFormatDateTime(FunctionFactory &);
void registerFunctionsDateTime(FunctionFactory & factory)
{
registerFunctionToYear(factory);
registerFunctionToQuarter(factory);
registerFunctionToMonth(factory);
registerFunctionToDayOfMonth(factory);
registerFunctionToDayOfWeek(factory);
registerFunctionToDayOfYear(factory);
registerFunctionToHour(factory);
registerFunctionToMinute(factory);
registerFunctionToSecond(factory);
registerFunctionToStartOfDay(factory);
registerFunctionToMonday(factory);
registerFunctionToISOWeek(factory);
registerFunctionToISOYear(factory);
registerFunctionToStartOfMonth(factory);
registerFunctionToStartOfQuarter(factory);
registerFunctionToStartOfYear(factory);
registerFunctionToStartOfMinute(factory);
registerFunctionToStartOfFiveMinute(factory);
registerFunctionToStartOfFifteenMinutes(factory);
registerFunctionToStartOfHour(factory);
registerFunctionToStartOfISOYear(factory);
registerFunctionToRelativeYearNum(factory);
registerFunctionToRelativeQuarterNum(factory);
registerFunctionToRelativeMonthNum(factory);
registerFunctionToRelativeWeekNum(factory);
registerFunctionToRelativeDayNum(factory);
registerFunctionToRelativeHourNum(factory);
registerFunctionToRelativeMinuteNum(factory);
registerFunctionToRelativeSecondNum(factory);
registerFunctionToTime(factory);
registerFunctionNow(factory);
registerFunctionToday(factory);
registerFunctionYesterday(factory);
registerFunctionTimeSlot(factory);
registerFunctionTimeSlots(factory);
registerFunctionToYYYYMM(factory);
registerFunctionToYYYYMMDD(factory);
registerFunctionToYYYYMMDDhhmmss(factory);
registerFunctionAddSeconds(factory);
registerFunctionAddMinutes(factory);
registerFunctionAddHours(factory);
registerFunctionAddDays(factory);
registerFunctionAddWeeks(factory);
registerFunctionAddMonths(factory);
registerFunctionAddYears(factory);
registerFunctionSubtractSeconds(factory);
registerFunctionSubtractMinutes(factory);
registerFunctionSubtractHours(factory);
registerFunctionSubtractDays(factory);
registerFunctionSubtractWeeks(factory);
registerFunctionSubtractMonths(factory);
registerFunctionSubtractYears(factory);
registerFunctionDateDiff(factory);
registerFunctionToTimeZone(factory);
registerFunctionFormatDateTime(factory);
}
}

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#include <Functions/IFunction.h>
#include <Functions/FunctionFactory.h>
#include <Functions/FunctionDateOrDateTimeAddInterval.h>
namespace DB
{
using FunctionSubtractDays = FunctionDateOrDateTimeAddInterval<SubtractDaysImpl>;
void registerFunctionSubtractDays(FunctionFactory & factory)
{
factory.registerFunction<FunctionSubtractDays>();
}
}

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dbms/src/Functions/subtractHours.cpp Normal file
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#include <Functions/IFunction.h>
#include <Functions/FunctionFactory.h>
#include <Functions/FunctionDateOrDateTimeAddInterval.h>
namespace DB
{
using FunctionSubtractHours = FunctionDateOrDateTimeAddInterval<SubtractHoursImpl>;
void registerFunctionSubtractHours(FunctionFactory & factory)
{
factory.registerFunction<FunctionSubtractHours>();
}
}

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dbms/src/Functions/subtractMinutes.cpp Normal file
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#include <Functions/IFunction.h>
#include <Functions/FunctionFactory.h>
#include <Functions/FunctionDateOrDateTimeAddInterval.h>
namespace DB
{
using FunctionSubtractMinutes = FunctionDateOrDateTimeAddInterval<SubtractMinutesImpl>;
void registerFunctionSubtractMinutes(FunctionFactory & factory)
{
factory.registerFunction<FunctionSubtractMinutes>();
}
}

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dbms/src/Functions/subtractMonths.cpp Normal file
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#include <Functions/IFunction.h>
#include <Functions/FunctionFactory.h>
#include <Functions/FunctionDateOrDateTimeAddInterval.h>
namespace DB
{
using FunctionSubtractMonths = FunctionDateOrDateTimeAddInterval<SubtractMonthsImpl>;
void registerFunctionSubtractMonths(FunctionFactory & factory)
{
factory.registerFunction<FunctionSubtractMonths>();
}
}

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dbms/src/Functions/subtractSeconds.cpp Normal file
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#include <Functions/IFunction.h>
#include <Functions/FunctionFactory.h>
#include <Functions/FunctionDateOrDateTimeAddInterval.h>
namespace DB
{
using FunctionSubtractSeconds = FunctionDateOrDateTimeAddInterval<SubtractSecondsImpl>;
void registerFunctionSubtractSeconds(FunctionFactory & factory)
{
factory.registerFunction<FunctionSubtractSeconds>();
}
}

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dbms/src/Functions/subtractWeeks.cpp Normal file
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#include <Functions/IFunction.h>
#include <Functions/FunctionFactory.h>
#include <Functions/FunctionDateOrDateTimeAddInterval.h>
namespace DB
{
using FunctionSubtractWeeks = FunctionDateOrDateTimeAddInterval<SubtractWeeksImpl>;
void registerFunctionSubtractWeeks(FunctionFactory & factory)
{
factory.registerFunction<FunctionSubtractWeeks>();
}
}

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dbms/src/Functions/subtractYears.cpp Normal file
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#include <Functions/IFunction.h>
#include <Functions/FunctionFactory.h>
#include <Functions/FunctionDateOrDateTimeAddInterval.h>
namespace DB
{
using FunctionSubtractYears = FunctionDateOrDateTimeAddInterval<SubtractYearsImpl>;
void registerFunctionSubtractYears(FunctionFactory & factory)
{
factory.registerFunction<FunctionSubtractYears>();
}
}

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dbms/src/Functions/timeSlot.cpp Normal file
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#include <Functions/IFunction.h>
#include <Functions/FunctionFactory.h>
#include <Functions/DateTimeTransforms.h>
#include <Functions/FunctionDateOrDateTimeToSomething.h>
#include <DataTypes/DataTypesNumber.h>
namespace DB
{
using FunctionTimeSlot = FunctionDateOrDateTimeToSomething<DataTypeUInt32, TimeSlotImpl>;
void registerFunctionTimeSlot(FunctionFactory & factory)
{
factory.registerFunction<FunctionTimeSlot>();
}
}

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dbms/src/Functions/timeSlots.cpp Normal file
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#include <DataTypes/DataTypeDateTime.h>
#include <DataTypes/DataTypeArray.h>
#include <Columns/ColumnArray.h>
#include <Columns/ColumnsNumber.h>
#include <Functions/IFunction.h>
#include <Functions/FunctionFactory.h>
#include <Functions/FunctionHelpers.h>
#include <Functions/extractTimeZoneFromFunctionArguments.h>
namespace DB
{
namespace ErrorCodes
{
extern const int NUMBER_OF_ARGUMENTS_DOESNT_MATCH;
extern const int ILLEGAL_TYPE_OF_ARGUMENT;
}
/** timeSlots(StartTime, Duration)
* - for the time interval beginning at `StartTime` and continuing `Duration` seconds,
* returns an array of time points, consisting of rounding down to half an hour of points from this interval.
* For example, timeSlots(toDateTime('2012-01-01 12:20:00'), 600) = [toDateTime('2012-01-01 12:00:00'), toDateTime('2012-01-01 12:30:00')].
* This is necessary to search for hits that are part of the corresponding visit.
*
* This is obsolete function. It was developed for Yandex.Metrica, but no longer used.
*/
template <typename DurationType>
struct TimeSlotsImpl
{
static constexpr UInt32 TIME_SLOT_SIZE = 1800;
static void vector_vector(
const PaddedPODArray<UInt32> & starts, const PaddedPODArray<DurationType> & durations,
PaddedPODArray<UInt32> & result_values, ColumnArray::Offsets & result_offsets)
{
size_t size = starts.size();
result_offsets.resize(size);
result_values.reserve(size);
ColumnArray::Offset current_offset = 0;
for (size_t i = 0; i < size; ++i)
{
for (UInt32 value = starts[i] / TIME_SLOT_SIZE; value <= (starts[i] + durations[i]) / TIME_SLOT_SIZE; ++value)
{
result_values.push_back(value * TIME_SLOT_SIZE);
++current_offset;
}
result_offsets[i] = current_offset;
}
}
static void vector_constant(
const PaddedPODArray<UInt32> & starts, DurationType duration,
PaddedPODArray<UInt32> & result_values, ColumnArray::Offsets & result_offsets)
{
size_t size = starts.size();
result_offsets.resize(size);
result_values.reserve(size);
ColumnArray::Offset current_offset = 0;
for (size_t i = 0; i < size; ++i)
{
for (UInt32 value = starts[i] / TIME_SLOT_SIZE; value <= (starts[i] + duration) / TIME_SLOT_SIZE; ++value)
{
result_values.push_back(value * TIME_SLOT_SIZE);
++current_offset;
}
result_offsets[i] = current_offset;
}
}
static void constant_vector(
UInt32 start, const PaddedPODArray<DurationType> & durations,
PaddedPODArray<UInt32> & result_values, ColumnArray::Offsets & result_offsets)
{
size_t size = durations.size();
result_offsets.resize(size);
result_values.reserve(size);
ColumnArray::Offset current_offset = 0;
for (size_t i = 0; i < size; ++i)
{
for (UInt32 value = start / TIME_SLOT_SIZE; value <= (start + durations[i]) / TIME_SLOT_SIZE; ++value)
{
result_values.push_back(value * TIME_SLOT_SIZE);
++current_offset;
}
result_offsets[i] = current_offset;
}
}
static void constant_constant(
UInt32 start, DurationType duration,
Array & result)
{
for (UInt32 value = start / TIME_SLOT_SIZE; value <= (start + duration) / TIME_SLOT_SIZE; ++value)
result.push_back(static_cast<UInt64>(value * TIME_SLOT_SIZE));
}
};
class FunctionTimeSlots : public IFunction
{
public:
static constexpr auto name = "timeSlots";
static FunctionPtr create(const Context &) { return std::make_shared<FunctionTimeSlots>(); }
String getName() const override
{
return name;
}
size_t getNumberOfArguments() const override { return 2; }
DataTypePtr getReturnTypeImpl(const DataTypes & arguments) const override
{
if (!WhichDataType(arguments[0]).isDateTime())
throw Exception("Illegal type " + arguments[0]->getName() + " of first argument of function " + getName() + ". Must be DateTime.",
ErrorCodes::ILLEGAL_TYPE_OF_ARGUMENT);
if (!WhichDataType(arguments[1]).isUInt32())
throw Exception("Illegal type " + arguments[1]->getName() + " of second argument of function " + getName() + ". Must be UInt32.",
ErrorCodes::ILLEGAL_TYPE_OF_ARGUMENT);
return std::make_shared<DataTypeArray>(std::make_shared<DataTypeDateTime>());
}
void executeImpl(Block & block, const ColumnNumbers & arguments, size_t result, size_t input_rows_count) override
{
auto starts = checkAndGetColumn<ColumnUInt32>(block.getByPosition(arguments[0]).column.get());
auto const_starts = checkAndGetColumnConst<ColumnUInt32>(block.getByPosition(arguments[0]).column.get());
auto durations = checkAndGetColumn<ColumnUInt32>(block.getByPosition(arguments[1]).column.get());
auto const_durations = checkAndGetColumnConst<ColumnUInt32>(block.getByPosition(arguments[1]).column.get());
auto res = ColumnArray::create(ColumnUInt32::create());
ColumnUInt32::Container & res_values = typeid_cast<ColumnUInt32 &>(res->getData()).getData();
if (starts && durations)
{
TimeSlotsImpl<UInt32>::vector_vector(starts->getData(), durations->getData(), res_values, res->getOffsets());
block.getByPosition(result).column = std::move(res);
}
else if (starts && const_durations)
{
TimeSlotsImpl<UInt32>::vector_constant(starts->getData(), const_durations->getValue<UInt32>(), res_values, res->getOffsets());
block.getByPosition(result).column = std::move(res);
}
else if (const_starts && durations)
{
TimeSlotsImpl<UInt32>::constant_vector(const_starts->getValue<UInt32>(), durations->getData(), res_values, res->getOffsets());
block.getByPosition(result).column = std::move(res);
}
else if (const_starts && const_durations)
{
Array const_res;
TimeSlotsImpl<UInt32>::constant_constant(const_starts->getValue<UInt32>(), const_durations->getValue<UInt32>(), const_res);
block.getByPosition(result).column = block.getByPosition(result).type->createColumnConst(input_rows_count, const_res);
}
else
throw Exception("Illegal columns " + block.getByPosition(arguments[0]).column->getName()
+ ", " + block.getByPosition(arguments[1]).column->getName()
+ " of arguments of function " + getName(),
ErrorCodes::ILLEGAL_COLUMN);
}
};
void registerFunctionTimeSlots(FunctionFactory & factory)
{
factory.registerFunction<FunctionTimeSlots>();
}
}

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dbms/src/Functions/toDayOfMonth.cpp Normal file
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#include <Functions/IFunction.h>
#include <Functions/FunctionFactory.h>
#include <Functions/DateTimeTransforms.h>
#include <Functions/FunctionDateOrDateTimeToSomething.h>
#include <DataTypes/DataTypesNumber.h>
namespace DB
{
using FunctionToDayOfMonth = FunctionDateOrDateTimeToSomething<DataTypeUInt8, ToDayOfMonthImpl>;
void registerFunctionToDayOfMonth(FunctionFactory & factory)
{
factory.registerFunction<FunctionToDayOfMonth>();
}
}

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dbms/src/Functions/toDayOfWeek.cpp Normal file
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#include <Functions/IFunction.h>
#include <Functions/FunctionFactory.h>
#include <Functions/DateTimeTransforms.h>
#include <Functions/FunctionDateOrDateTimeToSomething.h>
#include <DataTypes/DataTypesNumber.h>
namespace DB
{
using FunctionToDayOfWeek = FunctionDateOrDateTimeToSomething<DataTypeUInt8, ToDayOfWeekImpl>;
void registerFunctionToDayOfWeek(FunctionFactory & factory)
{
factory.registerFunction<FunctionToDayOfWeek>();
}
}

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dbms/src/Functions/toDayOfYear.cpp Normal file
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#include <Functions/IFunction.h>
#include <Functions/FunctionFactory.h>
#include <Functions/DateTimeTransforms.h>
#include <Functions/FunctionDateOrDateTimeToSomething.h>
#include <DataTypes/DataTypesNumber.h>
namespace DB
{
using FunctionToDayOfYear = FunctionDateOrDateTimeToSomething<DataTypeUInt16, ToDayOfYearImpl>;
void registerFunctionToDayOfYear(FunctionFactory & factory)
{
factory.registerFunction<FunctionToDayOfYear>();
}
}

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dbms/src/Functions/toHour.cpp Normal file
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#include <Functions/IFunction.h>
#include <Functions/FunctionFactory.h>
#include <Functions/DateTimeTransforms.h>
#include <Functions/FunctionDateOrDateTimeToSomething.h>
#include <DataTypes/DataTypesNumber.h>
namespace DB
{
using FunctionToHour = FunctionDateOrDateTimeToSomething<DataTypeUInt8, ToHourImpl>;
void registerFunctionToHour(FunctionFactory & factory)
{
factory.registerFunction<FunctionToHour>();
}
}

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dbms/src/Functions/toISOWeek.cpp Normal file
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#include <Functions/IFunction.h>
#include <Functions/FunctionFactory.h>
#include <Functions/DateTimeTransforms.h>
#include <Functions/FunctionDateOrDateTimeToSomething.h>
#include <DataTypes/DataTypesNumber.h>
namespace DB
{
using FunctionToISOWeek = FunctionDateOrDateTimeToSomething<DataTypeUInt8, ToISOWeekImpl>;
void registerFunctionToISOWeek(FunctionFactory & factory)
{
factory.registerFunction<FunctionToISOWeek>();
}
}

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dbms/src/Functions/toISOYear.cpp Normal file
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#include <Functions/IFunction.h>
#include <Functions/FunctionFactory.h>
#include <Functions/DateTimeTransforms.h>
#include <Functions/FunctionDateOrDateTimeToSomething.h>
#include <DataTypes/DataTypesNumber.h>
namespace DB
{
using FunctionToISOYear = FunctionDateOrDateTimeToSomething<DataTypeUInt16, ToISOYearImpl>;
void registerFunctionToISOYear(FunctionFactory & factory)
{
factory.registerFunction<FunctionToISOYear>();
}
}

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dbms/src/Functions/toMinute.cpp Normal file
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#include <Functions/IFunction.h>
#include <Functions/FunctionFactory.h>
#include <Functions/DateTimeTransforms.h>
#include <Functions/FunctionDateOrDateTimeToSomething.h>
#include <DataTypes/DataTypesNumber.h>
namespace DB
{
using FunctionToMinute = FunctionDateOrDateTimeToSomething<DataTypeUInt8, ToMinuteImpl>;
void registerFunctionToMinute(FunctionFactory & factory)
{
factory.registerFunction<FunctionToMinute>();
}
}

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dbms/src/Functions/toMonday.cpp Normal file
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#include <Functions/IFunction.h>
#include <Functions/FunctionFactory.h>
#include <Functions/DateTimeTransforms.h>
#include <Functions/FunctionDateOrDateTimeToSomething.h>
#include <DataTypes/DataTypesNumber.h>
namespace DB
{
using FunctionToMonday = FunctionDateOrDateTimeToSomething<DataTypeDate, ToMondayImpl>;
void registerFunctionToMonday(FunctionFactory & factory)
{
factory.registerFunction<FunctionToMonday>();
}
}

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dbms/src/Functions/toMonth.cpp Normal file
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#include <Functions/IFunction.h>
#include <Functions/FunctionFactory.h>
#include <Functions/DateTimeTransforms.h>
#include <Functions/FunctionDateOrDateTimeToSomething.h>
#include <DataTypes/DataTypesNumber.h>
namespace DB
{
using FunctionToMonth = FunctionDateOrDateTimeToSomething<DataTypeUInt8, ToMonthImpl>;
void registerFunctionToMonth(FunctionFactory & factory)
{
factory.registerFunction<FunctionToMonth>();
}
}

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dbms/src/Functions/toQuarter.cpp Normal file
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#include <Functions/IFunction.h>
#include <Functions/FunctionFactory.h>
#include <Functions/DateTimeTransforms.h>
#include <Functions/FunctionDateOrDateTimeToSomething.h>
#include <DataTypes/DataTypesNumber.h>
namespace DB
{
using FunctionToQuarter = FunctionDateOrDateTimeToSomething<DataTypeUInt8, ToQuarterImpl>;
void registerFunctionToQuarter(FunctionFactory & factory)
{
factory.registerFunction<FunctionToQuarter>();
}
}

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dbms/src/Functions/toRelativeDayNum.cpp Normal file
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#include <Functions/IFunction.h>
#include <Functions/FunctionFactory.h>
#include <Functions/DateTimeTransforms.h>
#include <Functions/FunctionDateOrDateTimeToSomething.h>
#include <DataTypes/DataTypesNumber.h>
namespace DB
{
using FunctionToRelativeDayNum = FunctionDateOrDateTimeToSomething<DataTypeUInt32, ToRelativeDayNumImpl>;
void registerFunctionToRelativeDayNum(FunctionFactory & factory)
{
factory.registerFunction<FunctionToRelativeDayNum>();
}
}

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dbms/src/Functions/toRelativeHourNum.cpp Normal file
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#include <Functions/IFunction.h>
#include <Functions/FunctionFactory.h>
#include <Functions/DateTimeTransforms.h>
#include <Functions/FunctionDateOrDateTimeToSomething.h>
#include <DataTypes/DataTypesNumber.h>
namespace DB
{
using FunctionToRelativeHourNum = FunctionDateOrDateTimeToSomething<DataTypeUInt32, ToRelativeHourNumImpl>;
void registerFunctionToRelativeHourNum(FunctionFactory & factory)
{
factory.registerFunction<FunctionToRelativeHourNum>();
}
}

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dbms/src/Functions/toRelativeMinuteNum.cpp Normal file
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#include <Functions/IFunction.h>
#include <Functions/FunctionFactory.h>
#include <Functions/DateTimeTransforms.h>
#include <Functions/FunctionDateOrDateTimeToSomething.h>
#include <DataTypes/DataTypesNumber.h>
namespace DB
{
using FunctionToRelativeMinuteNum = FunctionDateOrDateTimeToSomething<DataTypeUInt32, ToRelativeMinuteNumImpl>;
void registerFunctionToRelativeMinuteNum(FunctionFactory & factory)
{
factory.registerFunction<FunctionToRelativeMinuteNum>();
}
}

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dbms/src/Functions/toRelativeMonthNum.cpp Normal file
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#include <Functions/IFunction.h>
#include <Functions/FunctionFactory.h>
#include <Functions/DateTimeTransforms.h>
#include <Functions/FunctionDateOrDateTimeToSomething.h>
#include <DataTypes/DataTypesNumber.h>
namespace DB
{
using FunctionToRelativeMonthNum = FunctionDateOrDateTimeToSomething<DataTypeUInt32, ToRelativeMonthNumImpl>;
void registerFunctionToRelativeMonthNum(FunctionFactory & factory)
{
factory.registerFunction<FunctionToRelativeMonthNum>();
}
}

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dbms/src/Functions/toRelativeQuarterNum.cpp Normal file
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#include <Functions/IFunction.h>
#include <Functions/FunctionFactory.h>
#include <Functions/DateTimeTransforms.h>
#include <Functions/FunctionDateOrDateTimeToSomething.h>
#include <DataTypes/DataTypesNumber.h>
namespace DB
{
using FunctionToRelativeQuarterNum = FunctionDateOrDateTimeToSomething<DataTypeUInt32, ToRelativeQuarterNumImpl>;
void registerFunctionToRelativeQuarterNum(FunctionFactory & factory)
{
factory.registerFunction<FunctionToRelativeQuarterNum>();
}
}

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dbms/src/Functions/toRelativeSecondNum.cpp Normal file
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#include <Functions/IFunction.h>
#include <Functions/FunctionFactory.h>
#include <Functions/DateTimeTransforms.h>
#include <Functions/FunctionDateOrDateTimeToSomething.h>
#include <DataTypes/DataTypesNumber.h>
namespace DB
{
using FunctionToRelativeSecondNum = FunctionDateOrDateTimeToSomething<DataTypeUInt32, ToRelativeSecondNumImpl>;
void registerFunctionToRelativeSecondNum(FunctionFactory & factory)
{
factory.registerFunction<FunctionToRelativeSecondNum>();
}
}

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dbms/src/Functions/toRelativeWeekNum.cpp Normal file
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#include <Functions/IFunction.h>
#include <Functions/FunctionFactory.h>
#include <Functions/DateTimeTransforms.h>
#include <Functions/FunctionDateOrDateTimeToSomething.h>
#include <DataTypes/DataTypesNumber.h>
namespace DB
{
using FunctionToRelativeWeekNum = FunctionDateOrDateTimeToSomething<DataTypeUInt32, ToRelativeWeekNumImpl>;
void registerFunctionToRelativeWeekNum(FunctionFactory & factory)
{
factory.registerFunction<FunctionToRelativeWeekNum>();
}
}

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dbms/src/Functions/toRelativeYearNum.cpp Normal file
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#include <Functions/IFunction.h>
#include <Functions/FunctionFactory.h>
#include <Functions/DateTimeTransforms.h>
#include <Functions/FunctionDateOrDateTimeToSomething.h>
#include <DataTypes/DataTypesNumber.h>
namespace DB
{
using FunctionToRelativeYearNum = FunctionDateOrDateTimeToSomething<DataTypeUInt16, ToRelativeYearNumImpl>;
void registerFunctionToRelativeYearNum(FunctionFactory & factory)
{
factory.registerFunction<FunctionToRelativeYearNum>();
}
}

20
dbms/src/Functions/toSecond.cpp Normal file
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@ -0,0 +1,20 @@
#include <Functions/IFunction.h>
#include <Functions/FunctionFactory.h>
#include <Functions/DateTimeTransforms.h>
#include <Functions/FunctionDateOrDateTimeToSomething.h>
#include <DataTypes/DataTypesNumber.h>
namespace DB
{
using FunctionToSecond = FunctionDateOrDateTimeToSomething<DataTypeUInt8, ToSecondImpl>;
void registerFunctionToSecond(FunctionFactory & factory)
{
factory.registerFunction<FunctionToSecond>();
}
}

20
dbms/src/Functions/toStartOfDay.cpp Normal file
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@ -0,0 +1,20 @@
#include <Functions/IFunction.h>
#include <Functions/FunctionFactory.h>
#include <Functions/DateTimeTransforms.h>
#include <Functions/FunctionDateOrDateTimeToSomething.h>
#include <DataTypes/DataTypesNumber.h>
namespace DB
{
using FunctionToStartOfDay = FunctionDateOrDateTimeToSomething<DataTypeDateTime, ToStartOfDayImpl>;
void registerFunctionToStartOfDay(FunctionFactory & factory)
{
factory.registerFunction<FunctionToStartOfDay>();
}
}

20
dbms/src/Functions/toStartOfFifteenMinutes.cpp Normal file
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@ -0,0 +1,20 @@
#include <Functions/IFunction.h>
#include <Functions/FunctionFactory.h>
#include <Functions/DateTimeTransforms.h>
#include <Functions/FunctionDateOrDateTimeToSomething.h>
#include <DataTypes/DataTypesNumber.h>
namespace DB
{
using FunctionToStartOfFifteenMinutes = FunctionDateOrDateTimeToSomething<DataTypeDateTime, ToStartOfFifteenMinutesImpl>;
void registerFunctionToStartOfFifteenMinutes(FunctionFactory & factory)
{
factory.registerFunction<FunctionToStartOfFifteenMinutes>();
}
}

20
dbms/src/Functions/toStartOfFiveMinute.cpp Normal file
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@ -0,0 +1,20 @@
#include <Functions/IFunction.h>
#include <Functions/FunctionFactory.h>
#include <Functions/DateTimeTransforms.h>
#include <Functions/FunctionDateOrDateTimeToSomething.h>
#include <DataTypes/DataTypesNumber.h>
namespace DB
{
using FunctionToStartOfFiveMinute = FunctionDateOrDateTimeToSomething<DataTypeDateTime, ToStartOfFiveMinuteImpl>;
void registerFunctionToStartOfFiveMinute(FunctionFactory & factory)
{
factory.registerFunction<FunctionToStartOfFiveMinute>();
}
}

20
dbms/src/Functions/toStartOfHour.cpp Normal file
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@ -0,0 +1,20 @@
#include <Functions/IFunction.h>
#include <Functions/FunctionFactory.h>
#include <Functions/DateTimeTransforms.h>
#include <Functions/FunctionDateOrDateTimeToSomething.h>
#include <DataTypes/DataTypesNumber.h>
namespace DB
{
using FunctionToStartOfHour = FunctionDateOrDateTimeToSomething<DataTypeDateTime, ToStartOfHourImpl>;
void registerFunctionToStartOfHour(FunctionFactory & factory)
{
factory.registerFunction<FunctionToStartOfHour>();
}
}

20
dbms/src/Functions/toStartOfISOYear.cpp Normal file
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@ -0,0 +1,20 @@
#include <Functions/IFunction.h>
#include <Functions/FunctionFactory.h>
#include <Functions/DateTimeTransforms.h>
#include <Functions/FunctionDateOrDateTimeToSomething.h>
#include <DataTypes/DataTypesNumber.h>
namespace DB
{
using FunctionToStartOfISOYear = FunctionDateOrDateTimeToSomething<DataTypeDate, ToStartOfISOYearImpl>;
void registerFunctionToStartOfISOYear(FunctionFactory & factory)
{
factory.registerFunction<FunctionToStartOfISOYear>();
}
}

20
dbms/src/Functions/toStartOfMinute.cpp Normal file
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@ -0,0 +1,20 @@
#include <Functions/IFunction.h>
#include <Functions/FunctionFactory.h>
#include <Functions/DateTimeTransforms.h>
#include <Functions/FunctionDateOrDateTimeToSomething.h>
#include <DataTypes/DataTypesNumber.h>
namespace DB
{
using FunctionToStartOfMinute = FunctionDateOrDateTimeToSomething<DataTypeDateTime, ToStartOfMinuteImpl>;
void registerFunctionToStartOfMinute(FunctionFactory & factory)
{
factory.registerFunction<FunctionToStartOfMinute>();
}
}

20
dbms/src/Functions/toStartOfMonth.cpp Normal file
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@ -0,0 +1,20 @@
#include <Functions/IFunction.h>
#include <Functions/FunctionFactory.h>
#include <Functions/DateTimeTransforms.h>
#include <Functions/FunctionDateOrDateTimeToSomething.h>
#include <DataTypes/DataTypesNumber.h>
namespace DB
{
using FunctionToStartOfMonth = FunctionDateOrDateTimeToSomething<DataTypeDate, ToStartOfMonthImpl>;
void registerFunctionToStartOfMonth(FunctionFactory & factory)
{
factory.registerFunction<FunctionToStartOfMonth>();
}
}

20
dbms/src/Functions/toStartOfQuarter.cpp Normal file
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@ -0,0 +1,20 @@
#include <Functions/IFunction.h>
#include <Functions/FunctionFactory.h>
#include <Functions/DateTimeTransforms.h>
#include <Functions/FunctionDateOrDateTimeToSomething.h>
#include <DataTypes/DataTypesNumber.h>
namespace DB
{
using FunctionToStartOfQuarter = FunctionDateOrDateTimeToSomething<DataTypeDate, ToStartOfQuarterImpl>;
void registerFunctionToStartOfQuarter(FunctionFactory & factory)
{
factory.registerFunction<FunctionToStartOfQuarter>();
}
}

20
dbms/src/Functions/toStartOfYear.cpp Normal file
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@ -0,0 +1,20 @@
#include <Functions/IFunction.h>
#include <Functions/FunctionFactory.h>
#include <Functions/DateTimeTransforms.h>
#include <Functions/FunctionDateOrDateTimeToSomething.h>
#include <DataTypes/DataTypesNumber.h>
namespace DB
{
using FunctionToStartOfYear = FunctionDateOrDateTimeToSomething<DataTypeDate, ToStartOfYearImpl>;
void registerFunctionToStartOfYear(FunctionFactory & factory)
{
factory.registerFunction<FunctionToStartOfYear>();
}
}

20
dbms/src/Functions/toTime.cpp Normal file
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@ -0,0 +1,20 @@
#include <Functions/IFunction.h>
#include <Functions/FunctionFactory.h>
#include <Functions/DateTimeTransforms.h>
#include <Functions/FunctionDateOrDateTimeToSomething.h>
#include <DataTypes/DataTypesNumber.h>
namespace DB
{
using FunctionToTime = FunctionDateOrDateTimeToSomething<DataTypeDateTime, ToTimeImpl>;
void registerFunctionToTime(FunctionFactory & factory)
{
factory.registerFunction<FunctionToTime>();
}
}

59
dbms/src/Functions/toTimeZone.cpp Normal file
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@ -0,0 +1,59 @@
#include <DataTypes/DataTypeDateTime.h>
#include <Functions/IFunction.h>
#include <Functions/FunctionFactory.h>
#include <Functions/extractTimeZoneFromFunctionArguments.h>
#include <IO/WriteHelpers.h>
namespace DB
{
namespace ErrorCodes
{
extern const int NUMBER_OF_ARGUMENTS_DOESNT_MATCH;
extern const int ILLEGAL_TYPE_OF_ARGUMENT;
}
/// Just changes time zone information for data type. The calculation is free.
class FunctionToTimeZone : public IFunction
{
public:
static constexpr auto name = "toTimeZone";
static FunctionPtr create(const Context &) { return std::make_shared<FunctionToTimeZone>(); }
String getName() const override
{
return name;
}
size_t getNumberOfArguments() const override { return 2; }
DataTypePtr getReturnTypeImpl(const ColumnsWithTypeAndName & arguments) const override
{
if (arguments.size() != 2)
throw Exception("Number of arguments for function " + getName() + " doesn't match: passed "
+ toString(arguments.size()) + ", should be 2",
ErrorCodes::NUMBER_OF_ARGUMENTS_DOESNT_MATCH);
if (!WhichDataType(arguments[0].type).isDateTime())
throw Exception{"Illegal type " + arguments[0].type->getName() + " of argument of function " + getName() +
". Should be DateTime", ErrorCodes::ILLEGAL_TYPE_OF_ARGUMENT};
String time_zone_name = extractTimeZoneNameFromFunctionArguments(arguments, 1, 0);
return std::make_shared<DataTypeDateTime>(time_zone_name);
}
void executeImpl(Block & block, const ColumnNumbers & arguments, size_t result, size_t /*input_rows_count*/) override
{
block.getByPosition(result).column = block.getByPosition(arguments[0]).column;
}
};
void registerFunctionToTimeZone(FunctionFactory & factory)
{
factory.registerFunction<FunctionToTimeZone>();
}
}

20
dbms/src/Functions/toYYYYMM.cpp Normal file
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@ -0,0 +1,20 @@
#include <Functions/IFunction.h>
#include <Functions/FunctionFactory.h>
#include <Functions/DateTimeTransforms.h>
#include <Functions/FunctionDateOrDateTimeToSomething.h>
#include <DataTypes/DataTypesNumber.h>
namespace DB
{
using FunctionToYYYYMM = FunctionDateOrDateTimeToSomething<DataTypeUInt32, ToYYYYMMImpl>;
void registerFunctionToYYYYMM(FunctionFactory & factory)
{
factory.registerFunction<FunctionToYYYYMM>();
}
}

20
dbms/src/Functions/toYYYYMMDD.cpp Normal file
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@ -0,0 +1,20 @@
#include <Functions/IFunction.h>
#include <Functions/FunctionFactory.h>
#include <Functions/DateTimeTransforms.h>
#include <Functions/FunctionDateOrDateTimeToSomething.h>
#include <DataTypes/DataTypesNumber.h>
namespace DB
{
using FunctionToYYYYMMDD = FunctionDateOrDateTimeToSomething<DataTypeUInt32, ToYYYYMMDDImpl>;
void registerFunctionToYYYYMMDD(FunctionFactory & factory)
{
factory.registerFunction<FunctionToYYYYMMDD>();
}
}

20
dbms/src/Functions/toYYYYMMDDhhmmss.cpp Normal file
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@ -0,0 +1,20 @@
#include <Functions/IFunction.h>
#include <Functions/FunctionFactory.h>
#include <Functions/DateTimeTransforms.h>
#include <Functions/FunctionDateOrDateTimeToSomething.h>
#include <DataTypes/DataTypesNumber.h>
namespace DB
{
using FunctionToYYYYMMDDhhmmss = FunctionDateOrDateTimeToSomething<DataTypeUInt64, ToYYYYMMDDhhmmssImpl>;
void registerFunctionToYYYYMMDDhhmmss(FunctionFactory & factory)
{
factory.registerFunction<FunctionToYYYYMMDDhhmmss>();
}
}

20
dbms/src/Functions/toYear.cpp Normal file
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@ -0,0 +1,20 @@
#include <Functions/IFunction.h>
#include <Functions/FunctionFactory.h>
#include <Functions/DateTimeTransforms.h>
#include <Functions/FunctionDateOrDateTimeToSomething.h>
#include <DataTypes/DataTypesNumber.h>
namespace DB
{
using FunctionToYear = FunctionDateOrDateTimeToSomething<DataTypeUInt16, ToYearImpl>;
void registerFunctionToYear(FunctionFactory & factory)
{
factory.registerFunction<FunctionToYear>();
}
}

45
dbms/src/Functions/today.cpp Normal file
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@ -0,0 +1,45 @@
#include <common/DateLUT.h>
#include <DataTypes/DataTypeDate.h>
#include <Functions/IFunction.h>
#include <Functions/FunctionFactory.h>
namespace DB
{
class FunctionToday : public IFunction
{
public:
static constexpr auto name = "today";
static FunctionPtr create(const Context &) { return std::make_shared<FunctionToday>(); }
String getName() const override
{
return name;
}
size_t getNumberOfArguments() const override { return 0; }
DataTypePtr getReturnTypeImpl(const DataTypes & /*arguments*/) const override
{
return std::make_shared<DataTypeDate>();
}
bool isDeterministic() const override { return false; }
void executeImpl(Block & block, const ColumnNumbers &, size_t result, size_t input_rows_count) override
{
block.getByPosition(result).column = DataTypeDate().createColumnConst(
input_rows_count,
UInt64(DateLUT::instance().toDayNum(time(nullptr))));
}
};
void registerFunctionToday(FunctionFactory & factory)
{
factory.registerFunction<FunctionToday>();
}
}

45
dbms/src/Functions/yesterday.cpp Normal file
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@ -0,0 +1,45 @@
#include <common/DateLUT.h>
#include <DataTypes/DataTypeDate.h>
#include <Functions/IFunction.h>
#include <Functions/FunctionFactory.h>
namespace DB
{
class FunctionYesterday : public IFunction
{
public:
static constexpr auto name = "yesterday";
static FunctionPtr create(const Context &) { return std::make_shared<FunctionYesterday>(); }
String getName() const override
{
return name;
}
size_t getNumberOfArguments() const override { return 0; }
DataTypePtr getReturnTypeImpl(const DataTypes & /*arguments*/) const override
{
return std::make_shared<DataTypeDate>();
}
bool isDeterministic() const override { return false; }
void executeImpl(Block & block, const ColumnNumbers &, size_t result, size_t input_rows_count) override
{
block.getByPosition(result).column = DataTypeDate().createColumnConst(
input_rows_count,
UInt64(DateLUT::instance().toDayNum(time(nullptr)) - 1));
}
};
void registerFunctionYesterday(FunctionFactory & factory)
{
factory.registerFunction<FunctionYesterday>();
}
}

10
dbms/src/Interpreters/Context.cpp
View File

@ -897,18 +897,18 @@ StoragePtr Context::executeTableFunction(const ASTPtr & table_expression)
}
DDLGuard::DDLGuard(Map & map_, std::mutex & guards_mutex_, std::unique_lock<std::mutex> && lock, const String & elem)
: map(map_), guards_mutex(guards_mutex_)
DDLGuard::DDLGuard(Map & map_, std::unique_lock<std::mutex> guards_lock_, const String & elem)
: map(map_), guards_lock(std::move(guards_lock_))
{
it = map.emplace(elem, Entry{std::make_unique<std::mutex>(), 0}).first;
++it->second.counter;
lock.unlock();
guards_lock.unlock();
table_lock = std::unique_lock<std::mutex>(*it->second.mutex);
}
DDLGuard::~DDLGuard()
{
std::lock_guard<std::mutex> lock(guards_mutex);
guards_lock.lock();
--it->second.counter;
if (!it->second.counter)
{
@ -920,7 +920,7 @@ DDLGuard::~DDLGuard()
std::unique_ptr<DDLGuard> Context::getDDLGuard(const String & database, const String & table) const
{
std::unique_lock<std::mutex> lock(shared->ddl_guards_mutex);
return std::make_unique<DDLGuard>(shared->ddl_guards[database], shared->ddl_guards_mutex, std::move(lock), table);
return std::make_unique<DDLGuard>(shared->ddl_guards[database], std::move(lock), table);
}

4
dbms/src/Interpreters/Context.h
View File

@ -481,13 +481,13 @@ public:
/// NOTE: using std::map here (and not std::unordered_map) to avoid iterator invalidation on insertion.
using Map = std::map<String, Entry>;
DDLGuard(Map & map_, std::mutex & guards_mutex_, std::unique_lock<std::mutex> && guards_lock, const String & elem);
DDLGuard(Map & map_, std::unique_lock<std::mutex> guards_lock_, const String & elem);
~DDLGuard();
private:
Map & map;
Map::iterator it;
std::mutex & guards_mutex;
std::unique_lock<std::mutex> guards_lock;
std::unique_lock<std::mutex> table_lock;
};

36
dbms/tests/queries/0_stateless/00700_decimal_casts.reference
View File

@ -129,3 +129,39 @@
12345678901234567890123456789012345678
0.123456789 0.123456789123456789
0.12345678901234567890123456789012345678
1234567890.0000000000000000000000000000 1234567890.00000000000000000000000000000 1234567890.00000000000000000000000000000
1234567890.00000000 1234567890.000000000 1234567890.000000000
12345678.0 12345678.00 12345678.00
9223372036854775807.000000 9223372036854775807 -9223372036854775807
9223372036854775800 9223372036854775800 -9223372036854775800
92233720368547758.00 92233720368547758 -92233720368547758
2147483647.0000000000 2147483647 -2147483647
2147483647.00 2147483647 -2147483647
92233720368547757.99 92233720368547757 -92233720368547757
2147483640.99 2147483640 -2147483640
-0.90000000 0
-0.90000000 0
-0.90000000 0
-0.8000 0
-0.8000 0
-0.8000 0
-0.70 0
-0.70 0
-0.70 0
-0.600000 0
-0.600000 0
-0.600000 0
18446744073709551615 18446744073709551615
18446744073709551615.00000000 18446744073709551615
4294967295 4294967295
4294967295.0000000000 4294967295
4294967295 4294967295
4294967295.0000 4294967295
65535 65535
65535.0000000000 65535
65535 65535
65535.0000 65535
2147483647 2147483647
-2147483647 -2147483647
2147483647 2147483647
9223372036854775807 9223372036854775807

90
dbms/tests/queries/0_stateless/00700_decimal_casts.sql
View File

@ -150,4 +150,94 @@ SELECT CAST('0.123456789', 'Decimal(9,8)'); -- { serverError 69 }
SELECT CAST('0.123456789123456789', 'Decimal(18,17)'); -- { serverError 69 }
SELECT CAST('0.12345678901234567890123456789012345678', 'Decimal(38,37)'); -- { serverError 69 }
SELECT toDecimal128('1234567890', 28) AS x, toDecimal128(x, 29), toDecimal128(toDecimal128('1234567890', 28), 29);
SELECT toDecimal128(toDecimal128('1234567890', 28), 30); -- { serverError 407 }
SELECT toDecimal64('1234567890', 8) AS x, toDecimal64(x, 9), toDecimal64(toDecimal64('1234567890', 8), 9);
SELECT toDecimal64(toDecimal64('1234567890', 8), 10); -- { serverError 407 }
SELECT toDecimal32('12345678', 1) AS x, toDecimal32(x, 2), toDecimal32(toDecimal32('12345678', 1), 2);
SELECT toDecimal32(toDecimal32('12345678', 1), 3); -- { serverError 407 }
SELECT toDecimal64(toDecimal64('92233720368547758.1', 1), 2); -- { serverError 407 }
SELECT toDecimal64(toDecimal64('-92233720368547758.1', 1), 2); -- { serverError 407 }
SELECT toDecimal128('9223372036854775807', 6) AS x, toInt64(x), toInt64(-x);
SELECT toDecimal128('9223372036854775809', 6) AS x, toInt64(x); -- { serverError 407 }
SELECT toDecimal128('9223372036854775809', 6) AS x, toInt64(-x); -- { serverError 407 }
SELECT toDecimal64('922337203685477580', 0) * 10 AS x, toInt64(x), toInt64(-x);
SELECT toDecimal64(toDecimal64('92233720368547758.0', 1), 2) AS x, toInt64(x), toInt64(-x);
SELECT toDecimal128('2147483647', 10) AS x, toInt32(x), toInt32(-x);
SELECT toDecimal128('2147483649', 10) AS x, toInt32(x), toInt32(-x); -- { serverError 407 }
SELECT toDecimal64('2147483647', 2) AS x, toInt32(x), toInt32(-x);
SELECT toDecimal64('2147483649', 2) AS x, toInt32(x), toInt32(-x); -- { serverError 407 }
SELECT toDecimal128('92233720368547757.99', 2) AS x, toInt64(x), toInt64(-x);
SELECT toDecimal64('2147483640.99', 2) AS x, toInt32(x), toInt32(-x);
SELECT toDecimal128('-0.9', 8) AS x, toUInt64(x);
SELECT toDecimal64('-0.9', 8) AS x, toUInt64(x);
SELECT toDecimal32('-0.9', 8) AS x, toUInt64(x);
SELECT toDecimal128('-0.8', 4) AS x, toUInt32(x);
SELECT toDecimal64('-0.8', 4) AS x, toUInt32(x);
SELECT toDecimal32('-0.8', 4) AS x, toUInt32(x);
SELECT toDecimal128('-0.7', 2) AS x, toUInt16(x);
SELECT toDecimal64('-0.7', 2) AS x, toUInt16(x);
SELECT toDecimal32('-0.7', 2) AS x, toUInt16(x);
SELECT toDecimal128('-0.6', 6) AS x, toUInt8(x);
SELECT toDecimal64('-0.6', 6) AS x, toUInt8(x);
SELECT toDecimal32('-0.6', 6) AS x, toUInt8(x);
SELECT toDecimal128('-1', 7) AS x, toUInt64(x); -- { serverError 407 }
SELECT toDecimal128('-1', 7) AS x, toUInt32(x); -- { serverError 407 }
SELECT toDecimal128('-1', 7) AS x, toUInt16(x); -- { serverError 407 }
SELECT toDecimal128('-1', 7) AS x, toUInt8(x); -- { serverError 407 }
SELECT toDecimal64('-1', 5) AS x, toUInt64(x); -- { serverError 407 }
SELECT toDecimal64('-1', 5) AS x, toUInt32(x); -- { serverError 407 }
SELECT toDecimal64('-1', 5) AS x, toUInt16(x); -- { serverError 407 }
SELECT toDecimal64('-1', 5) AS x, toUInt8(x); -- { serverError 407 }
SELECT toDecimal32('-1', 3) AS x, toUInt64(x); -- { serverError 407 }
SELECT toDecimal32('-1', 3) AS x, toUInt32(x); -- { serverError 407 }
SELECT toDecimal32('-1', 3) AS x, toUInt16(x); -- { serverError 407 }
SELECT toDecimal32('-1', 3) AS x, toUInt8(x); -- { serverError 407 }
SELECT toDecimal128('18446744073709551615', 0) AS x, toUInt64(x);
SELECT toDecimal128('18446744073709551616', 0) AS x, toUInt64(x); -- { serverError 407 }
SELECT toDecimal128('18446744073709551615', 8) AS x, toUInt64(x);
SELECT toDecimal128('18446744073709551616', 8) AS x, toUInt64(x); -- { serverError 407 }
SELECT toDecimal128('4294967295', 0) AS x, toUInt32(x);
SELECT toDecimal128('4294967296', 0) AS x, toUInt32(x); -- { serverError 407 }
SELECT toDecimal128('4294967295', 10) AS x, toUInt32(x);
SELECT toDecimal128('4294967296', 10) AS x, toUInt32(x); -- { serverError 407 }
SELECT toDecimal64('4294967295', 0) AS x, toUInt32(x);
SELECT toDecimal64('4294967296', 0) AS x, toUInt32(x); -- { serverError 407 }
SELECT toDecimal64('4294967295', 4) AS x, toUInt32(x);
SELECT toDecimal64('4294967296', 4) AS x, toUInt32(x); -- { serverError 407 }
SELECT toDecimal128('65535', 0) AS x, toUInt16(x);
SELECT toDecimal128('65536', 0) AS x, toUInt16(x); -- { serverError 407 }
SELECT toDecimal128('65535', 10) AS x, toUInt16(x);
SELECT toDecimal128('65536', 10) AS x, toUInt16(x); -- { serverError 407 }
SELECT toDecimal64('65535', 0) AS x, toUInt16(x);
SELECT toDecimal64('65536', 0) AS x, toUInt16(x); -- { serverError 407 }
SELECT toDecimal64('65535', 4) AS x, toUInt16(x);
SELECT toDecimal64('65536', 4) AS x, toUInt16(x); -- { serverError 407 }
SELECT toInt64('2147483647') AS x, toDecimal32(x, 0);
SELECT toInt64('-2147483647') AS x, toDecimal32(x, 0);
SELECT toUInt64('2147483647') AS x, toDecimal32(x, 0);
SELECT toInt64('2147483649') AS x, toDecimal32(x, 0); -- { serverError 407 }
SELECT toInt64('-2147483649') AS x, toDecimal32(x, 0); -- { serverError 407 }
SELECT toUInt64('2147483649') AS x, toDecimal32(x, 0); -- { serverError 407 }
SELECT toUInt64('9223372036854775807') AS x, toDecimal64(x, 0);
SELECT toUInt64('9223372036854775809') AS x, toDecimal64(x, 0); -- { serverError 407 }
DROP TABLE IF EXISTS test.decimal;

2
docs/ru/query_language/functions/string_search_functions.md
View File

@ -15,7 +15,7 @@
Для поиска без учета регистра используйте функцию `positionCaseInsensitiveUTF8`.
## match(haystack, pattern)
Проверка строки на соответствие регулярному выражению pattern. Регулярное выражение re2.
Проверка строки на соответствие регулярному выражению pattern. Регулярное выражение **re2**. Синтаксис регулярных выражений **re2** является более ограниченным по сравнению с регулярными выражениями **Perl** ([подробнее](https://github.com/google/re2/wiki/Syntax)).
Возвращает 0 (если не соответствует) или 1 (если соответствует).
Обратите внимание, что для экранирования в регулярном выражении, используется символ `\` (обратный слеш). Этот же символ используется для экранирования в строковых литералах. Поэтому, чтобы экранировать символ в регулярном выражении, необходимо написать в строковом литерале \\ (два обратных слеша).