mirror of
https://github.com/ClickHouse/ClickHouse.git
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602 lines
27 KiB
C++
602 lines
27 KiB
C++
#pragma once
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#include <type_traits>
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#include <Core/AccurateComparison.h>
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#include <Core/DecimalFunctions.h>
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#include <Common/DateLUTImpl.h>
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#include <DataTypes/DataTypeDate.h>
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#include <DataTypes/DataTypeDate32.h>
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#include <DataTypes/DataTypeDateTime.h>
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#include <DataTypes/DataTypeDateTime64.h>
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#include <Columns/ColumnsNumber.h>
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#include <Functions/IFunction.h>
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#include <Functions/FunctionHelpers.h>
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#include <Functions/castTypeToEither.h>
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#include <Functions/extractTimeZoneFromFunctionArguments.h>
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#include <IO/WriteHelpers.h>
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namespace DB
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{
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namespace ErrorCodes
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{
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extern const int LOGICAL_ERROR;
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extern const int DECIMAL_OVERFLOW;
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extern const int ILLEGAL_COLUMN;
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extern const int ILLEGAL_TYPE_OF_ARGUMENT;
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extern const int NUMBER_OF_ARGUMENTS_DOESNT_MATCH;
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}
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/// Type of first argument of 'execute' function overload defines what INPUT DataType it is used for.
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/// Return type defines what is the OUTPUT (return) type of the CH function.
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/// Corresponding types:
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/// - UInt16 => DataTypeDate
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/// - UInt32 => DataTypeDateTime
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/// - Int32 => DataTypeDate32
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/// - DateTime64 => DataTypeDateTime64
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/// - Int8 => error
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/// Please note that INPUT and OUTPUT types may differ, e.g.:
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/// - 'AddSecondsImpl::execute(UInt32, ...) -> UInt32' is available to the ClickHouse users as 'addSeconds(DateTime, ...) -> DateTime'
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/// - 'AddSecondsImpl::execute(UInt16, ...) -> UInt32' is available to the ClickHouse users as 'addSeconds(Date, ...) -> DateTime'
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struct AddNanosecondsImpl
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{
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static constexpr auto name = "addNanoseconds";
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static NO_SANITIZE_UNDEFINED DateTime64 execute(DateTime64 t, Int64 delta, const DateLUTImpl &, UInt16 scale)
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{
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Int64 multiplier = DecimalUtils::scaleMultiplier<DateTime64>(9 - scale);
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return DateTime64(DecimalUtils::multiplyAdd(t.value, multiplier, delta));
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}
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static NO_SANITIZE_UNDEFINED DateTime64 execute(UInt32 t, Int64 delta, const DateLUTImpl &, UInt16)
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{
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Int64 multiplier = DecimalUtils::scaleMultiplier<DateTime64>(9);
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return DateTime64(DecimalUtils::multiplyAdd(static_cast<Int64>(t), multiplier, delta));
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}
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static NO_SANITIZE_UNDEFINED Int8 execute(UInt16, Int64, const DateLUTImpl &, UInt16)
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{
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throw Exception(ErrorCodes::LOGICAL_ERROR, "addNanoseconds() cannot be used with Date");
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}
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static NO_SANITIZE_UNDEFINED Int8 execute(Int32, Int64, const DateLUTImpl &, UInt16)
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{
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throw Exception(ErrorCodes::LOGICAL_ERROR, "addNanoseconds() cannot be used with Date32");
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}
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};
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struct AddMicrosecondsImpl
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{
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static constexpr auto name = "addMicroseconds";
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static NO_SANITIZE_UNDEFINED DateTime64 execute(DateTime64 t, Int64 delta, const DateLUTImpl &, UInt16 scale)
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{
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Int64 multiplier = DecimalUtils::scaleMultiplier<DateTime64>(std::abs(6 - scale));
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return DateTime64(scale <= 6
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? DecimalUtils::multiplyAdd(t.value, multiplier, delta)
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: DecimalUtils::multiplyAdd(delta, multiplier, t.value));
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}
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static NO_SANITIZE_UNDEFINED DateTime64 execute(UInt32 t, Int64 delta, const DateLUTImpl &, UInt16)
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{
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Int64 multiplier = DecimalUtils::scaleMultiplier<DateTime64>(6);
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return DateTime64(DecimalUtils::multiplyAdd(static_cast<Int64>(t), multiplier, delta));
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}
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static NO_SANITIZE_UNDEFINED Int8 execute(UInt16, Int64, const DateLUTImpl &, UInt16)
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{
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throw Exception(ErrorCodes::LOGICAL_ERROR, "addMicroseconds() cannot be used with Date");
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}
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static NO_SANITIZE_UNDEFINED Int8 execute(Int32, Int64, const DateLUTImpl &, UInt16)
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{
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throw Exception(ErrorCodes::LOGICAL_ERROR, "addMicroseconds() cannot be used with Date32");
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}
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};
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struct AddMillisecondsImpl
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{
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static constexpr auto name = "addMilliseconds";
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static NO_SANITIZE_UNDEFINED DateTime64 execute(DateTime64 t, Int64 delta, const DateLUTImpl &, UInt16 scale)
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{
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Int64 multiplier = DecimalUtils::scaleMultiplier<DateTime64>(std::abs(3 - scale));
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return DateTime64(scale <= 3
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? DecimalUtils::multiplyAdd(t.value, multiplier, delta)
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: DecimalUtils::multiplyAdd(delta, multiplier, t.value));
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}
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static NO_SANITIZE_UNDEFINED DateTime64 execute(UInt32 t, Int64 delta, const DateLUTImpl &, UInt16)
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{
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Int64 multiplier = DecimalUtils::scaleMultiplier<DateTime64>(3);
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return DateTime64(DecimalUtils::multiplyAdd(static_cast<Int64>(t), multiplier, delta));
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}
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static NO_SANITIZE_UNDEFINED Int8 execute(UInt16, Int64, const DateLUTImpl &, UInt16)
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{
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throw Exception(ErrorCodes::LOGICAL_ERROR, "addMilliseconds() cannot be used with Date");
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}
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static NO_SANITIZE_UNDEFINED Int8 execute(Int32, Int64, const DateLUTImpl &, UInt16)
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{
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throw Exception(ErrorCodes::LOGICAL_ERROR, "addMilliseconds() cannot be used with Date32");
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}
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};
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struct AddSecondsImpl
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{
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static constexpr auto name = "addSeconds";
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static NO_SANITIZE_UNDEFINED DateTime64 execute(DateTime64 t, Int64 delta, const DateLUTImpl &, UInt16 scale)
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{
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return DateTime64(DecimalUtils::multiplyAdd(delta, DecimalUtils::scaleMultiplier<DateTime64>(scale), t.value));
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}
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static NO_SANITIZE_UNDEFINED UInt32 execute(UInt32 t, Int64 delta, const DateLUTImpl &, UInt16)
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{
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return static_cast<UInt32>(t + delta);
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}
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static NO_SANITIZE_UNDEFINED Int64 execute(Int32 d, Int64 delta, const DateLUTImpl & time_zone, UInt16)
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{
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// use default datetime64 scale
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static_assert(DataTypeDateTime64::default_scale == 3);
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return (time_zone.fromDayNum(ExtendedDayNum(d)) + delta) * 1000;
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}
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static NO_SANITIZE_UNDEFINED UInt32 execute(UInt16 d, Int64 delta, const DateLUTImpl & time_zone, UInt16)
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{
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return static_cast<UInt32>(time_zone.fromDayNum(DayNum(d)) + delta);
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}
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};
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struct AddMinutesImpl
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{
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static constexpr auto name = "addMinutes";
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static NO_SANITIZE_UNDEFINED DateTime64 execute(DateTime64 t, Int64 delta, const DateLUTImpl &, UInt16 scale)
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{
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return t + 60 * delta * DecimalUtils::scaleMultiplier<DateTime64>(scale);
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}
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static NO_SANITIZE_UNDEFINED UInt32 execute(UInt32 t, Int64 delta, const DateLUTImpl &, UInt16)
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{
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return static_cast<UInt32>(t + delta * 60);
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}
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static NO_SANITIZE_UNDEFINED Int64 execute(Int32 d, Int64 delta, const DateLUTImpl & time_zone, UInt16)
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{
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// use default datetime64 scale
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static_assert(DataTypeDateTime64::default_scale == 3);
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return (time_zone.fromDayNum(ExtendedDayNum(d)) + delta * 60) * 1000;
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}
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static NO_SANITIZE_UNDEFINED UInt32 execute(UInt16 d, Int64 delta, const DateLUTImpl & time_zone, UInt16)
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{
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return static_cast<UInt32>(time_zone.fromDayNum(DayNum(d)) + delta * 60);
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}
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};
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struct AddHoursImpl
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{
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static constexpr auto name = "addHours";
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static NO_SANITIZE_UNDEFINED DateTime64 execute(DateTime64 t, Int64 delta, const DateLUTImpl &, UInt16 scale)
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{
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return t + 3600 * delta * DecimalUtils::scaleMultiplier<DateTime64>(scale);
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}
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static NO_SANITIZE_UNDEFINED UInt32 execute(UInt32 t, Int64 delta, const DateLUTImpl &, UInt16)
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{
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return static_cast<UInt32>(t + delta * 3600);
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}
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static NO_SANITIZE_UNDEFINED Int64 execute(Int32 d, Int64 delta, const DateLUTImpl & time_zone, UInt16)
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{
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// use default datetime64 scale
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static_assert(DataTypeDateTime64::default_scale == 3);
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return (time_zone.fromDayNum(ExtendedDayNum(d)) + delta * 3600) * 1000;
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}
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static NO_SANITIZE_UNDEFINED UInt32 execute(UInt16 d, Int64 delta, const DateLUTImpl & time_zone, UInt16)
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{
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return static_cast<UInt32>(time_zone.fromDayNum(DayNum(d)) + delta * 3600);
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}
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};
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struct AddDaysImpl
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{
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static constexpr auto name = "addDays";
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static NO_SANITIZE_UNDEFINED DateTime64 execute(DateTime64 t, Int64 delta, const DateLUTImpl & time_zone, UInt16 scale)
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{
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auto multiplier = DecimalUtils::scaleMultiplier<DateTime64>(scale);
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auto d = std::div(t, multiplier);
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return time_zone.addDays(d.quot, delta) * multiplier + d.rem;
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}
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static NO_SANITIZE_UNDEFINED UInt32 execute(UInt32 t, Int64 delta, const DateLUTImpl & time_zone, UInt16)
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{
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return static_cast<UInt32>(time_zone.addDays(t, delta));
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}
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static NO_SANITIZE_UNDEFINED UInt16 execute(UInt16 d, Int64 delta, const DateLUTImpl &, UInt16)
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{
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return d + delta;
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}
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static NO_SANITIZE_UNDEFINED Int32 execute(Int32 d, Int64 delta, const DateLUTImpl &, UInt16)
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{
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return static_cast<Int32>(d + delta);
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}
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};
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struct AddWeeksImpl
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{
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static constexpr auto name = "addWeeks";
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static NO_SANITIZE_UNDEFINED DateTime64 execute(DateTime64 t, Int64 delta, const DateLUTImpl & time_zone, UInt16 scale)
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{
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auto multiplier = DecimalUtils::scaleMultiplier<DateTime64>(scale);
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auto d = std::div(t, multiplier);
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return time_zone.addDays(d.quot, delta * 7) * multiplier + d.rem;
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}
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static NO_SANITIZE_UNDEFINED UInt32 execute(UInt32 t, Int64 delta, const DateLUTImpl & time_zone, UInt16)
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{
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return static_cast<UInt32>(time_zone.addWeeks(t, delta));
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}
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static NO_SANITIZE_UNDEFINED UInt16 execute(UInt16 d, Int64 delta, const DateLUTImpl &, UInt16)
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{
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return static_cast<UInt16>(d + delta * 7);
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}
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static NO_SANITIZE_UNDEFINED Int32 execute(Int32 d, Int64 delta, const DateLUTImpl &, UInt16)
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{
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return static_cast<Int32>(d + delta * 7);
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}
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};
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struct AddMonthsImpl
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{
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static constexpr auto name = "addMonths";
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static NO_SANITIZE_UNDEFINED DateTime64 execute(DateTime64 t, Int64 delta, const DateLUTImpl & time_zone, UInt16 scale)
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{
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auto multiplier = DecimalUtils::scaleMultiplier<DateTime64>(scale);
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auto d = std::div(t, multiplier);
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return time_zone.addMonths(d.quot, delta) * multiplier + d.rem;
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}
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static NO_SANITIZE_UNDEFINED UInt32 execute(UInt32 t, Int64 delta, const DateLUTImpl & time_zone, UInt16)
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{
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return static_cast<UInt32>(time_zone.addMonths(t, delta));
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}
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static NO_SANITIZE_UNDEFINED UInt16 execute(UInt16 d, Int64 delta, const DateLUTImpl & time_zone, UInt16)
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{
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return time_zone.addMonths(DayNum(d), delta);
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}
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static NO_SANITIZE_UNDEFINED Int32 execute(Int32 d, Int64 delta, const DateLUTImpl & time_zone, UInt16)
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{
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return time_zone.addMonths(ExtendedDayNum(d), delta);
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}
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};
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struct AddQuartersImpl
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{
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static constexpr auto name = "addQuarters";
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static NO_SANITIZE_UNDEFINED DateTime64 execute(DateTime64 t, Int64 delta, const DateLUTImpl & time_zone, UInt16 scale)
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{
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auto multiplier = DecimalUtils::scaleMultiplier<DateTime64>(scale);
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auto d = std::div(t, multiplier);
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return time_zone.addQuarters(d.quot, delta) * multiplier + d.rem;
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}
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static UInt32 execute(UInt32 t, Int64 delta, const DateLUTImpl & time_zone, UInt16)
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{
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return static_cast<UInt32>(time_zone.addQuarters(t, delta));
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}
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static UInt16 execute(UInt16 d, Int64 delta, const DateLUTImpl & time_zone, UInt16)
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{
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return time_zone.addQuarters(DayNum(d), delta);
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}
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static Int32 execute(Int32 d, Int64 delta, const DateLUTImpl & time_zone, UInt16)
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{
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return time_zone.addQuarters(ExtendedDayNum(d), delta);
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}
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};
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struct AddYearsImpl
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{
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static constexpr auto name = "addYears";
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static NO_SANITIZE_UNDEFINED DateTime64 execute(DateTime64 t, Int64 delta, const DateLUTImpl & time_zone, UInt16 scale)
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{
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auto multiplier = DecimalUtils::scaleMultiplier<DateTime64>(scale);
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auto d = std::div(t, multiplier);
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return time_zone.addYears(d.quot, delta) * multiplier + d.rem;
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}
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static NO_SANITIZE_UNDEFINED UInt32 execute(UInt32 t, Int64 delta, const DateLUTImpl & time_zone, UInt16)
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{
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return static_cast<UInt32>(time_zone.addYears(t, delta));
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}
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static NO_SANITIZE_UNDEFINED UInt16 execute(UInt16 d, Int64 delta, const DateLUTImpl & time_zone, UInt16)
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{
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return time_zone.addYears(DayNum(d), delta);
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}
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static NO_SANITIZE_UNDEFINED Int32 execute(Int32 d, Int64 delta, const DateLUTImpl & time_zone, UInt16)
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{
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return time_zone.addYears(ExtendedDayNum(d), delta);
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}
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};
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template <typename Transform>
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struct SubtractIntervalImpl : public Transform
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{
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using Transform::Transform;
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template <typename T>
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NO_SANITIZE_UNDEFINED auto execute(T t, Int64 delta, const DateLUTImpl & time_zone, UInt16 scale) const
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{
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/// Signed integer overflow is Ok.
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return Transform::execute(t, -delta, time_zone, scale);
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}
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};
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struct SubtractNanosecondsImpl : SubtractIntervalImpl<AddNanosecondsImpl> { static constexpr auto name = "subtractNanoseconds"; };
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struct SubtractMicrosecondsImpl : SubtractIntervalImpl<AddMicrosecondsImpl> { static constexpr auto name = "subtractMicroseconds"; };
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struct SubtractMillisecondsImpl : SubtractIntervalImpl<AddMillisecondsImpl> { static constexpr auto name = "subtractMilliseconds"; };
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struct SubtractSecondsImpl : SubtractIntervalImpl<AddSecondsImpl> { static constexpr auto name = "subtractSeconds"; };
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struct SubtractMinutesImpl : SubtractIntervalImpl<AddMinutesImpl> { static constexpr auto name = "subtractMinutes"; };
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struct SubtractHoursImpl : SubtractIntervalImpl<AddHoursImpl> { static constexpr auto name = "subtractHours"; };
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struct SubtractDaysImpl : SubtractIntervalImpl<AddDaysImpl> { static constexpr auto name = "subtractDays"; };
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struct SubtractWeeksImpl : SubtractIntervalImpl<AddWeeksImpl> { static constexpr auto name = "subtractWeeks"; };
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struct SubtractMonthsImpl : SubtractIntervalImpl<AddMonthsImpl> { static constexpr auto name = "subtractMonths"; };
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struct SubtractQuartersImpl : SubtractIntervalImpl<AddQuartersImpl> { static constexpr auto name = "subtractQuarters"; };
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struct SubtractYearsImpl : SubtractIntervalImpl<AddYearsImpl> { static constexpr auto name = "subtractYears"; };
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template <typename Transform>
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struct Processor
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{
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const Transform transform;
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explicit Processor(Transform transform_)
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: transform(std::move(transform_))
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{}
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template <typename FromVectorType, typename ToVectorType>
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void NO_INLINE vectorConstant(const FromVectorType & vec_from, ToVectorType & vec_to, Int64 delta, const DateLUTImpl & time_zone, UInt16 scale) const
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{
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size_t size = vec_from.size();
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vec_to.resize(size);
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for (size_t i = 0; i < size; ++i)
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vec_to[i] = transform.execute(vec_from[i], checkOverflow(delta), time_zone, scale);
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}
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template <typename FromVectorType, typename ToVectorType>
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void vectorVector(const FromVectorType & vec_from, ToVectorType & vec_to, const IColumn & delta, const DateLUTImpl & time_zone, UInt16 scale) const
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{
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size_t size = vec_from.size();
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vec_to.resize(size);
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castTypeToEither<
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ColumnUInt8, ColumnUInt16, ColumnUInt32, ColumnUInt64,
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ColumnInt8, ColumnInt16, ColumnInt32, ColumnInt64,
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ColumnFloat32, ColumnFloat64>(
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&delta, [&](const auto & column){ vectorVector(vec_from, vec_to, column, time_zone, scale, size); return true; });
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}
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template <typename FromType, typename ToVectorType>
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void constantVector(const FromType & from, ToVectorType & vec_to, const IColumn & delta, const DateLUTImpl & time_zone, UInt16 scale) const
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{
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size_t size = delta.size();
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vec_to.resize(size);
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castTypeToEither<
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ColumnUInt8, ColumnUInt16, ColumnUInt32, ColumnUInt64,
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ColumnInt8, ColumnInt16, ColumnInt32, ColumnInt64,
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ColumnFloat32, ColumnFloat64>(
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&delta, [&](const auto & column){ constantVector(from, vec_to, column, time_zone, scale, size); return true; });
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}
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private:
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template <typename Value>
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static Int64 checkOverflow(Value val)
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{
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Int64 result;
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if (accurate::convertNumeric<Value, Int64, false>(val, result))
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return result;
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throw DB::Exception(ErrorCodes::DECIMAL_OVERFLOW, "Numeric overflow");
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}
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template <typename FromVectorType, typename ToVectorType, typename DeltaColumnType>
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NO_INLINE NO_SANITIZE_UNDEFINED void vectorVector(
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const FromVectorType & vec_from, ToVectorType & vec_to, const DeltaColumnType & delta, const DateLUTImpl & time_zone, UInt16 scale, size_t size) const
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{
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for (size_t i = 0; i < size; ++i)
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vec_to[i] = transform.execute(vec_from[i], checkOverflow(delta.getData()[i]), time_zone, scale);
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}
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template <typename FromType, typename ToVectorType, typename DeltaColumnType>
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NO_INLINE NO_SANITIZE_UNDEFINED void constantVector(
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const FromType & from, ToVectorType & vec_to, const DeltaColumnType & delta, const DateLUTImpl & time_zone, UInt16 scale, size_t size) const
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{
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for (size_t i = 0; i < size; ++i)
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vec_to[i] = transform.execute(from, checkOverflow(delta.getData()[i]), time_zone, scale);
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}
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};
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template <typename FromDataType, typename ToDataType, typename Transform>
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struct DateTimeAddIntervalImpl
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{
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static ColumnPtr execute(Transform transform, const ColumnsWithTypeAndName & arguments, const DataTypePtr & result_type, UInt16 scale)
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{
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using FromValueType = typename FromDataType::FieldType;
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using FromColumnType = typename FromDataType::ColumnType;
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using ToColumnType = typename ToDataType::ColumnType;
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const IColumn & source_column = *arguments[0].column;
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const IColumn & delta_column = *arguments[1].column;
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const DateLUTImpl & time_zone = extractTimeZoneFromFunctionArguments(arguments, 2, 0);
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|
|
|
auto result_col = result_type->createColumn();
|
|
auto col_to = assert_cast<ToColumnType *>(result_col.get());
|
|
|
|
auto processor = Processor<Transform>{std::move(transform)};
|
|
|
|
if (const auto * sources = checkAndGetColumn<FromColumnType>(&source_column))
|
|
{
|
|
if (const auto * delta_const_column = typeid_cast<const ColumnConst *>(&delta_column))
|
|
processor.vectorConstant(sources->getData(), col_to->getData(), delta_const_column->getInt(0), time_zone, scale);
|
|
else
|
|
processor.vectorVector(sources->getData(), col_to->getData(), delta_column, time_zone, scale);
|
|
}
|
|
else if (const auto * sources_const = checkAndGetColumnConst<FromColumnType>(&source_column))
|
|
{
|
|
processor.constantVector(
|
|
sources_const->template getValue<FromValueType>(),
|
|
col_to->getData(), delta_column, time_zone, scale);
|
|
}
|
|
else
|
|
{
|
|
throw Exception(ErrorCodes::ILLEGAL_COLUMN, "Illegal column {} of first argument of function {}",
|
|
arguments[0].column->getName(), Transform::name);
|
|
}
|
|
|
|
return result_col;
|
|
}
|
|
};
|
|
|
|
namespace date_and_time_type_details
|
|
{
|
|
// Compile-time mapping of value (DataType::FieldType) types to corresponding DataType
|
|
template <typename FieldType> struct ResultDataTypeMap {};
|
|
template <> struct ResultDataTypeMap<UInt16> { using ResultDataType = DataTypeDate; };
|
|
template <> struct ResultDataTypeMap<UInt32> { using ResultDataType = DataTypeDateTime; };
|
|
template <> struct ResultDataTypeMap<Int32> { using ResultDataType = DataTypeDate32; };
|
|
template <> struct ResultDataTypeMap<DateTime64> { using ResultDataType = DataTypeDateTime64; };
|
|
template <> struct ResultDataTypeMap<Int64> { using ResultDataType = DataTypeDateTime64; };
|
|
template <> struct ResultDataTypeMap<Int8> { using ResultDataType = DataTypeInt8; }; // error
|
|
}
|
|
|
|
template <typename Transform>
|
|
class FunctionDateOrDateTimeAddInterval : public IFunction
|
|
{
|
|
public:
|
|
static constexpr auto name = Transform::name;
|
|
static FunctionPtr create(ContextPtr) { return std::make_shared<FunctionDateOrDateTimeAddInterval>(); }
|
|
|
|
String getName() const override { return name; }
|
|
|
|
bool isVariadic() const override { return true; }
|
|
size_t getNumberOfArguments() const override { return 0; }
|
|
bool isSuitableForShortCircuitArgumentsExecution(const DataTypesWithConstInfo & /*arguments*/) const override { return false; }
|
|
|
|
DataTypePtr getReturnTypeImpl(const ColumnsWithTypeAndName & arguments) const override
|
|
{
|
|
if (arguments.size() != 2 && arguments.size() != 3)
|
|
throw Exception(ErrorCodes::NUMBER_OF_ARGUMENTS_DOESNT_MATCH,
|
|
"Number of arguments for function {} doesn't match: passed {}, should be 2 or 3",
|
|
getName(), arguments.size());
|
|
|
|
if (arguments.size() == 2)
|
|
{
|
|
if (!isDateOrDate32OrDateTimeOrDateTime64(arguments[0].type))
|
|
throw Exception(ErrorCodes::ILLEGAL_TYPE_OF_ARGUMENT, "Illegal type {} of first argument of function {}. "
|
|
"Should be a date or a date with time", arguments[0].type->getName(), getName());
|
|
}
|
|
else
|
|
{
|
|
if (!WhichDataType(arguments[0].type).isDateTime())
|
|
throw Exception(ErrorCodes::ILLEGAL_TYPE_OF_ARGUMENT, "Illegal type {} of first argument of function {}. "
|
|
"Should be a DateTime", arguments[0].type->getName(), getName());
|
|
|
|
if (!WhichDataType(arguments[2].type).isString())
|
|
throw Exception(ErrorCodes::ILLEGAL_TYPE_OF_ARGUMENT, "Illegal type {} of third argument of function {}. "
|
|
"The 3rd argument must be a constant string with a timezone name. "
|
|
"The timezone argument is allowed only when the 1st argument has the type DateTime",
|
|
arguments[2].type->getName(), getName());
|
|
}
|
|
|
|
if (!isNativeNumber(arguments[1].type))
|
|
throw Exception(ErrorCodes::ILLEGAL_TYPE_OF_ARGUMENT, "Second argument for function {} must be a number", getName());
|
|
|
|
switch (arguments[0].type->getTypeId())
|
|
{
|
|
case TypeIndex::Date:
|
|
return resolveReturnType<DataTypeDate>(arguments);
|
|
case TypeIndex::Date32:
|
|
return resolveReturnType<DataTypeDate32>(arguments);
|
|
case TypeIndex::DateTime:
|
|
return resolveReturnType<DataTypeDateTime>(arguments);
|
|
case TypeIndex::DateTime64:
|
|
return resolveReturnType<DataTypeDateTime64>(arguments);
|
|
default:
|
|
throw Exception(ErrorCodes::ILLEGAL_TYPE_OF_ARGUMENT, "Invalid type of 1st argument of function {}: "
|
|
"{}, expected: Date, DateTime or DateTime64.", getName(), arguments[0].type->getName());
|
|
}
|
|
}
|
|
|
|
/// Helper templates to deduce return type based on argument type, since some overloads may promote or denote types,
|
|
/// e.g. addSeconds(Date, 1) => DateTime
|
|
template <typename FieldType>
|
|
using TransformExecuteReturnType = decltype(std::declval<Transform>().execute(FieldType(), 0, std::declval<DateLUTImpl>(), 0));
|
|
|
|
// Deduces RETURN DataType from INPUT DataType, based on return type of Transform{}.execute(INPUT_TYPE, UInt64, DateLUTImpl).
|
|
// e.g. for Transform-type that has execute()-overload with 'UInt16' input and 'UInt32' return,
|
|
// argument type is expected to be 'Date', and result type is deduced to be 'DateTime'.
|
|
template <typename FromDataType>
|
|
using TransformResultDataType = typename date_and_time_type_details::ResultDataTypeMap<TransformExecuteReturnType<typename FromDataType::FieldType>>::ResultDataType;
|
|
|
|
template <typename FromDataType>
|
|
DataTypePtr resolveReturnType(const ColumnsWithTypeAndName & arguments) const
|
|
{
|
|
using ResultDataType = TransformResultDataType<FromDataType>;
|
|
|
|
if constexpr (std::is_same_v<ResultDataType, DataTypeDate>)
|
|
return std::make_shared<DataTypeDate>();
|
|
else if constexpr (std::is_same_v<ResultDataType, DataTypeDate32>)
|
|
return std::make_shared<DataTypeDate32>();
|
|
else if constexpr (std::is_same_v<ResultDataType, DataTypeDateTime>)
|
|
return std::make_shared<DataTypeDateTime>(extractTimeZoneNameFromFunctionArguments(arguments, 2, 0, false));
|
|
else if constexpr (std::is_same_v<ResultDataType, DataTypeDateTime64>)
|
|
{
|
|
static constexpr auto target_scale = std::invoke(
|
|
[]() -> std::optional<UInt32>
|
|
{
|
|
if constexpr (std::is_base_of_v<AddNanosecondsImpl, Transform>)
|
|
return 9;
|
|
else if constexpr (std::is_base_of_v<AddMicrosecondsImpl, Transform>)
|
|
return 6;
|
|
else if constexpr (std::is_base_of_v<AddMillisecondsImpl, Transform>)
|
|
return 3;
|
|
|
|
return {};
|
|
});
|
|
|
|
auto timezone = extractTimeZoneNameFromFunctionArguments(arguments, 2, 0, false);
|
|
if (const auto* datetime64_type = typeid_cast<const DataTypeDateTime64 *>(arguments[0].type.get()))
|
|
{
|
|
const auto from_scale = datetime64_type->getScale();
|
|
return std::make_shared<DataTypeDateTime64>(std::max(from_scale, target_scale.value_or(from_scale)), std::move(timezone));
|
|
}
|
|
|
|
return std::make_shared<DataTypeDateTime64>(target_scale.value_or(DataTypeDateTime64::default_scale), std::move(timezone));
|
|
}
|
|
else if constexpr (std::is_same_v<ResultDataType, DataTypeInt8>)
|
|
throw Exception(ErrorCodes::ILLEGAL_TYPE_OF_ARGUMENT, "{} cannot be used with {}", getName(), arguments[0].type->getName());
|
|
|
|
throw Exception(ErrorCodes::LOGICAL_ERROR, "Unexpected result type in datetime add interval function");
|
|
}
|
|
|
|
bool useDefaultImplementationForConstants() const override { return true; }
|
|
ColumnNumbers getArgumentsThatAreAlwaysConstant() const override { return {2}; }
|
|
|
|
ColumnPtr executeImpl(const ColumnsWithTypeAndName & arguments, const DataTypePtr & result_type, size_t /*input_rows_count*/) const override
|
|
{
|
|
const IDataType * from_type = arguments[0].type.get();
|
|
WhichDataType which(from_type);
|
|
|
|
if (which.isDate())
|
|
return DateTimeAddIntervalImpl<DataTypeDate, TransformResultDataType<DataTypeDate>, Transform>::execute(Transform{}, arguments, result_type, 0);
|
|
else if (which.isDate32())
|
|
return DateTimeAddIntervalImpl<DataTypeDate32, TransformResultDataType<DataTypeDate32>, Transform>::execute(Transform{}, arguments, result_type, 0);
|
|
else if (which.isDateTime())
|
|
return DateTimeAddIntervalImpl<DataTypeDateTime, TransformResultDataType<DataTypeDateTime>, Transform>::execute(Transform{}, arguments, result_type, 0);
|
|
else if (const auto * datetime64_type = assert_cast<const DataTypeDateTime64 *>(from_type))
|
|
{
|
|
auto from_scale = datetime64_type->getScale();
|
|
return DateTimeAddIntervalImpl<DataTypeDateTime64, TransformResultDataType<DataTypeDateTime64>, Transform>::execute(Transform{}, arguments, result_type, from_scale);
|
|
}
|
|
else
|
|
throw Exception(ErrorCodes::ILLEGAL_TYPE_OF_ARGUMENT, "Illegal type {} of first argument of function {}", arguments[0].type->getName(), getName());
|
|
}
|
|
};
|
|
|
|
}
|