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Merge pull request #34394 from holadepo/last_day

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Add toLastDayOfMonth function
This commit is contained in:
Alexey Milovidov 2022-04-04 07:02:08 +03:00 committed by GitHub
commit d9e5ca2119
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9 changed files with 137 additions and 3 deletions
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7
docs/en/sql-reference/functions/date-time-functions.md
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@ -393,6 +393,13 @@ This is a generalization of other functions named `toStartOf*`. For example,
`toStartOfInterval(t, INTERVAL 1 day)` returns the same as `toStartOfDay(t)`,
`toStartOfInterval(t, INTERVAL 15 minute)` returns the same as `toStartOfFifteenMinutes(t)` etc.
## toLastDayOfMonth {#toLastDayOfMonth}
Rounds up a date or date with time to the last day of the month.
Returns the date.
Alias: `LAST_DAY`.
## toTime {#totime}
Converts a date with time to a certain fixed date, while preserving the time.

21
src/Common/DateLUTImpl.h
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@ -360,6 +360,27 @@ public:
return toDayNum(LUTIndex(i - (lut[i].day_of_month - 1)));
}
/// Round up to last day of month.
template <typename DateOrTime>
inline Time toLastDayOfMonth(DateOrTime v) const
{
const LUTIndex i = toLUTIndex(v);
if constexpr (std::is_unsigned_v<DateOrTime> || std::is_same_v<DateOrTime, DayNum>)
return lut_saturated[i - lut[i].day_of_month + lut[i].days_in_month].date;
else
return lut[i - lut[i].day_of_month + lut[i].days_in_month].date;
}
template <typename DateOrTime>
inline auto toLastDayNumOfMonth(DateOrTime v) const
{
const LUTIndex i = toLUTIndex(v);
if constexpr (std::is_unsigned_v<DateOrTime> || std::is_same_v<DateOrTime, DayNum>)
return toDayNum(LUTIndexWithSaturation(i - lut[i].day_of_month + lut[i].days_in_month));
else
return toDayNum(LUTIndex(i - lut[i].day_of_month + lut[i].days_in_month));
}
/// Round down to start of quarter.
template <typename DateOrTime>
inline auto toFirstDayNumOfQuarter(DateOrTime v) const

8
src/Common/tests/gtest_DateLUTImpl.cpp
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@ -146,6 +146,8 @@ TEST(DateLUTTest, TimeValuesInMiddleOfRange)
EXPECT_EQ(lut.addYears(time, 10), 1884270011 /*time_t*/);
EXPECT_EQ(lut.timeToString(time), "2019-09-16 19:20:11" /*std::string*/);
EXPECT_EQ(lut.dateToString(time), "2019-09-16" /*std::string*/);
EXPECT_EQ(lut.toLastDayOfMonth(time), 1569790800 /*time_t*/);
EXPECT_EQ(lut.toLastDayNumOfMonth(time), DayNum(18169) /*DayNum*/);
}
@ -206,6 +208,8 @@ TEST(DateLUTTest, TimeValuesAtLeftBoderOfRange)
EXPECT_EQ(lut.addYears(time, 10), 315532800 /*time_t*/);
EXPECT_EQ(lut.timeToString(time), "1970-01-01 00:00:00" /*std::string*/);
EXPECT_EQ(lut.dateToString(time), "1970-01-01" /*std::string*/);
EXPECT_EQ(lut.toLastDayOfMonth(time), 2592000 /*time_t*/);
EXPECT_EQ(lut.toLastDayNumOfMonth(time), DayNum(30) /*DayNum*/);
}
TEST(DateLUTTest, TimeValuesAtRightBoderOfRangeOfOldLUT)
@ -225,7 +229,7 @@ TEST(DateLUTTest, TimeValuesAtRightBoderOfRangeOfOldLUT)
EXPECT_EQ(lut.toFirstDayOfWeek(time), 4293820800 /*time_t*/);
EXPECT_EQ(lut.toFirstDayNumOfWeek(time), DayNum(49697));
EXPECT_EQ(lut.toFirstDayOfMonth(time), 4291747200 /*time_t*/); // 2016-01-01
EXPECT_EQ(lut.toFirstDayOfMonth(time), 4291747200 /*time_t*/); // 2106-01-01
EXPECT_EQ(lut.toFirstDayNumOfMonth(time), DayNum(49673));
EXPECT_EQ(lut.toFirstDayNumOfQuarter(time), DayNum(49673) /*DayNum*/);
EXPECT_EQ(lut.toFirstDayOfQuarter(time), 4291747200 /*time_t*/);
@ -268,6 +272,8 @@ TEST(DateLUTTest, TimeValuesAtRightBoderOfRangeOfOldLUT)
EXPECT_EQ(lut.timeToString(time), "2106-01-31 01:17:53" /*std::string*/);
EXPECT_EQ(lut.dateToString(time), "2106-01-31" /*std::string*/);
EXPECT_EQ(lut.toLastDayOfMonth(time), 4294339200 /*time_t*/); // 2106-01-01
EXPECT_EQ(lut.toLastDayNumOfMonth(time), DayNum(49703));
}

24
src/Functions/DateTimeTransforms.h
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@ -179,6 +179,30 @@ struct ToStartOfMonthImpl
using FactorTransform = ZeroTransform;
};
struct ToLastDayOfMonthImpl
{
static constexpr auto name = "toLastDayOfMonth";
static inline UInt16 execute(Int64 t, const DateLUTImpl & time_zone)
{
return time_zone.toLastDayNumOfMonth(time_zone.toDayNum(t));
}
static inline UInt16 execute(UInt32 t, const DateLUTImpl & time_zone)
{
return time_zone.toLastDayNumOfMonth(time_zone.toDayNum(t));
}
static inline UInt16 execute(Int32 d, const DateLUTImpl & time_zone)
{
return time_zone.toLastDayNumOfMonth(ExtendedDayNum(d));
}
static inline UInt16 execute(UInt16 d, const DateLUTImpl & time_zone)
{
return time_zone.toLastDayNumOfMonth(DayNum(d));
}
using FactorTransform = ZeroTransform;
};
struct ToStartOfQuarterImpl
{
static constexpr auto name = "toStartOfQuarter";

2
src/Functions/registerFunctionsDateTime.cpp
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@ -23,6 +23,7 @@ void registerFunctionToISOYear(FunctionFactory &);
void registerFunctionToCustomWeek(FunctionFactory &);
void registerFunctionToModifiedJulianDay(FunctionFactory &);
void registerFunctionToStartOfMonth(FunctionFactory &);
void registerFunctionToLastDayOfMonth(FunctionFactory &);
void registerFunctionToStartOfQuarter(FunctionFactory &);
void registerFunctionToStartOfYear(FunctionFactory &);
void registerFunctionToStartOfMinute(FunctionFactory &);
@ -100,6 +101,7 @@ void registerFunctionsDateTime(FunctionFactory & factory)
registerFunctionToCustomWeek(factory);
registerFunctionToModifiedJulianDay(factory);
registerFunctionToStartOfMonth(factory);
registerFunctionToLastDayOfMonth(factory);
registerFunctionToStartOfQuarter(factory);
registerFunctionToStartOfYear(factory);
registerFunctionToStartOfNanosecond(factory);

21
src/Functions/toLastDayOfMonth.cpp Normal file
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@ -0,0 +1,21 @@
#include <Functions/FunctionFactory.h>
#include <Functions/DateTimeTransforms.h>
#include <Functions/FunctionDateOrDateTimeToSomething.h>
namespace DB
{
using FunctionToLastDayOfMonth = FunctionDateOrDateTimeToSomething<DataTypeDate, ToLastDayOfMonthImpl>;
void registerFunctionToLastDayOfMonth(FunctionFactory & factory)
{
factory.registerFunction<FunctionToLastDayOfMonth>();
/// MySQL compatibility alias.
factory.registerFunction<FunctionToLastDayOfMonth>("LAST_DAY", FunctionFactory::CaseInsensitive);
}
}

7
tests/queries/0_stateless/02251_last_day_of_month.reference Normal file
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@ -0,0 +1,7 @@
2021-09-30 2021-09-30 2021-09-30
2021-03-31 2021-03-31 2021-03-31
2021-02-28 2021-02-28 2021-02-28
2020-02-29 2020-02-29 2020-02-29
2021-12-31 2021-12-31 2021-12-31
2020-12-31 2020-12-31 2020-12-31
2020-12-31 2020-12-31

46
tests/queries/0_stateless/02251_last_day_of_month.sql Normal file
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@ -0,0 +1,46 @@
-- month with 30 days
WITH
toDate('2021-09-12') AS date_value,
toDateTime('2021-09-12 11:22:33') AS date_time_value,
toDateTime64('2021-09-12 11:22:33', 3) AS date_time_64_value
SELECT toLastDayOfMonth(date_value), toLastDayOfMonth(date_time_value), toLastDayOfMonth(date_time_64_value);
-- month with 31 days
WITH
toDate('2021-03-12') AS date_value,
toDateTime('2021-03-12 11:22:33') AS date_time_value,
toDateTime64('2021-03-12 11:22:33', 3) AS date_time_64_value
SELECT toLastDayOfMonth(date_value), toLastDayOfMonth(date_time_value), toLastDayOfMonth(date_time_64_value);
-- non leap year February
WITH
toDate('2021-02-12') AS date_value,
toDateTime('2021-02-12 11:22:33') AS date_time_value,
toDateTime64('2021-02-12 11:22:33', 3) AS date_time_64_value
SELECT toLastDayOfMonth(date_value), toLastDayOfMonth(date_time_value), toLastDayOfMonth(date_time_64_value);
-- leap year February
WITH
toDate('2020-02-12') AS date_value,
toDateTime('2020-02-12 11:22:33') AS date_time_value,
toDateTime64('2020-02-12 11:22:33', 3) AS date_time_64_value
SELECT toLastDayOfMonth(date_value), toLastDayOfMonth(date_time_value), toLastDayOfMonth(date_time_64_value);
-- December 31 for non-leap year
WITH
toDate('2021-12-12') AS date_value,
toDateTime('2021-12-12 11:22:33') AS date_time_value,
toDateTime64('2021-12-12 11:22:33', 3) AS date_time_64_value
SELECT toLastDayOfMonth(date_value), toLastDayOfMonth(date_time_value), toLastDayOfMonth(date_time_64_value);
-- December 31 for leap year
WITH
toDate('2020-12-12') AS date_value,
toDateTime('2020-12-12 11:22:33') AS date_time_value,
toDateTime64('2020-12-12 11:22:33', 3) AS date_time_64_value
SELECT toLastDayOfMonth(date_value), toLastDayOfMonth(date_time_value), toLastDayOfMonth(date_time_64_value);
-- aliases
WITH
toDate('2020-12-12') AS date_value
SELECT last_day(date_value), LAST_DAY(date_value);

4
utils/db-generator/query_db_generator.cpp
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@ -229,7 +229,7 @@ std::map<std::string, FuncRet> func_to_return_type = {
{"torelativeweeknum", FuncRet(Type::i, "")}, {"torelativedaynum", FuncRet(Type::i, "")}, {"torelativehournum", FuncRet(Type::i, "")},
{"torelativeminutenum", FuncRet(Type::i, "")}, {"torelativesecondsnum", FuncRet(Type::i, "")}, {"datediff", FuncRet(Type::d | Type::dt, "")},
{"formatdatetime", FuncRet(Type::s, "")}, {"now", FuncRet(Type::dt | Type::d, "now()")}, {"today", FuncRet(Type::d | Type::dt, "today()")},
{"yesterday", FuncRet(Type::d | Type::dt, "yesterday()")}
{"yesterday", FuncRet(Type::d | Type::dt, "yesterday()")}, {"tolastdayofmonth", FuncRet(Type::dt | Type::d, "")}
};
std::set<std::string> func_args_same_types = {
@ -253,7 +253,7 @@ std::map<std::string, ColumnType> func_to_param_type = {
{"tostartofinterval", Type::d | Type::dt}, {"totime", Type::d | Type::dt}, {"torelativehonthnum", Type::d | Type::dt},
{"torelativeweeknum", Type::d | Type::dt}, {"torelativedaynum", Type::d | Type::dt}, {"torelativehournum", Type::d | Type::dt},
{"torelativeminutenum", Type::d | Type::dt}, {"torelativesecondnum", Type::d | Type::dt}, {"datediff", Type::d | Type::dt},
{"formatdatetime", Type::dt}
{"formatdatetime", Type::dt}, {"tolastdayofmonth", Type::d | Type::dt}
};