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Support 64 bit timestamp in from_unixtime (#3069)

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Support 64 bit timestamp in from_unixtime
This commit is contained in:
HangyuanLiu
2020-03-17 17:30:42 +08:00
committed by GitHub
parent 33319d659b
commit d01b58bff6
5 changed files with 51 additions and 15 deletions
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21
be/src/runtime/datetime_value.cpp
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@ -1557,13 +1557,28 @@ bool DateTimeValue::from_unixtime(int64_t timestamp, const std::string& timezone
if (timestamp < 0 || timestamp > 253402271999L) {
return false;
}
boost::local_time::time_zone_ptr local_time_zone = TimezoneDatabase::find_timezone(timezone);
if (local_time_zone == nullptr) {
return false;
}
boost::local_time::local_date_time lt(boost::posix_time::from_time_t(timestamp), local_time_zone);
int64_t current_t = timestamp;
boost::posix_time::ptime time = boost::posix_time::ptime(boost::gregorian::date(1970,1,1));
while (current_t > 0) {
int32_t seconds_to_add = 0;
if(current_t >= std::numeric_limits<int32_t>::max()) {
seconds_to_add = std::numeric_limits<int32_t>::max();
} else {
seconds_to_add = static_cast<int32_t>(current_t);
}
current_t -= seconds_to_add;
time += boost::posix_time::seconds(seconds_to_add);
}
boost::local_time::local_date_time lt(time, local_time_zone);
boost::posix_time::ptime local_ptime = lt.local_time();
_neg = 0;
_type = TIME_DATETIME;
_year = local_ptime.date().year();
@ -1573,7 +1588,7 @@ bool DateTimeValue::from_unixtime(int64_t timestamp, const std::string& timezone
_minute = local_ptime.time_of_day().minutes();
_second = local_ptime.time_of_day().seconds();
_microsecond = 0;
return true;
}