diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/backend/utils/adt/timestamp.c | 13 |
1 files changed, 5 insertions, 8 deletions
diff --git a/src/backend/utils/adt/timestamp.c b/src/backend/utils/adt/timestamp.c index 1c0bf0aa5c8..cb9faff0bbc 100644 --- a/src/backend/utils/adt/timestamp.c +++ b/src/backend/utils/adt/timestamp.c @@ -2352,20 +2352,17 @@ static inline INT128 interval_cmp_value(const Interval *interval) { INT128 span; - int64 dayfraction; int64 days; /* - * Separate time field into days and dayfraction, then add the month and - * day fields to the days part. We cannot overflow int64 days here. + * Combine the month and day fields into an integral number of days. + * Because the inputs are int32, int64 arithmetic suffices here. */ - dayfraction = interval->time % USECS_PER_DAY; - days = interval->time / USECS_PER_DAY; - days += interval->month * INT64CONST(30); + days = interval->month * INT64CONST(30); days += interval->day; - /* Widen dayfraction to 128 bits */ - span = int64_to_int128(dayfraction); + /* Widen time field to 128 bits */ + span = int64_to_int128(interval->time); /* Scale up days to microseconds, forming a 128-bit product */ int128_add_int64_mul_int64(&span, days, USECS_PER_DAY); |