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Diffstat (limited to 'src/backend/utils/adt/datetime.c')
| -rw-r--r-- | src/backend/utils/adt/datetime.c | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/src/backend/utils/adt/datetime.c b/src/backend/utils/adt/datetime.c index cdbf72cf699..2ea21b7028a 100644 --- a/src/backend/utils/adt/datetime.c +++ b/src/backend/utils/adt/datetime.c @@ -280,14 +280,16 @@ strtoi(const char *nptr, char **endptr, int base) * and calendar date for all non-negative Julian days * (i.e. from Nov 24, -4713 on). * - * These routines will be used by other date/time packages - * - thomas 97/02/25 - * * Rewritten to eliminate overflow problems. This now allows the * routines to work correctly for all Julian day counts from * 0 to 2147483647 (Nov 24, -4713 to Jun 3, 5874898) assuming * a 32-bit integer. Longer types should also work to the limits * of their precision. + * + * Actually, date2j() will work sanely, in the sense of producing + * valid negative Julian dates, significantly before Nov 24, -4713. + * We rely on it to do so back to Nov 1, -4713; see IS_VALID_JULIAN() + * and associated commentary in timestamp.h. */ int |