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Update date/time comments.

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This commit is contained in:
Bruce Momjian
2005-07-22 05:08:26 +00:00
parent a07628b070
commit 75e5aba7fe
2 changed files with 9 additions and 5 deletions
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6
src/interfaces/ecpg/pgtypeslib/dt.h
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@ -223,14 +223,16 @@ do { \
* DAYS_PER_MONTH is very imprecise. The more accurate value is
* 365.2425/12 = 30.436875, or '30 days 10:29:06'. Right now we only
* return an integral number of days, but someday perhaps we should
* also return a 'time' value to be used as well.
* also return a 'time' value to be used as well. ISO 8601 suggests
* 30 days.
*/
#define DAYS_PER_MONTH 30 /* assumes exactly 30 days per month */
#define HOURS_PER_DAY 24 /* assume no daylight savings time changes */
/*
* This doesn't adjust for uneven daylight savings time intervals or leap
* seconds, and it crudely estimates leap years.
* seconds, and it crudely estimates leap years. A more accurate value
* for days per years is 365.2422.
*/
#define SECS_PER_YEAR (36525 * 864) /* avoid floating-point computation */
#define SECS_PER_DAY 86400