git.postgresql.org Git - postgresql.git/commitdiff

diff --git a/src/include/utils/datetime.h b/src/include/utils/datetime.h

index 548758a14930875211103386d8647ab556e6e1a3..31c78540f285fd3c88248e09a2dcfb8de67ab460 100644 (file)

--- a/src/include/utils/datetime.h

+++ b/src/include/utils/datetime.h

/*

* These are the rules for the Gregorian calendar, which was adopted in 1582.

* However, we use this calculation for all prior years as well because the

- * SQL standard specifies use of the Gregorian calendar.

+ * SQL standard specifies use of the Gregorian calendar. This prevents the

+ * date 1500-02-29 from being stored, even though it is valid in the Julian

+ * calendar.

*/

#define isleap(y) (((y) % 4) == 0 && (((y) % 100) != 0 || ((y) % 400) == 0))