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| author | Bruce Momjian <bruce@momjian.us> | 2014-11-09 20:50:15 -0500 |
|---|---|---|
| committer | Bruce Momjian <bruce@momjian.us> | 2014-11-09 20:50:15 -0500 |
| commit | 67067f9ae35fcaf7c1a6f3258043cbd0a0380473 (patch) | |
| tree | 71f8432ca8419a22da64c13472ff8a403f3a3685 /src | |
| parent | b89ee54e20e722bb91f388667586a2e0986f197b (diff) | |
| download | postgresql-67067f9ae35fcaf7c1a6f3258043cbd0a0380473.tar.gz postgresql-67067f9ae35fcaf7c1a6f3258043cbd0a0380473.zip | |
C comment: mention 1500-02-29 as an invalid date
It is invalid because the Gregorian calendar is used for all years.
Diffstat (limited to 'src')
| -rw-r--r-- | src/include/utils/datetime.h | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/src/include/utils/datetime.h b/src/include/utils/datetime.h index 548758a1493..31c78540f28 100644 --- a/src/include/utils/datetime.h +++ b/src/include/utils/datetime.h @@ -274,7 +274,9 @@ extern const int day_tab[2][13]; /* * 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)) |