Change rules for interpreting date/time input to disallow 1 and 3 character

 years. Rejects dates like '0.085', which were accepted previously.

diff --git a/src/backend/utils/adt/datetime.c b/src/backend/utils/adt/datetime.c
index 6806bb8f4f9fde91308f0637394fd80b3d7ad3c3..6d52d2f2817676ca0f9204afda1520579a212c1f 100644 (file)
--- a/src/backend/utils/adt/datetime.c
+++ b/src/backend/utils/adt/datetime.c
@@ -8,7 +8,7 @@
  *
  *
  * IDENTIFICATION
- *   $Header: /cvsroot/pgsql/src/backend/utils/adt/datetime.c,v 1.44 2000/03/16 14:36:51 thomas Exp $
+ *   $Header: /cvsroot/pgsql/src/backend/utils/adt/datetime.c,v 1.45 2000/03/29 03:57:18 thomas Exp $
  *
  *-------------------------------------------------------------------------
  */
@@ -1367,8 +1367,11 @@ DecodeNumber(int flen, char *str, int fmask,
     * more, but we now test first for a three-digit doy so anything
     * bigger than two digits had better be an explicit year. - thomas
     * 1999-01-09
+    * Back to requiring a 4 digit year.
+    * We accept a two digit year farther down.
+    * - thomas 2000-03-28
     */
-   else if (flen > 2)
+   else if (flen >= 4)
    {
        *tmask = DTK_M(YEAR);
 
@@ -1382,14 +1385,16 @@ DecodeNumber(int flen, char *str, int fmask,
 
        tm->tm_year = val;
    }
+
    /* already have year? then could be month */
    else if ((fmask & DTK_M(YEAR)) && (!(fmask & DTK_M(MONTH)))
             && ((val >= 1) && (val <= 12)))
    {
        *tmask = DTK_M(MONTH);
        tm->tm_mon = val;
-       /* no year and EuroDates enabled? then could be day */
+
    }
+   /* no year and EuroDates enabled? then could be day */
    else if ((EuroDates || (fmask & DTK_M(MONTH)))
             && (!(fmask & DTK_M(YEAR)) && !(fmask & DTK_M(DAY)))
             && ((val >= 1) && (val <= 31)))
@@ -1409,7 +1414,11 @@ DecodeNumber(int flen, char *str, int fmask,
        *tmask = DTK_M(DAY);
        tm->tm_mday = val;
    }
-   else if (!(fmask & DTK_M(YEAR)))
+   /* Check for 2 or 4 or more digits, but currently we reach here
+    * only if two digits. - thomas 2000-03-28
+    */
+   else if (!(fmask & DTK_M(YEAR))
+            && ((flen >= 4) || (flen == 2)))
    {
        *tmask = DTK_M(YEAR);
        tm->tm_year = val;