Merge svlasenko@bk-internal.mysql.com:/home/bk/mysql-5.0

into  selena.:H:/MYSQL/src/#15634-mysql-5.0

sql/field.cc

@@ -5239,7 +5239,7 @@ int Field_date::store(double nr)
   else
     tmp= (longlong) rint(nr);
 
-  return Field_date::store(tmp);
+  return Field_date::store(tmp, TRUE);
 }
 
 
@@ -5261,6 +5261,9 @@ int Field_date::store(longlong nr, bool unsigned_val)
     error= 2;
   }
 
+  if (nr >= 19000000000000.0 && nr <= 99991231235959.0)
+    nr=floor(nr/1000000.0);			// Timestamp to date
+
   if (error)
     set_datetime_warning(MYSQL_ERROR::WARN_LEVEL_WARN,
                          error == 2 ? ER_WARN_DATA_OUT_OF_RANGE :