Re: Datetime patch

The newest version of this patch was applied by Tom. Thanks.

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greg(at)turnstep(dot)com wrote:
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> Here is another attempt at the datetime fix, to stop the ambiguity
> for dates like "01-13-2003". I put the > 12 month validation in because
> otherwise it is still read in as a "month", but it rolls over.
> In other words, '2003-14-03' becomes '2004-02-03'
>
>
>
> --
> Greg Sabino Mullane greg(at)turnstep(dot)com
> PGP Key: 0x14964AC8 200306301327
>
>
>
>
>
> Index: datetime.c
> ===================================================================
> RCS file: /projects/cvsroot/pgsql-server/src/backend/utils/adt/datetime.c,v
> retrieving revision 1.106
> diff -c -r1.106 datetime.c
> *** datetime.c 25 Jun 2003 21:14:14 -0000 1.106
> --- datetime.c 30 Jun 2003 17:26:22 -0000
> ***************
> *** 2379,2440 ****
> ***/
> else if (flen >= 4)
> {
> ! *tmask = DTK_M(YEAR);
>
> ! /* already have a year? then see if we can substitute... */
> ! if ((fmask & DTK_M(YEAR)) && (!(fmask & DTK_M(DAY)))
> ! && ((tm->tm_year >= 1) && (tm->tm_year <= 31)))
> {
> ! tm->tm_mday = tm->tm_year;
> ! *tmask = DTK_M(DAY);
> }
> !
> ! 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 */
> ! else if ((EuroDates || (fmask & DTK_M(MONTH)))
> ! && (!(fmask & DTK_M(YEAR)) && !(fmask & DTK_M(DAY)))
> ! && ((val >= 1) && (val <= 31)))
> {
> *tmask = DTK_M(DAY);
> tm->tm_mday = val;
> }
> ! else if ((!(fmask & DTK_M(MONTH)))
> ! && ((val >= 1) && (val <= 12)))
> {
> *tmask = DTK_M(MONTH);
> tm->tm_mon = val;
> }
> ! else if ((!(fmask & DTK_M(DAY)))
> ! && ((val >= 1) && (val <= 31)))
> {
> *tmask = DTK_M(DAY);
> tm->tm_mday = val;
> }
> !
> ! /*
> ! * 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;
> !
> ! /* adjust ONLY if exactly two digits... */
> ! *is2digits = (flen == 2);
> }
> else
> ! return -1;
>
> return 0;
> } /* DecodeNumber() */
> --- 2379,2447 ----
> ***/
> else if (flen >= 4)
> {
> ! /*
> ! * If no month or day, start of YYYY-MM-DD
> ! * If have month AND day, end of MM-DD-YYYY or DD-MM-YYYY
> ! * If neither case, throw an error
> ! */
>
> ! if ((!(fmask & DTK_M(YEAR)))
> ! && (((!(fmask & DTK_M(DAY))) && (!(fmask & DTK_M(MONTH))))
> ! ||
> ! ((fmask & DTK_M(DAY)) && (fmask & DTK_M(MONTH)))))
> {
> ! *tmask = DTK_M(YEAR);
> ! tm->tm_year = val;
> }
> ! else
> ! return -1;
> }
> ! /* If we already have a day AND month, must be a 2-digit year */
> ! else if ((fmask & DTK_M(DAY)) && (fmask & DTK_M(MONTH)))
> {
> ! *tmask = DTK_M(YEAR);
> ! tm->tm_year = val;
> ! *is2digits = TRUE;
> }
> !
> ! /* If we already have a year and a month, must be day */
> ! else if ((fmask & DTK_M(YEAR)) && (fmask & DTK_M(MONTH)))
> {
> *tmask = DTK_M(DAY);
> tm->tm_mday = val;
> }
> ! /* A year and a day is currently an error, as YYYY-DD-MM is not allowed */
> ! else if ((fmask & DTK_M(YEAR)) && (fmask & DTK_M(MONTH)))
> ! return -1;
> ! /* If have year or day, set the month */
> ! else if ((fmask & DTK_M(YEAR)) || (fmask & DTK_M(DAY)))
> {
> + /* Do not allow month to roll over */
> + if (val > 12)
> + return -1;
> *tmask = DTK_M(MONTH);
> tm->tm_mon = val;
> }
> ! /* If have a month, set the day */
> ! else if ((fmask & DTK_M(MONTH)))
> {
> *tmask = DTK_M(DAY);
> tm->tm_mday = val;
> }
> ! /* If using EuroDates, this must be the day, otherwise month */
> ! else if (EuroDates)
> {
> ! *tmask = DTK_M(DAY);
> ! tm->tm_mday = val;
> }
> else
> ! {
> ! /* Do not allow month to roll over */
> ! if (val > 12)
> ! return -1;
> ! *tmask = DTK_M(MONTH);
> ! tm->tm_mon = val;
> ! }
>
> return 0;
> } /* DecodeNumber() */
>
>
>
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