Patch applied, with documentation updates.
---------------------------------------------------------------------------
Tom Lane wrote:
> Inserting into a time field with limited precision rounds off, which
> is good except for this case:
>
> regression=# select '23:59:59.9'::time(0);
> time
> ----------
> 24:00:00
> (1 row)
>
> This is bad because:
>
> regression=# select '24:00:00'::time(0);
> ERROR: date/time field value out of range: "24:00:00"
>
> which means that data originally accepted will fail to dump and reload.
>
> I see this behavior in all versions back to 7.3. 7.2 was even more
> broken:
>
> regression=# select '23:59:59.9'::time(0);
> time
> ----------
> 00:00:00
> (1 row)
>
> I think the correct behavior has to be to check for overflow again
> after rounding off. Alternatively: why are we forbidding the value
> 24:00:00 anyway? Is there a reason not to allow the hours field
> to exceed 23?
>
> regards, tom lane
>
> ---------------------------(end of broadcast)---------------------------
> TIP 6: explain analyze is your friend
>
--
Bruce Momjian | http://candle.pha.pa.us
pgman@candle.pha.pa.us | (610) 359-1001
+ If your life is a hard drive, | 13 Roberts Road
+ Christ can be your backup. | Newtown Square, Pennsylvania 19073
Index: doc/src/sgml/datatype.sgml
===================================================================
RCS file: /cvsroot/pgsql/doc/src/sgml/datatype.sgml,v
retrieving revision 1.160
diff -c -c -r1.160 datatype.sgml
*** doc/src/sgml/datatype.sgml 2 Oct 2005 23:50:06 -0000 1.160
--- doc/src/sgml/datatype.sgml 14 Oct 2005 03:09:07 -0000
***************
*** 1368,1374 ****
<entry>8 bytes</entry>
<entry>times of day only</entry>
<entry>00:00:00.00</entry>
! <entry>23:59:59.99</entry>
<entry>1 microsecond / 14 digits</entry>
</row>
<row>
--- 1368,1374 ----
<entry>8 bytes</entry>
<entry>times of day only</entry>
<entry>00:00:00.00</entry>
! <entry>24:00:00</entry>
<entry>1 microsecond / 14 digits</entry>
</row>
<row>
***************
*** 1376,1382 ****
<entry>12 bytes</entry>
<entry>times of day only, with time zone</entry>
<entry>00:00:00.00+12</entry>
! <entry>23:59:59.99-12</entry>
<entry>1 microsecond / 14 digits</entry>
</row>
</tbody>
--- 1376,1382 ----
<entry>12 bytes</entry>
<entry>times of day only, with time zone</entry>
<entry>00:00:00.00+12</entry>
! <entry>24:00:00-12</entry>
<entry>1 microsecond / 14 digits</entry>
</row>
</tbody>
Index: src/backend/utils/adt/datetime.c
===================================================================
RCS file: /cvsroot/pgsql/src/backend/utils/adt/datetime.c,v
retrieving revision 1.158
diff -c -c -r1.158 datetime.c
*** src/backend/utils/adt/datetime.c 9 Oct 2005 17:21:46 -0000 1.158
--- src/backend/utils/adt/datetime.c 14 Oct 2005 03:09:09 -0000
***************
*** 1114,1120 ****
* Check upper limit on hours; other limits
checked in
* DecodeTime()
*/
! if (tm->tm_hour > 23)
return DTERR_FIELD_OVERFLOW;
break;
--- 1114,1122 ----
* Check upper limit on hours; other limits
checked in
* DecodeTime()
*/
! /* test for > 24:00:00 */
! if (tm->tm_hour > 24 ||
! (tm->tm_hour == 24 && (tm->tm_min > 0
|| tm->tm_sec > 0)))
return DTERR_FIELD_OVERFLOW;
break;
***************
*** 2243,2256 ****
else if (mer == PM && tm->tm_hour != 12)
tm->tm_hour += 12;
#ifdef HAVE_INT64_TIMESTAMP
! if (tm->tm_hour < 0 || tm->tm_hour > 23 || tm->tm_min < 0 ||
! tm->tm_min > 59 || tm->tm_sec < 0 || tm->tm_sec > 60 ||
*fsec < INT64CONST(0) || *fsec >= USECS_PER_SEC)
return DTERR_FIELD_OVERFLOW;
#else
! if (tm->tm_hour < 0 || tm->tm_hour > 23 || tm->tm_min < 0 ||
! tm->tm_min > 59 || tm->tm_sec < 0 || tm->tm_sec > 60 ||
*fsec < 0 || *fsec >= 1)
return DTERR_FIELD_OVERFLOW;
#endif
--- 2245,2260 ----
else if (mer == PM && tm->tm_hour != 12)
tm->tm_hour += 12;
+ if (tm->tm_hour < 0 || tm->tm_min < 0 || tm->tm_min > 59 ||
+ tm->tm_sec < 0 || tm->tm_sec > 60 || tm->tm_hour > 24 ||
+ /* test for > 24:00:00 */
+ (tm->tm_hour == 24 && (tm->tm_min > 0 || tm->tm_sec > 0 ||
#ifdef HAVE_INT64_TIMESTAMP
! *fsec > INT64CONST(0))) ||
*fsec < INT64CONST(0) || *fsec >= USECS_PER_SEC)
return DTERR_FIELD_OVERFLOW;
#else
! *fsec > 0)) ||
*fsec < 0 || *fsec >= 1)
return DTERR_FIELD_OVERFLOW;
#endif
Index: src/backend/utils/adt/nabstime.c
===================================================================
RCS file: /cvsroot/pgsql/src/backend/utils/adt/nabstime.c,v
retrieving revision 1.143
diff -c -c -r1.143 nabstime.c
*** src/backend/utils/adt/nabstime.c 24 Sep 2005 22:54:38 -0000 1.143
--- src/backend/utils/adt/nabstime.c 14 Oct 2005 03:09:09 -0000
***************
*** 184,195 ****
AbsoluteTime sec;
/* validate, before going out of range on some members */
! if (tm->tm_year < 1901 || tm->tm_year > 2038
! || tm->tm_mon < 1 || tm->tm_mon > 12
! || tm->tm_mday < 1 || tm->tm_mday > 31
! || tm->tm_hour < 0 || tm->tm_hour > 23
! || tm->tm_min < 0 || tm->tm_min > 59
! || tm->tm_sec < 0 || tm->tm_sec > 60)
return INVALID_ABSTIME;
day = date2j(tm->tm_year, tm->tm_mon, tm->tm_mday) - UNIX_EPOCH_JDATE;
--- 184,197 ----
AbsoluteTime sec;
/* validate, before going out of range on some members */
! if (tm->tm_year < 1901 || tm->tm_year > 2038 ||
! tm->tm_mon < 1 || tm->tm_mon > 12 ||
! tm->tm_mday < 1 || tm->tm_mday > 31 ||
! tm->tm_hour < 0 ||
! tm->tm_hour > 24 || /* test for > 24:00:00 */
! (tm->tm_hour == 24 && (tm->tm_min > 0 || tm->tm_sec > 0)) ||
! tm->tm_min < 0 || tm->tm_min > 59 ||
! tm->tm_sec < 0 || tm->tm_sec > 60)
return INVALID_ABSTIME;
day = date2j(tm->tm_year, tm->tm_mon, tm->tm_mday) - UNIX_EPOCH_JDATE;
Index: src/interfaces/ecpg/pgtypeslib/dt_common.c
===================================================================
RCS file: /cvsroot/pgsql/src/interfaces/ecpg/pgtypeslib/dt_common.c,v
retrieving revision 1.30
diff -c -c -r1.30 dt_common.c
*** src/interfaces/ecpg/pgtypeslib/dt_common.c 9 Oct 2005 17:21:45 -0000
1.30
--- src/interfaces/ecpg/pgtypeslib/dt_common.c 14 Oct 2005 03:09:11 -0000
***************
*** 2095,2101 ****
* Check upper limit on hours; other limits
checked in
* DecodeTime()
*/
! if (tm->tm_hour > 23)
return -1;
break;
--- 2095,2103 ----
* Check upper limit on hours; other limits
checked in
* DecodeTime()
*/
! /* test for > 24:00:00 */
! if (tm->tm_hour > 24 ||
! (tm->tm_hour == 24 && (tm->tm_min > 0
|| tm->tm_sec > 0)))
return -1;
break;
***************
*** 3161,3167 ****
err = 1;
*minute = 0;
}
! if (*hour > 23)
{
err = 1;
*hour = 0;
--- 3163,3170 ----
err = 1;
*minute = 0;
}
! if (*hour > 24 || /* test for > 24:00:00 */
! (*hour == 24 && (*minute > 0 || *second > 0)))
{
err = 1;
*hour = 0;
---------------------------(end of broadcast)---------------------------
TIP 9: In versions below 8.0, the planner will ignore your desire to
choose an index scan if your joining column's datatypes do not
match
