Fix up "Postgres-style" time interval representation when fields have

 mixed-signs. Previous effort left way too many minus signs, and was at
 least as broken as the one before that :(
Clean up "ISO-style" time interval representation to omit zero fields if
 there is at least one non-zero field. Supress some leading plus signs
 when not necessary for clarity.
Replace every #ifdef __CYGWIN__ block with a cleaner TIMEZONE_GLOBAL macro
 defined in datetime.h.

6 files changed, 146 insertions, 160 deletions

diff --git a/src/backend/utils/adt/datetime.c b/src/backend/utils/adt/datetime.c
index 659cc584ba3..4dbd05eb8fd 100644
--- 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 1.58 2001/01/17 16:46:56 thomas Exp $
+ *	  $Header: /cvsroot/pgsql/src/backend/utils/adt/datetime.c,v 1.59 2001/01/18 07:22:35 thomas Exp $
  *
  *-------------------------------------------------------------------------
  */
@@ -880,11 +880,7 @@ DecodeDateTime(char **field, int *ftype, int nf,
 				*tzp = -(tm->tm_gmtoff);		/* tm_gmtoff is
 												 * Sun/DEC-ism */
 # elif defined(HAVE_INT_TIMEZONE)
-#  ifdef __CYGWIN__
-				*tzp = ((tm->tm_isdst > 0) ? (_timezone - 3600) : _timezone);
-#  else
-				*tzp = ((tm->tm_isdst > 0) ? (timezone - 3600) : timezone);
-#  endif /* __CYGWIN__ */
+				*tzp = ((tm->tm_isdst > 0) ? (TIMEZONE_GLOBAL - 3600) : TIMEZONE_GLOBAL);
 # endif /* HAVE_INT_TIMEZONE */
 
 #else /* not (HAVE_TM_ZONE || HAVE_INT_TIMEZONE) */
@@ -1128,11 +1124,7 @@ DecodeTimeOnly(char **field, int *ftype, int nf,
 # if defined(HAVE_TM_ZONE)
 		*tzp = -(tmp->tm_gmtoff);		/* tm_gmtoff is Sun/DEC-ism */
 # elif defined(HAVE_INT_TIMEZONE)
-#  ifdef __CYGWIN__
-		*tzp = ((tmp->tm_isdst > 0) ? (_timezone - 3600) : _timezone);
-#  else
-		*tzp = ((tmp->tm_isdst > 0) ? (timezone - 3600) : timezone);
-#  endif
+		*tzp = ((tmp->tm_isdst > 0) ? (TIMEZONE_GLOBAL - 3600) : TIMEZONE_GLOBAL);
 # endif
 
 #else /* not (HAVE_TM_ZONE || HAVE_INT_TIMEZONE) */
@@ -2252,12 +2244,14 @@ EncodeTimeSpan(struct tm * tm, double fsec, int style, char *str)
 				is_before = (tm->tm_mday < 0);
 				is_nonzero = TRUE;
 			}
+			if ((!is_nonzero) || (tm->tm_hour != 0) || (tm->tm_min != 0)
+				|| (tm->tm_sec != 0) || (fsec != 0))
 			{
 				int minus = ((tm->tm_hour < 0) || (tm->tm_min < 0)
 							 || (tm->tm_sec < 0) || (fsec < 0));
 
 				sprintf(cp, "%s%s%02d:%02d", (is_nonzero ? " " : ""),
-						(minus ? "-" : (is_nonzero ? "+" : "")),
+						(minus ? "-" : (is_before ? "+" : "")),
 						abs(tm->tm_hour), abs(tm->tm_min));
 				cp += strlen(cp);
 				/* Mark as "non-zero" since the fields are now filled in */
@@ -2289,7 +2283,9 @@ EncodeTimeSpan(struct tm * tm, double fsec, int style, char *str)
 
 			if (tm->tm_year != 0)
 			{
-				int year = ((tm->tm_year < 0) ? -(tm->tm_year) : tm->tm_year);
+				int year = tm->tm_year;
+				if (tm->tm_year < 0)
+					year = -year;
 
 				sprintf(cp, "%d year%s", year,
 						((year != 1) ? "s" : ""));
@@ -2300,7 +2296,9 @@ EncodeTimeSpan(struct tm * tm, double fsec, int style, char *str)
 
 			if (tm->tm_mon != 0)
 			{
-				int mon = ((is_before && (tm->tm_mon > 0)) ? -(tm->tm_mon) : tm->tm_mon);
+				int mon = tm->tm_mon;
+				if (is_before || ((!is_nonzero) && (tm->tm_mon < 0)))
+					mon = -mon;
 
 				sprintf(cp, "%s%d mon%s", (is_nonzero ? " " : ""), mon,
 						((mon != 1) ? "s" : ""));
@@ -2312,7 +2310,9 @@ EncodeTimeSpan(struct tm * tm, double fsec, int style, char *str)
 
 			if (tm->tm_mday != 0)
 			{
-				int day = ((is_before && (tm->tm_mday > 0)) ? -(tm->tm_mday) : tm->tm_mday);
+				int day = tm->tm_mday;
+				if (is_before || ((!is_nonzero) && (tm->tm_mday < 0)))
+					day = -day;
 
 				sprintf(cp, "%s%d day%s", (is_nonzero ? " " : ""), day,
 						((day != 1) ? "s" : ""));
@@ -2323,7 +2323,9 @@ EncodeTimeSpan(struct tm * tm, double fsec, int style, char *str)
 			}
 			if (tm->tm_hour != 0)
 			{
-				int hour = ((is_before && (tm->tm_hour > 0)) ? -(tm->tm_hour) : tm->tm_hour);
+				int hour = tm->tm_hour;
+				if (is_before || ((!is_nonzero) && (tm->tm_hour < 0)))
+					hour = -hour;
 
 				sprintf(cp, "%s%d hour%s", (is_nonzero ? " " : ""), hour,
 						((hour != 1) ? "s" : ""));
@@ -2335,7 +2337,9 @@ EncodeTimeSpan(struct tm * tm, double fsec, int style, char *str)
 
 			if (tm->tm_min != 0)
 			{
-				int min = ((is_before && (tm->tm_min > 0)) ? -(tm->tm_min) : tm->tm_min);
+				int min = tm->tm_min;
+				if (is_before || ((!is_nonzero) && (tm->tm_min < 0)))
+					min = -min;
 
 				sprintf(cp, "%s%d min%s", (is_nonzero ? " " : ""), min,
 						((min != 1) ? "s" : ""));
@@ -2348,9 +2352,13 @@ EncodeTimeSpan(struct tm * tm, double fsec, int style, char *str)
 			/* fractional seconds? */
 			if (fsec != 0)
 			{
+				double sec;
 				fsec += tm->tm_sec;
-				sprintf(cp, "%s%.2f secs", (is_nonzero ? " " : ""),
-						((is_before && (fsec > 0)) ? -(fsec) : fsec));
+				sec = fsec;
+				if (is_before || ((!is_nonzero) && (fsec < 0)))
+					sec = -sec;
+
+				sprintf(cp, "%s%.2f secs", (is_nonzero ? " " : ""), sec);
 				cp += strlen(cp);
 				if (! is_nonzero)
 					is_before = (fsec < 0);
@@ -2360,7 +2368,9 @@ EncodeTimeSpan(struct tm * tm, double fsec, int style, char *str)
 			}
 			else if (tm->tm_sec != 0)
 			{
-				int sec = ((is_before && (tm->tm_sec > 0)) ? -(tm->tm_sec) : tm->tm_sec);
+				int sec = tm->tm_sec;
+				if (is_before || ((!is_nonzero) && (tm->tm_sec < 0)))
+					sec = -sec;
 
 				sprintf(cp, "%s%d sec%s", (is_nonzero ? " " : ""), sec,
 						((sec != 1) ? "s" : ""));
diff --git a/src/backend/utils/adt/formatting.c b/src/backend/utils/adt/formatting.c
index 7996c47f58f..79699839c33 100644
--- a/src/backend/utils/adt/formatting.c
+++ b/src/backend/utils/adt/formatting.c
@@ -1,7 +1,7 @@
 /* -----------------------------------------------------------------------
  * formatting.c
  *
- * $Header: /cvsroot/pgsql/src/backend/utils/adt/formatting.c,v 1.29 2001/01/17 16:46:56 thomas Exp $
+ * $Header: /cvsroot/pgsql/src/backend/utils/adt/formatting.c,v 1.30 2001/01/18 07:22:36 thomas Exp $
  *
  *
  *	 Portions Copyright (c) 1999-2000, PostgreSQL, Inc
@@ -2931,13 +2931,7 @@ to_timestamp(PG_FUNCTION_ARGS)
 # if defined(HAVE_TM_ZONE)
 		tz = -(tm->tm_gmtoff);	/* tm_gmtoff is Sun/DEC-ism */
 # elif defined(HAVE_INT_TIMEZONE)
-
-#  ifdef __CYGWIN__
-		tz = ((tm->tm_isdst > 0) ? (_timezone - 3600) : _timezone);
-#  else
-		tz = ((tm->tm_isdst > 0) ? (timezone - 3600) : timezone);
-#  endif
-
+		tz = ((tm->tm_isdst > 0) ? (TIMEZONE_GLOBAL - 3600) : TIMEZONE_GLOBAL);
 # endif
 
 #else /* not (HAVE_TM_ZONE || HAVE_INT_TIMEZONE) */
diff --git a/src/backend/utils/adt/nabstime.c b/src/backend/utils/adt/nabstime.c
index 19c2068fe94..972f5e98a6b 100644
--- a/src/backend/utils/adt/nabstime.c
+++ b/src/backend/utils/adt/nabstime.c
@@ -9,7 +9,7 @@
  *
  *
  * IDENTIFICATION
- *	  $Header: /cvsroot/pgsql/src/backend/utils/adt/nabstime.c,v 1.78 2001/01/17 16:46:56 thomas Exp $
+ *	  $Header: /cvsroot/pgsql/src/backend/utils/adt/nabstime.c,v 1.79 2001/01/18 07:22:36 thomas Exp $
  *
  * NOTES
  *
@@ -160,12 +160,7 @@ GetCurrentAbsoluteTime(void)
 		tm = localtime(&now);
 
 		CDayLight = tm->tm_isdst;
-		CTimeZone =
-# ifdef __CYGWIN__
-			((tm->tm_isdst > 0) ? (_timezone - 3600) : _timezone);
-# else
-			((tm->tm_isdst > 0) ? (timezone - 3600) : timezone);
-# endif
+		CTimeZone = ((tm->tm_isdst > 0) ? (TIMEZONE_GLOBAL - 3600) : TIMEZONE_GLOBAL);
 		strcpy(CTZName, tzname[tm->tm_isdst]);
 #else /* neither HAVE_TM_ZONE nor HAVE_INT_TIMEZONE */
 		CTimeZone = tb.timezone * 60;
@@ -244,11 +239,8 @@ abstime2tm(AbsoluteTime _time, int *tzp, struct tm * tm, char *tzn)
 	}
 # elif defined(HAVE_INT_TIMEZONE)
 	if (tzp != NULL)
-#  ifdef __CYGWIN__
-		*tzp = ((tm->tm_isdst > 0) ? (_timezone - 3600) : _timezone);
-#  else
-		*tzp = ((tm->tm_isdst > 0) ? (timezone - 3600) : timezone);
-#  endif
+		*tzp = ((tm->tm_isdst > 0) ? (TIMEZONE_GLOBAL - 3600) : TIMEZONE_GLOBAL);
+
 	if (tzn != NULL)
 	{
 
diff --git a/src/backend/utils/adt/timestamp.c b/src/backend/utils/adt/timestamp.c
index 144aec0cbe7..dd3a5f47e15 100644
--- a/src/backend/utils/adt/timestamp.c
+++ b/src/backend/utils/adt/timestamp.c
@@ -8,7 +8,7 @@
  *
  *
  * IDENTIFICATION
- *	  $Header: /cvsroot/pgsql/src/backend/utils/adt/timestamp.c,v 1.42 2001/01/17 16:46:56 thomas Exp $
+ *	  $Header: /cvsroot/pgsql/src/backend/utils/adt/timestamp.c,v 1.43 2001/01/18 07:22:36 thomas Exp $
  *
  *-------------------------------------------------------------------------
  */
@@ -324,9 +324,10 @@ timestamp2tm(Timestamp dt, int *tzp, struct tm * tm, double *fsec, char **tzn)
 /* XXX HACK
  * Argh! My Linux box puts in a 1 second offset for dates less than 1970
  *	but only if the seconds field was non-zero. So, don't copy the seconds
- *	field and instead carry forward from the original - tgl 97/06/18
+ *	field and instead carry forward from the original - thomas 97/06/18
  * Note that GNU/Linux uses the standard freeware zic package as do
  *	many other platforms so this may not be GNU/Linux/ix86-specific.
+ * Still shows a problem on my up to date Linux box - thomas 2001-01-17
  */
 			tm->tm_sec = tx->tm_sec;
 #endif
@@ -340,11 +341,7 @@ timestamp2tm(Timestamp dt, int *tzp, struct tm * tm, double *fsec, char **tzn)
 			if (tzn != NULL)
 				*tzn = (char *) tm->tm_zone;
 # elif defined(HAVE_INT_TIMEZONE)
-#  ifdef __CYGWIN__
-			*tzp = ((tm->tm_isdst > 0) ? (_timezone - 3600) : _timezone);
-#  else
-			*tzp = ((tm->tm_isdst > 0) ? (timezone - 3600) : timezone);
-#  endif
+			*tzp = ((tm->tm_isdst > 0) ? (TIMEZONE_GLOBAL - 3600) : TIMEZONE_GLOBAL);
 			if (tzn != NULL)
 				*tzn = tzname[(tm->tm_isdst > 0)];
 # endif
@@ -1084,13 +1081,7 @@ timestamp_pl_span(PG_FUNCTION_ARGS)
 # if defined(HAVE_TM_ZONE)
 					tz = -(tm->tm_gmtoff);	/* tm_gmtoff is Sun/DEC-ism */
 # elif defined(HAVE_INT_TIMEZONE)
-
-#  ifdef __CYGWIN__
-					tz = ((tm->tm_isdst > 0) ? (_timezone - 3600) : _timezone);
-#  else
-					tz = ((tm->tm_isdst > 0) ? (timezone - 3600) : timezone);
-#  endif
-
+					tz = ((tm->tm_isdst > 0) ? (TIMEZONE_GLOBAL - 3600) : TIMEZONE_GLOBAL);
 # endif
 
 #else /* not (HAVE_TM_ZONE || HAVE_INT_TIMEZONE) */
@@ -1733,13 +1724,7 @@ timestamp_trunc(PG_FUNCTION_ARGS)
 # if defined(HAVE_TM_ZONE)
 				tz = -(tm->tm_gmtoff);	/* tm_gmtoff is Sun/DEC-ism */
 # elif defined(HAVE_INT_TIMEZONE)
-
-#  ifdef __CYGWIN__
-				tz = ((tm->tm_isdst > 0) ? (_timezone - 3600) : _timezone);
-#  else
-				tz = ((tm->tm_isdst > 0) ? (timezone - 3600) : timezone);
-#  endif
-
+				tz = ((tm->tm_isdst > 0) ? (TIMEZONE_GLOBAL - 3600) : TIMEZONE_GLOBAL);
 # endif
 
 #else /* not (HAVE_TM_ZONE || HAVE_INT_TIMEZONE) */
diff --git a/src/include/utils/datetime.h b/src/include/utils/datetime.h
index 15d8ab92842..9e28436a31b 100644
--- a/src/include/utils/datetime.h
+++ b/src/include/utils/datetime.h
@@ -9,7 +9,7 @@
  * Portions Copyright (c) 1996-2000, PostgreSQL, Inc
  * Portions Copyright (c) 1994, Regents of the University of California
  *
- * $Id: datetime.h,v 1.15 2000/06/08 22:37:58 momjian Exp $
+ * $Id: datetime.h,v 1.16 2001/01/18 07:22:42 thomas Exp $
  *
  *-------------------------------------------------------------------------
  */
@@ -193,6 +193,11 @@ do { \
 		t -= rint(q * u); \
 } while(0)
 
+#ifdef __CYGWIN__
+#define TIMEZONE_GLOBAL _timezone
+#else
+#define TIMEZONE_GLOBAL timezone
+#endif
 
 /*
  * Date/time validation
diff --git a/src/test/regress/expected/interval.out b/src/test/regress/expected/interval.out
index d76c922a141..8a4eb275906 100644
--- a/src/test/regress/expected/interval.out
+++ b/src/test/regress/expected/interval.out
@@ -6,13 +6,13 @@ SET DATESTYLE = DEFAULT;
 SELECT INTERVAL '01:00' AS "One hour";
  One hour 
 ----------
- +01:00
+ 01:00
 (1 row)
 
 SELECT INTERVAL '+02:00' AS "Two hours";
  Two hours 
 -----------
- +02:00
+ 02:00
 (1 row)
 
 SELECT INTERVAL '-08:00' AS "Eight hours";
@@ -40,9 +40,9 @@ SELECT INTERVAL '-1 days +02:03' AS "22 hours ago...";
 (1 row)
 
 SELECT INTERVAL '10 years -11 month -12 days +13:14' AS "9 years...";
-        9 years...        
---------------------------
- 9 years 1 mon -11 -10:46
+          9 years...           
+-------------------------------
+ 9 years 1 mon -11 days -10:46
 (1 row)
 
 CREATE TABLE INTERVAL_TBL (f1 interval);
@@ -63,41 +63,41 @@ INSERT INTO INTERVAL_TBL (f1) VALUES ('@ 30 eons ago');
 ERROR:  Bad interval external representation '@ 30 eons ago'
 -- test interval operators
 SELECT '' AS ten, INTERVAL_TBL.*;
- ten |       f1        
------+-----------------
-     | +00:01
-     | +05:00
-     | 10 +00:00
-     | 34 years +00:00
-     | 3 mons +00:00
+ ten |       f1       
+-----+----------------
+     | 00:01
+     | 05:00
+     | 10 days
+     | 34 years
+     | 3 mons
      | -00:00:14
-     | 1 +02:03:04
-     | 6 years +00:00
-     | 5 mons +00:00
-     | 5 mons +12:00
+     | 1 day 02:03:04
+     | 6 years
+     | 5 mons
+     | 5 mons 12:00
 (10 rows)
 
 SELECT '' AS nine, INTERVAL_TBL.*
    WHERE INTERVAL_TBL.f1 <> interval '@ 10 days';
- nine |       f1        
-------+-----------------
-      | +00:01
-      | +05:00
-      | 34 years +00:00
-      | 3 mons +00:00
+ nine |       f1       
+------+----------------
+      | 00:01
+      | 05:00
+      | 34 years
+      | 3 mons
       | -00:00:14
-      | 1 +02:03:04
-      | 6 years +00:00
-      | 5 mons +00:00
-      | 5 mons +12:00
+      | 1 day 02:03:04
+      | 6 years
+      | 5 mons
+      | 5 mons 12:00
 (9 rows)
 
 SELECT '' AS three, INTERVAL_TBL.*
    WHERE INTERVAL_TBL.f1 <= interval '@ 5 hours';
  three |    f1     
 -------+-----------
-       | +00:01
-       | +05:00
+       | 00:01
+       | 05:00
        | -00:00:14
 (3 rows)
 
@@ -105,95 +105,95 @@ SELECT '' AS three, INTERVAL_TBL.*
    WHERE INTERVAL_TBL.f1 < interval '@ 1 day';
  three |    f1     
 -------+-----------
-       | +00:01
-       | +05:00
+       | 00:01
+       | 05:00
        | -00:00:14
 (3 rows)
 
 SELECT '' AS one, INTERVAL_TBL.*
    WHERE INTERVAL_TBL.f1 = interval '@ 34 years';
- one |       f1        
------+-----------------
-     | 34 years +00:00
+ one |    f1    
+-----+----------
+     | 34 years
 (1 row)
 
 SELECT '' AS five, INTERVAL_TBL.* 
    WHERE INTERVAL_TBL.f1 >= interval '@ 1 month';
- five |       f1        
-------+-----------------
-      | 34 years +00:00
-      | 3 mons +00:00
-      | 6 years +00:00
-      | 5 mons +00:00
-      | 5 mons +12:00
+ five |      f1      
+------+--------------
+      | 34 years
+      | 3 mons
+      | 6 years
+      | 5 mons
+      | 5 mons 12:00
 (5 rows)
 
 SELECT '' AS nine, INTERVAL_TBL.*
    WHERE INTERVAL_TBL.f1 > interval '@ 3 seconds ago';
- nine |       f1        
-------+-----------------
-      | +00:01
-      | +05:00
-      | 10 +00:00
-      | 34 years +00:00
-      | 3 mons +00:00
-      | 1 +02:03:04
-      | 6 years +00:00
-      | 5 mons +00:00
-      | 5 mons +12:00
+ nine |       f1       
+------+----------------
+      | 00:01
+      | 05:00
+      | 10 days
+      | 34 years
+      | 3 mons
+      | 1 day 02:03:04
+      | 6 years
+      | 5 mons
+      | 5 mons 12:00
 (9 rows)
 
 SELECT '' AS fortyfive, r1.*, r2.*
    FROM INTERVAL_TBL r1, INTERVAL_TBL r2
    WHERE r1.f1 > r2.f1
    ORDER BY r1.f1, r2.f1;
- fortyfive |       f1        |       f1       
------------+-----------------+----------------
-           | +00:01          | -00:00:14
-           | +05:00          | -00:00:14
-           | +05:00          | +00:01
-           | 1 +02:03:04     | -00:00:14
-           | 1 +02:03:04     | +00:01
-           | 1 +02:03:04     | +05:00
-           | 10 +00:00       | -00:00:14
-           | 10 +00:00       | +00:01
-           | 10 +00:00       | +05:00
-           | 10 +00:00       | 1 +02:03:04
-           | 3 mons +00:00   | -00:00:14
-           | 3 mons +00:00   | +00:01
-           | 3 mons +00:00   | +05:00
-           | 3 mons +00:00   | 1 +02:03:04
-           | 3 mons +00:00   | 10 +00:00
-           | 5 mons +00:00   | -00:00:14
-           | 5 mons +00:00   | +00:01
-           | 5 mons +00:00   | +05:00
-           | 5 mons +00:00   | 1 +02:03:04
-           | 5 mons +00:00   | 10 +00:00
-           | 5 mons +00:00   | 3 mons +00:00
-           | 5 mons +12:00   | -00:00:14
-           | 5 mons +12:00   | +00:01
-           | 5 mons +12:00   | +05:00
-           | 5 mons +12:00   | 1 +02:03:04
-           | 5 mons +12:00   | 10 +00:00
-           | 5 mons +12:00   | 3 mons +00:00
-           | 5 mons +12:00   | 5 mons +00:00
-           | 6 years +00:00  | -00:00:14
-           | 6 years +00:00  | +00:01
-           | 6 years +00:00  | +05:00
-           | 6 years +00:00  | 1 +02:03:04
-           | 6 years +00:00  | 10 +00:00
-           | 6 years +00:00  | 3 mons +00:00
-           | 6 years +00:00  | 5 mons +00:00
-           | 6 years +00:00  | 5 mons +12:00
-           | 34 years +00:00 | -00:00:14
-           | 34 years +00:00 | +00:01
-           | 34 years +00:00 | +05:00
-           | 34 years +00:00 | 1 +02:03:04
-           | 34 years +00:00 | 10 +00:00
-           | 34 years +00:00 | 3 mons +00:00
-           | 34 years +00:00 | 5 mons +00:00
-           | 34 years +00:00 | 5 mons +12:00
-           | 34 years +00:00 | 6 years +00:00
+ fortyfive |       f1       |       f1       
+-----------+----------------+----------------
+           | 00:01          | -00:00:14
+           | 05:00          | -00:00:14
+           | 05:00          | 00:01
+           | 1 day 02:03:04 | -00:00:14
+           | 1 day 02:03:04 | 00:01
+           | 1 day 02:03:04 | 05:00
+           | 10 days        | -00:00:14
+           | 10 days        | 00:01
+           | 10 days        | 05:00
+           | 10 days        | 1 day 02:03:04
+           | 3 mons         | -00:00:14
+           | 3 mons         | 00:01
+           | 3 mons         | 05:00
+           | 3 mons         | 1 day 02:03:04
+           | 3 mons         | 10 days
+           | 5 mons         | -00:00:14
+           | 5 mons         | 00:01
+           | 5 mons         | 05:00
+           | 5 mons         | 1 day 02:03:04
+           | 5 mons         | 10 days
+           | 5 mons         | 3 mons
+           | 5 mons 12:00   | -00:00:14
+           | 5 mons 12:00   | 00:01
+           | 5 mons 12:00   | 05:00
+           | 5 mons 12:00   | 1 day 02:03:04
+           | 5 mons 12:00   | 10 days
+           | 5 mons 12:00   | 3 mons
+           | 5 mons 12:00   | 5 mons
+           | 6 years        | -00:00:14
+           | 6 years        | 00:01
+           | 6 years        | 05:00
+           | 6 years        | 1 day 02:03:04
+           | 6 years        | 10 days
+           | 6 years        | 3 mons
+           | 6 years        | 5 mons
+           | 6 years        | 5 mons 12:00
+           | 34 years       | -00:00:14
+           | 34 years       | 00:01
+           | 34 years       | 05:00
+           | 34 years       | 1 day 02:03:04
+           | 34 years       | 10 days
+           | 34 years       | 3 mons
+           | 34 years       | 5 mons
+           | 34 years       | 5 mons 12:00
+           | 34 years       | 6 years
 (45 rows)
 
 SET DATESTYLE = 'postgres';