*** src/backend/utils/adt/date.c.orig	Thu Feb 13 12:04:24 2003
--- src/backend/utils/adt/date.c	Mon Jun 16 14:56:53 2003
***************
*** 999,1004 ****
--- 999,1009 ----
  
  /* interval_time()
   * Convert interval to time data type.
+  *
+  * This is defined as producing the fractional-day portion of the interval.
+  * Therefore, we can just ignore the months field.  It is not real clear
+  * what to do with negative intervals, but we choose to subtract the floor,
+  * so that, say, '-2 hours' becomes '22:00:00'.
   */
  Datum
  interval_time(PG_FUNCTION_ARGS)
***************
*** 1007,1021 ****
  	TimeADT		result;
  
  #ifdef HAVE_INT64_TIMESTAMP
  	result = span->time;
! 	if ((result >= INT64CONST(86400000000))
! 		|| (result <= INT64CONST(-86400000000)))
! 		result -= (result / INT64CONST(1000000) * INT64CONST(1000000));
  #else
- 	Interval	span1;
- 
  	result = span->time;
! 	TMODULO(result, span1.time, 86400e0);
  #endif
  
  	PG_RETURN_TIMEADT(result);
--- 1012,1034 ----
  	TimeADT		result;
  
  #ifdef HAVE_INT64_TIMESTAMP
+ 	int64		days;
+ 
  	result = span->time;
! 	if (result >= INT64CONST(86400000000))
! 	{
! 		days = result / INT64CONST(86400000000);
! 		result -= days * INT64CONST(86400000000);
! 	}
! 	else if (result < 0)
! 	{
! 		days = (-result + INT64CONST(86400000000-1)) / INT64CONST(86400000000);
! 		result += days * INT64CONST(86400000000);
! 	}
  #else
  	result = span->time;
! 	if (result >= 86400e0 || result < 0)
! 		result -= floor(result / 86400e0) * 86400e0;
  #endif
  
  	PG_RETURN_TIMEADT(result);