Please apply the following patch to fix AIX and IRIX timestamp behavior

as previously discussed.

It makes AIX and IRIX not use DST for dates before 1970.

The following expected files need to be removed from the regression tests,
they contain wrong results and are not needed any more.

src/test/regress/expected/horology-1947-PDT.out
src/test/regress/expected/tinterval-1947-PDT.out
src/test/regress/expected/abstime-1947-PDT.out

Zeugswetter Andreas

src/backend/utils/adt/nabstime.c

@@ -9,7 +9,7 @@
  *
  *
  * IDENTIFICATION
- *	  $Header: /cvsroot/pgsql/src/backend/utils/adt/nabstime.c,v 1.80 2001/01/24 19:43:14 momjian Exp $
+ *	  $Header: /cvsroot/pgsql/src/backend/utils/adt/nabstime.c,v 1.81 2001/02/13 14:32:52 momjian Exp $
  *
  * NOTES
  *
@@ -205,7 +205,17 @@ abstime2tm(AbsoluteTime _time, int *tzp, struct tm * tm, char *tzn)
 
 #if defined(HAVE_TM_ZONE) || defined(HAVE_INT_TIMEZONE)
 	if (tzp != NULL)
+	{
 		tx = localtime((time_t *) &time);
+# ifdef NO_MKTIME_BEFORE_1970
+		if (tx->tm_year < 70 && tx->tm_isdst == 1)
+		{
+			time -= 3600;
+			tx = localtime((time_t *) &time);
+			tx->tm_isdst = 0;
+		}
+# endif
+	}
 	else
 	{
 		tx = gmtime((time_t *) &time);

src/backend/utils/adt/timestamp.c

@@ -8,7 +8,7 @@
  *
  *
  * IDENTIFICATION
- *	  $Header: /cvsroot/pgsql/src/backend/utils/adt/timestamp.c,v 1.44 2001/01/24 19:43:14 momjian Exp $
+ *	  $Header: /cvsroot/pgsql/src/backend/utils/adt/timestamp.c,v 1.45 2001/02/13 14:32:52 momjian Exp $
  *
  *-------------------------------------------------------------------------
  */
@@ -315,6 +315,14 @@ timestamp2tm(Timestamp dt, int *tzp, struct tm * tm, double *fsec, char **tzn)
 
 #if defined(HAVE_TM_ZONE) || defined(HAVE_INT_TIMEZONE)
 			tx = localtime(&utime);
+# ifdef NO_MKTIME_BEFORE_1970
+			if (tx->tm_year < 70 && tx->tm_isdst == 1)
+			{
+				utime -= 3600;
+				tx = localtime(&utime);
+				tx->tm_isdst = 0;
+			}
+# endif
 			tm->tm_year = tx->tm_year + 1900;
 			tm->tm_mon = tx->tm_mon + 1;
 			tm->tm_mday = tx->tm_mday;

src/include/port/aix.h

 #define CLASS_CONFLICT
 #define DISABLE_XOPEN_NLS
 #define HAS_TEST_AND_SET
+#define NO_MKTIME_BEFORE_1970
 typedef unsigned int slock_t;
 
 #include <sys/machine.h>		/* ENDIAN definitions for network

src/include/port/irix5.h

 #define HAS_TEST_AND_SET
+#define NO_MKTIME_BEFORE_1970
 typedef unsigned long slock_t;

src/test/regress/resultmap

-abstime/.*-aix4=abstime-1947-PDT
-abstime/.*-irix6=abstime-1947-PDT
 abstime/alpha.*-dec-osf=abstime-solaris-1947
 abstime/i.86-pc-solaris=abstime-solaris-1947
 abstime/sparc-sun-solaris=abstime-solaris-1947
@@ -31,8 +29,8 @@ geometry/sparc-sun-solaris=geometry-solaris-precision
 geometry/sparc.*-linux-gnu=geometry-solaris-precision
 geometry/alpha.*-linux-gnu=geometry-solaris-precision
 geometry/.*-beos=geometry-intel-beos
-horology/.*-aix4=horology-1947-PDT
-horology/.*-irix6=horology-1947-PDT
+horology/.*-aix4=horology-no-DST-before-1970
+horology/.*-irix6=horology-no-DST-before-1970
 horology/alpha.*-dec-osf=horology-solaris-1947
 horology/.*-cygwin=horology-no-DST-before-1970
 horology/hppa=horology-no-DST-before-1970
@@ -74,8 +72,6 @@ int4/sparc-sun-solaris=int4-too-large
 int4/.*-sysv5uw=int4-too-large
 int4/.*-beos=int4-range-error
 int8/.*-qnx=int8-exp-three-digits
-tinterval/.*-aix4=tinterval-1947-PDT
-tinterval/.*-irix6=tinterval-1947-PDT
 tinterval/alpha.*-dec-osf=tinterval-solaris-1947
 tinterval/i.86-pc-solaris=tinterval-solaris-1947
 tinterval/sparc-sun-solaris=tinterval-solaris-1947