Display only 9 subsecond digits instead of 10 for time values, for

consistency and to prevent rounding for days < 30.  Also round off all
trailing zeros, rather than leaving an even number of digits.

src/backend/utils/adt/datetime.c

@@ -8,7 +8,7 @@
  *
  *
  * IDENTIFICATION
- *	  $PostgreSQL: pgsql/src/backend/utils/adt/datetime.c,v 1.149 2005/05/27 15:16:44 momjian Exp $
+ *	  $PostgreSQL: pgsql/src/backend/utils/adt/datetime.c,v 1.150 2005/05/27 21:31:23 momjian Exp $
  *
  *-------------------------------------------------------------------------
  */
@@ -3461,12 +3461,9 @@ EncodeTimeOnly(struct pg_tm * tm, fsec_t fsec, int *tzp, int style, char *str)
 #ifdef HAVE_INT64_TIMESTAMP
 		sprintf(str + strlen(str), ":%02d.%06d", tm->tm_sec, fsec);
 #else
-		sprintf(str + strlen(str), ":%013.10f", tm->tm_sec + fsec);
+		sprintf(str + strlen(str), ":%012.9f", tm->tm_sec + fsec);
 #endif
-		/* chop off trailing pairs of zeros... */
-		while (strcmp((str + strlen(str) - 2), "00") == 0 &&
-			*(str + strlen(str) - 3) != '.')
-			*(str + strlen(str) - 2) = '\0';
+		TrimTrailingZeros(str);
 	}
 	else
 		sprintf(str + strlen(str), ":%02d", tm->tm_sec);
@@ -3804,7 +3801,7 @@ EncodeInterval(struct pg_tm * tm, fsec_t fsec, int style, char *str)
 					sprintf(cp, ".%06d", Abs(fsec));
 #else
 					fsec += tm->tm_sec;
-					sprintf(cp, ":%013.10f", fabs(fsec));
+					sprintf(cp, ":%012.9f", fabs(fsec));
 #endif
 					TrimTrailingZeros(cp);
 					cp += strlen(cp);

src/interfaces/ecpg/pgtypeslib/interval.c

@@ -511,7 +511,7 @@ EncodeInterval(struct tm * tm, fsec_t fsec, int style, char *str)
 					sprintf(cp, ".%06d", Abs(fsec));
 #else
 					fsec += tm->tm_sec;
-					sprintf(cp, ":%013.10f", fabs(fsec));
+ 					sprintf(cp, ":%012.9f", fabs(fsec));
 #endif
 					TrimTrailingZeros(cp);
 					cp += strlen(cp);

src/test/regress/expected/horology.out

@@ -205,62 +205,62 @@ SET DateStyle = 'ISO';
 -- As of 7.4, allow time without time zone having a time zone specified
 SELECT time without time zone '040506.789+08';
      time      
----------------
- 04:05:06.7890
+--------------
+ 04:05:06.789
 (1 row)
 
 SELECT time without time zone '040506.789-08';
      time      
----------------
- 04:05:06.7890
+--------------
+ 04:05:06.789
 (1 row)
 
 SELECT time without time zone 'T040506.789+08';
      time      
----------------
- 04:05:06.7890
+--------------
+ 04:05:06.789
 (1 row)
 
 SELECT time without time zone 'T040506.789-08';
      time      
----------------
- 04:05:06.7890
+--------------
+ 04:05:06.789
 (1 row)
 
 SELECT time with time zone '040506.789+08';
       timetz      
-------------------
- 04:05:06.7890+08
+-----------------
+ 04:05:06.789+08
 (1 row)
 
 SELECT time with time zone '040506.789-08';
       timetz      
-------------------
- 04:05:06.7890-08
+-----------------
+ 04:05:06.789-08
 (1 row)
 
 SELECT time with time zone 'T040506.789+08';
       timetz      
-------------------
- 04:05:06.7890+08
+-----------------
+ 04:05:06.789+08
 (1 row)
 
 SELECT time with time zone 'T040506.789-08';
       timetz      
-------------------
- 04:05:06.7890-08
+-----------------
+ 04:05:06.789-08
 (1 row)
 
 SELECT time with time zone 'T040506.789 +08';
       timetz      
-------------------
- 04:05:06.7890+08
+-----------------
+ 04:05:06.789+08
 (1 row)
 
 SELECT time with time zone 'T040506.789 -08';
       timetz      
-------------------
- 04:05:06.7890-08
+-----------------
+ 04:05:06.789-08
 (1 row)
 
 SET DateStyle = 'Postgres, MDY';