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Cause the format of BC timestamptz output to be 'datetime zone BC' rather

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than 'datetime BC zone', because the former is accepted by the timestamptz
input converter while the latter may not be depending on spacing.  This
is not a loss of compatibility w.r.t. 7.4 and before, because until very
recently there was never a case where we'd output both zone and 'BC'.
REL8_0_STABLE
Tom Lane 21 years ago
parent 59429adea9
commit c8c40bbc9e
3 changed files with 32 additions and 23 deletions
Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL
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  1. 43
      src/backend/utils/adt/datetime.c
  2. 4
      src/test/regress/expected/horology.out
  3. 8
      src/test/regress/expected/timestamptz.out

43
src/backend/utils/adt/datetime.c
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@ -8,7 +8,7 @@
*
*
* IDENTIFICATION
* $PostgreSQL: pgsql/src/backend/utils/adt/datetime.c,v 1.130 2004/06/03 02:08:04 tgl Exp $
* $PostgreSQL: pgsql/src/backend/utils/adt/datetime.c,v 1.131 2004/07/11 04:57:04 tgl Exp $
*
*-------------------------------------------------------------------------
*/
@ -3521,19 +3521,18 @@ EncodeDateTime(struct pg_tm * tm, fsec_t fsec, int *tzp, char **tzn, int style,
if (fsec != 0)
{
sprintf((str + strlen(str)), ":%02d.%06d", tm->tm_sec, fsec);
TrimTrailingZeros(str);
}
#else
if ((fsec != 0) && (tm->tm_year > 0))
{
sprintf((str + strlen(str)), ":%09.6f", tm->tm_sec + fsec);
#endif
TrimTrailingZeros(str);
}
#endif
else
sprintf((str + strlen(str)), ":%02d", tm->tm_sec);
if (tm->tm_year <= 0)
sprintf((str + strlen(str)), " BC");
/*
* tzp == NULL indicates that we don't want *any* time zone
* info in the output string. *tzn != NULL indicates that we
@ -3546,6 +3545,9 @@ EncodeDateTime(struct pg_tm * tm, fsec_t fsec, int *tzp, char **tzn, int style,
min = ((abs(*tzp) / 60) % 60);
sprintf((str + strlen(str)), ((min != 0) ? "%+03d:%02d" : "%+03d"), hour, min);
}
if (tm->tm_year <= 0)
sprintf((str + strlen(str)), " BC");
break;
case USE_SQL_DATES:
@ -3571,19 +3573,18 @@ EncodeDateTime(struct pg_tm * tm, fsec_t fsec, int *tzp, char **tzn, int style,
if (fsec != 0)
{
sprintf((str + strlen(str)), ":%02d.%06d", tm->tm_sec, fsec);
TrimTrailingZeros(str);
}
#else
if ((fsec != 0) && (tm->tm_year > 0))
{
sprintf((str + strlen(str)), ":%09.6f", tm->tm_sec + fsec);
#endif
TrimTrailingZeros(str);
}
#endif
else
sprintf((str + strlen(str)), ":%02d", tm->tm_sec);
if (tm->tm_year <= 0)
sprintf((str + strlen(str)), " BC");
if ((tzp != NULL) && (tm->tm_isdst >= 0))
{
if (*tzn != NULL)
@ -3595,6 +3596,9 @@ EncodeDateTime(struct pg_tm * tm, fsec_t fsec, int *tzp, char **tzn, int style,
sprintf((str + strlen(str)), ((min != 0) ? "%+03d:%02d" : "%+03d"), hour, min);
}
}
if (tm->tm_year <= 0)
sprintf((str + strlen(str)), " BC");
break;
case USE_GERMAN_DATES:
@ -3617,19 +3621,18 @@ EncodeDateTime(struct pg_tm * tm, fsec_t fsec, int *tzp, char **tzn, int style,
if (fsec != 0)
{
sprintf((str + strlen(str)), ":%02d.%06d", tm->tm_sec, fsec);
TrimTrailingZeros(str);
}
#else
if ((fsec != 0) && (tm->tm_year > 0))
{
sprintf((str + strlen(str)), ":%09.6f", tm->tm_sec + fsec);
#endif
TrimTrailingZeros(str);
}
#endif
else
sprintf((str + strlen(str)), ":%02d", tm->tm_sec);
if (tm->tm_year <= 0)
sprintf((str + strlen(str)), " BC");
if ((tzp != NULL) && (tm->tm_isdst >= 0))
{
if (*tzn != NULL)
@ -3641,6 +3644,9 @@ EncodeDateTime(struct pg_tm * tm, fsec_t fsec, int *tzp, char **tzn, int style,
sprintf((str + strlen(str)), ((min != 0) ? "%+03d:%02d" : "%+03d"), hour, min);
}
}
if (tm->tm_year <= 0)
sprintf((str + strlen(str)), " BC");
break;
case USE_POSTGRES_DATES:
@ -3671,20 +3677,20 @@ EncodeDateTime(struct pg_tm * tm, fsec_t fsec, int *tzp, char **tzn, int style,
if (fsec != 0)
{
sprintf((str + strlen(str)), ":%02d.%06d", tm->tm_sec, fsec);
TrimTrailingZeros(str);
}
#else
if ((fsec != 0) && (tm->tm_year > 0))
{
sprintf((str + strlen(str)), ":%09.6f", tm->tm_sec + fsec);
#endif
TrimTrailingZeros(str);
}
#endif
else
sprintf((str + strlen(str)), ":%02d", tm->tm_sec);
sprintf((str + strlen(str)), " %04d",
((tm->tm_year > 0) ? tm->tm_year : -(tm->tm_year - 1)));
if (tm->tm_year <= 0)
sprintf((str + strlen(str)), " BC");
if ((tzp != NULL) && (tm->tm_isdst >= 0))
{
@ -3704,11 +3710,14 @@ EncodeDateTime(struct pg_tm * tm, fsec_t fsec, int *tzp, char **tzn, int style,
sprintf((str + strlen(str)), ((min != 0) ? " %+03d:%02d" : " %+03d"), hour, min);
}
}
if (tm->tm_year <= 0)
sprintf((str + strlen(str)), " BC");
break;
}
return TRUE;
} /* EncodeDateTime() */
}
/* EncodeInterval()

4
src/test/regress/expected/horology.out
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@ -672,7 +672,7 @@ SELECT '' AS "64", d1 + interval '1 year' AS one_year FROM TIMESTAMPTZ_TBL;
| Sat Feb 14 17:32:01 1998 PST
| Sun Feb 15 17:32:01 1998 PST
| Mon Feb 16 17:32:01 1998 PST
| Thu Feb 16 17:32:01 0096 BC PST
| Thu Feb 16 17:32:01 0096 PST BC
| Sun Feb 16 17:32:01 0098 PST
| Fri Feb 16 17:32:01 0598 PST
| Wed Feb 16 17:32:01 1098 PST
@ -741,7 +741,7 @@ SELECT '' AS "64", d1 - interval '1 year' AS one_year FROM TIMESTAMPTZ_TBL;
| Wed Feb 14 17:32:01 1996 PST
| Thu Feb 15 17:32:01 1996 PST
| Fri Feb 16 17:32:01 1996 PST
| Mon Feb 16 17:32:01 0098 BC PST
| Mon Feb 16 17:32:01 0098 PST BC
| Thu Feb 16 17:32:01 0096 PST
| Tue Feb 16 17:32:01 0596 PST
| Sun Feb 16 17:32:01 1096 PST

8
src/test/regress/expected/timestamptz.out
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@ -180,7 +180,7 @@ SELECT '' AS "64", d1 FROM TIMESTAMPTZ_TBL;
| Fri Feb 14 17:32:01 1997 PST
| Sat Feb 15 17:32:01 1997 PST
| Sun Feb 16 17:32:01 1997 PST
| Tue Feb 16 17:32:01 0097 BC PST
| Tue Feb 16 17:32:01 0097 PST BC
| Sat Feb 16 17:32:01 0097 PST
| Thu Feb 16 17:32:01 0597 PST
| Tue Feb 16 17:32:01 1097 PST
@ -266,7 +266,7 @@ SELECT '' AS "15", d1 FROM TIMESTAMPTZ_TBL
----+---------------------------------
| -infinity
| Wed Dec 31 16:00:00 1969 PST
| Tue Feb 16 17:32:01 0097 BC PST
| Tue Feb 16 17:32:01 0097 PST BC
| Sat Feb 16 17:32:01 0097 PST
| Thu Feb 16 17:32:01 0597 PST
| Tue Feb 16 17:32:01 1097 PST
@ -332,7 +332,7 @@ SELECT '' AS "63", d1 FROM TIMESTAMPTZ_TBL
| Fri Feb 14 17:32:01 1997 PST
| Sat Feb 15 17:32:01 1997 PST
| Sun Feb 16 17:32:01 1997 PST
| Tue Feb 16 17:32:01 0097 BC PST
| Tue Feb 16 17:32:01 0097 PST BC
| Sat Feb 16 17:32:01 0097 PST
| Thu Feb 16 17:32:01 0597 PST
| Tue Feb 16 17:32:01 1097 PST
@ -364,7 +364,7 @@ SELECT '' AS "16", d1 FROM TIMESTAMPTZ_TBL
| -infinity
| Wed Dec 31 16:00:00 1969 PST
| Thu Jan 02 00:00:00 1997 PST
| Tue Feb 16 17:32:01 0097 BC PST
| Tue Feb 16 17:32:01 0097 PST BC
| Sat Feb 16 17:32:01 0097 PST
| Thu Feb 16 17:32:01 0597 PST
| Tue Feb 16 17:32:01 1097 PST

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