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timestamptz_izone should return the input, not NULL, when the input

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is a non-finite timestamp, for consistency with related functions.
In other words: +infinity rotated to a different timezone is still
+infinity.
This commit is contained in:
Tom Lane 2005-09-09 06:46:14 +00:00
parent a239af02c3
commit f2ebd01ef0
1 changed files with 4 additions and 8 deletions
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8
src/backend/utils/adt/timestamp.c
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@ -8,7 +8,7 @@
*
*
* IDENTIFICATION
* $PostgreSQL: pgsql/src/backend/utils/adt/timestamp.c,v 1.152 2005/09/09 02:31:49 tgl Exp $
* $PostgreSQL: pgsql/src/backend/utils/adt/timestamp.c,v 1.153 2005/09/09 06:46:14 tgl Exp $
*
*-------------------------------------------------------------------------
*/
@ -1897,14 +1897,10 @@ timestamp_mi(PG_FUNCTION_ARGS)
result = (Interval *) palloc(sizeof(Interval));
if (TIMESTAMP_NOT_FINITE(dt1) || TIMESTAMP_NOT_FINITE(dt2))
{
ereport(ERROR,
(errcode(ERRCODE_DATETIME_VALUE_OUT_OF_RANGE),
errmsg("cannot subtract infinite timestamps")));
result->time = 0;
}
else
#ifdef HAVE_INT64_TIMESTAMP
result->time = dt1 - dt2;
#else
@ -4196,7 +4192,7 @@ timestamptz_izone(PG_FUNCTION_ARGS)
int tz;
if (TIMESTAMP_NOT_FINITE(timestamp))
PG_RETURN_NULL();
PG_RETURN_TIMESTAMP(timestamp);
if (zone->month != 0)
ereport(ERROR,