*
*
* IDENTIFICATION
- * $Header: /cvsroot/pgsql/src/backend/utils/adt/datetime.c,v 1.16 1997/09/08 21:48:22 momjian Exp $
+ * $Header: /cvsroot/pgsql/src/backend/utils/adt/datetime.c,v 1.17 1997/10/25 05:16:09 thomas Exp $
*
*-------------------------------------------------------------------------
*/
date = (date2j(tm->tm_year, tm->tm_mon, tm->tm_mday) - date2j(2000, 1, 1));
return (date);
-} /* date_in() */
+} /* date_in() */
/* date_out()
* Given internal format date, convert to text string.
*/
-char *
+char *
date_out(DateADT date)
{
char *result;
*tm = &tt;
char buf[MAXDATELEN + 1];
-#if FALSE
- int year,
- month,
- day;
-
-#endif
-
j2date((date + date2j(2000, 1, 1)),
&(tm->tm_year), &(tm->tm_mon), &(tm->tm_mday));
EncodeDateOnly(tm, DateStyle, buf);
-#if FALSE
- if (EuroDates == 1) /* Output European-format dates */
- sprintf(buf, "%02d-%02d-%04d", day, month, year);
- else
- sprintf(buf, "%02d-%02d-%04d", month, day, year);
-#endif
-
result = PALLOC(strlen(buf) + 1);
strcpy(result, buf);
return (result);
-} /* date_out() */
+} /* date_out() */
bool
date_eq(DateADT dateVal1, DateADT dateVal2)
date_lt(DateADT dateVal1, DateADT dateVal2)
{
return (dateVal1 < dateVal2);
-} /* date_lt() */
+} /* date_lt() */
bool
date_le(DateADT dateVal1, DateADT dateVal2)
{
return (dateVal1 <= dateVal2);
-} /* date_le() */
+} /* date_le() */
bool
date_gt(DateADT dateVal1, DateADT dateVal2)
{
return (dateVal1 > dateVal2);
-} /* date_gt() */
+} /* date_gt() */
bool
date_ge(DateADT dateVal1, DateADT dateVal2)
{
return (dateVal1 >= dateVal2);
-} /* date_ge() */
+} /* date_ge() */
int
date_cmp(DateADT dateVal1, DateADT dateVal2)
return 1;
}
return 0;
-} /* date_cmp() */
+} /* date_cmp() */
DateADT
date_larger(DateADT dateVal1, DateADT dateVal2)
{
return (date_gt(dateVal1, dateVal2) ? dateVal1 : dateVal2);
-} /* date_larger() */
+} /* date_larger() */
DateADT
date_smaller(DateADT dateVal1, DateADT dateVal2)
{
return (date_lt(dateVal1, dateVal2) ? dateVal1 : dateVal2);
-} /* date_smaller() */
+} /* date_smaller() */
-/* Compute difference between two dates in days. */
+/* Compute difference between two dates in days.
+ */
int4
date_mi(DateADT dateVal1, DateADT dateVal2)
{
return (dateVal1 - dateVal2);
-} /* date_mi() */
+} /* date_mi() */
/* Add a number of days to a date, giving a new date.
- Must handle both positive and negative numbers of days. */
+ * Must handle both positive and negative numbers of days.
+ */
DateADT
date_pli(DateADT dateVal, int4 days)
{
return (dateVal + days);
-} /* date_pli() */
+} /* date_pli() */
-/* Subtract a number of days from a date, giving a new date. */
+/* Subtract a number of days from a date, giving a new date.
+ */
DateADT
date_mii(DateADT dateVal, int4 days)
{
return (date_pli(dateVal, -days));
-} /* date_mii() */
+} /* date_mii() */
/* date_datetime()
* Convert date to datetime data type.
*/
-DateTime *
+DateTime *
date_datetime(DateADT dateVal)
{
DateTime *result;
elog(WARN, "Datetime out of range", NULL);
return (result);
-} /* date_datetime() */
+} /* date_datetime() */
/* datetime_date()
result = (date2j(tm->tm_year, tm->tm_mon, tm->tm_mday) - date2j(2000, 1, 1));
return (result);
-} /* datetime_date() */
+} /* datetime_date() */
/* abstime_date()
}
return (result);
-} /* abstime_date() */
+} /* abstime_date() */
/* date2tm()
tm->tm_year = tx->tm_year + 1900;
tm->tm_mon = tx->tm_mon + 1;
tm->tm_mday = tx->tm_mday;
-#if FALSE
- tm->tm_hour = tx->tm_hour;
- tm->tm_min = tx->tm_min;
- tm->tm_sec = tx->tm_sec;
-#endif
tm->tm_isdst = tx->tm_isdst;
#ifdef HAVE_INT_TIMEZONE
}
else
{
-#if FALSE
- j2date((dateVal + date2j(2000, 1, 1)), &(tm->tm_year), &(tm->tm_mon), &(tm->tm_mday));
- tm->tm_hour = 0;
- tm->tm_min = 0;
- tm->tm_sec = 0;
-#endif
-
#ifdef DATEDEBUG
printf("date2tm- convert %d-%d-%d %d:%d%d to datetime\n",
tm->tm_year, tm->tm_mon, tm->tm_mday, tm->tm_hour, tm->tm_min, tm->tm_sec);
}
return 0;
-} /* date2tm() */
+} /* date2tm() */
/*****************************************************************************
*****************************************************************************/
-TimeADT *
+TimeADT *
time_in(char *str)
{
TimeADT *time;
*time = ((((tm->tm_hour * 60) + tm->tm_min) * 60) + tm->tm_sec + fsec);
return (time);
-} /* time_in() */
+} /* time_in() */
-char *
+char *
time_out(TimeADT *time)
{
char *result;
struct tm tt,
*tm = &tt;
-#if FALSE
- int hour,
- min,
- sec;
-
-#endif
double fsec;
char buf[MAXDATELEN + 1];
EncodeTimeOnly(tm, fsec, DateStyle, buf);
-#if FALSE
- if (sec == 0.0)
- {
- sprintf(buf, "%02d:%02d", hour, min);
-
- }
- else
- {
- if (fsec == 0)
- {
- sprintf(buf, "%02d:%02d:%02d", hour, min, sec);
- }
- else
- {
- sprintf(buf, "%02d:%02d:%05.2f", hour, min, (sec + fsec));
- }
- }
-#endif
-
result = PALLOC(strlen(buf) + 1);
strcpy(result, buf);
return (result);
-} /* time_out() */
+} /* time_out() */
bool
return (FALSE);
return (*time1 == *time2);
-} /* time_eq() */
+} /* time_eq() */
bool
time_ne(TimeADT *time1, TimeADT *time2)
return (FALSE);
return (*time1 != *time2);
-} /* time_eq() */
+} /* time_eq() */
bool
time_lt(TimeADT *time1, TimeADT *time2)
return (FALSE);
return (*time1 < *time2);
-} /* time_eq() */
+} /* time_eq() */
bool
time_le(TimeADT *time1, TimeADT *time2)
return (FALSE);
return (*time1 <= *time2);
-} /* time_eq() */
+} /* time_eq() */
bool
time_gt(TimeADT *time1, TimeADT *time2)
return (FALSE);
return (*time1 > *time2);
-} /* time_eq() */
+} /* time_eq() */
bool
time_ge(TimeADT *time1, TimeADT *time2)
return (FALSE);
return (*time1 >= *time2);
-} /* time_eq() */
+} /* time_eq() */
int
time_cmp(TimeADT *time1, TimeADT *time2)
{
return ((*time1 < *time2) ? -1 : (((*time1 > *time2) ? 1 : 0)));
-} /* time_cmp() */
+} /* time_cmp() */
-/* datetime_datetime()
+/* datetime_time()
+ * Convert datetime to time data type.
+ */
+TimeADT *
+datetime_time(DateTime *datetime)
+{
+ TimeADT *result;
+ struct tm tt,
+ *tm = &tt;
+ int tz;
+ double fsec;
+ char *tzn;
+
+ if (!PointerIsValid(datetime))
+ elog(WARN, "Unable to convert null datetime to date", NULL);
+
+ if (DATETIME_NOT_FINITE(*datetime))
+ elog(WARN, "Unable to convert datetime to date", NULL);
+
+ if (DATETIME_IS_EPOCH(*datetime))
+ {
+ datetime2tm(SetDateTime(*datetime), NULL, tm, &fsec, NULL);
+
+ }
+ else if (DATETIME_IS_CURRENT(*datetime))
+ {
+ datetime2tm(SetDateTime(*datetime), &tz, tm, &fsec, &tzn);
+
+ }
+ else
+ {
+ if (datetime2tm(*datetime, &tz, tm, &fsec, &tzn) != 0)
+ elog(WARN, "Unable to convert datetime to date", NULL);
+ }
+
+ result = PALLOCTYPE(TimeADT);
+
+ *result = ((((tm->tm_hour * 60) + tm->tm_min) * 60) + tm->tm_sec + fsec);
+
+ return (result);
+} /* datetime_time() */
+
+
+/* datet_datetime()
* Convert date and time to datetime data type.
+ * Should be called datetime_datetime()
+ * but need <= 16 characters for function names.
*/
-DateTime *
-datetime_datetime(DateADT date, TimeADT *time)
+DateTime *
+datet_datetime(DateADT date, TimeADT *time)
{
DateTime *result;
{
result = PALLOCTYPE(DateTime);
DATETIME_INVALID(*result);
-
- }
- else
- {
+ } else {
result = date_datetime(date);
*result += *time;
}
return (result);
-} /* datetime_datetime() */
+} /* datet_datetime() */
int32 /* RelativeTime */
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