* date.c
* implements DATE and TIME data types specified in SQL standard
*
- * Portions Copyright (c) 1996-2016, PostgreSQL Global Development Group
+ * Portions Copyright (c) 1996-2017, PostgreSQL Global Development Group
* Portions Copyright (c) 1994-5, Regents of the University of California
*
*
struct pg_tm tm;
DateADT date;
int dterr;
+ bool bc = false;
tm.tm_year = PG_GETARG_INT32(0);
tm.tm_mon = PG_GETARG_INT32(1);
tm.tm_mday = PG_GETARG_INT32(2);
- /*
- * Note: we'll reject zero or negative year values. Perhaps negatives
- * should be allowed to represent BC years?
- */
- dterr = ValidateDate(DTK_DATE_M, false, false, false, &tm);
+ /* Handle negative years as BC */
+ if (tm.tm_year < 0)
+ {
+ bc = true;
+ tm.tm_year = -tm.tm_year;
+ }
+
+ dterr = ValidateDate(DTK_DATE_M, false, false, bc, &tm);
if (dterr != 0)
ereport(ERROR,
ereport(ERROR,
(errcode(ERRCODE_DATETIME_VALUE_OUT_OF_RANGE),
errmsg("date out of range for timestamp")));
-#ifdef HAVE_INT64_TIMESTAMP
+
/* date is days since 2000, timestamp is microseconds since same... */
result = dateVal * USECS_PER_DAY;
-#else
- /* date is days since 2000, timestamp is seconds since same... */
- result = dateVal * (double) SECS_PER_DAY;
-#endif
}
return result;
tm->tm_sec = 0;
tz = DetermineTimeZoneOffset(tm, session_timezone);
-#ifdef HAVE_INT64_TIMESTAMP
result = dateVal * USECS_PER_DAY + tz * USECS_PER_SEC;
-#else
- result = dateVal * (double) SECS_PER_DAY + tz;
-#endif
/*
* Since it is possible to go beyond allowed timestamptz range because
result = DBL_MAX;
else
{
-#ifdef HAVE_INT64_TIMESTAMP
/* date is days since 2000, timestamp is microseconds since same... */
result = dateVal * (double) USECS_PER_DAY;
-#else
- /* date is days since 2000, timestamp is seconds since same... */
- result = dateVal * (double) SECS_PER_DAY;
-#endif
}
return result;
static int
tm2time(struct pg_tm * tm, fsec_t fsec, TimeADT *result)
{
-#ifdef HAVE_INT64_TIMESTAMP
*result = ((((tm->tm_hour * MINS_PER_HOUR + tm->tm_min) * SECS_PER_MINUTE) + tm->tm_sec)
* USECS_PER_SEC) + fsec;
-#else
- *result = ((tm->tm_hour * MINS_PER_HOUR + tm->tm_min) * SECS_PER_MINUTE) + tm->tm_sec + fsec;
-#endif
return 0;
}
static int
time2tm(TimeADT time, struct pg_tm * tm, fsec_t *fsec)
{
-#ifdef HAVE_INT64_TIMESTAMP
tm->tm_hour = time / USECS_PER_HOUR;
time -= tm->tm_hour * USECS_PER_HOUR;
tm->tm_min = time / USECS_PER_MINUTE;
tm->tm_sec = time / USECS_PER_SEC;
time -= tm->tm_sec * USECS_PER_SEC;
*fsec = time;
-#else
- double trem;
-
-recalc:
- trem = time;
- TMODULO(trem, tm->tm_hour, (double) SECS_PER_HOUR);
- TMODULO(trem, tm->tm_min, (double) SECS_PER_MINUTE);
- TMODULO(trem, tm->tm_sec, 1.0);
- trem = TIMEROUND(trem);
- /* roundoff may need to propagate to higher-order fields */
- if (trem >= 1.0)
- {
- time = ceil(time);
- goto recalc;
- }
- *fsec = trem;
-#endif
-
return 0;
}
/*
* time_recv - converts external binary format to time
- *
- * We make no attempt to provide compatibility between int and float
- * time representations ...
*/
Datum
time_recv(PG_FUNCTION_ARGS)
int32 typmod = PG_GETARG_INT32(2);
TimeADT result;
-#ifdef HAVE_INT64_TIMESTAMP
result = pq_getmsgint64(buf);
if (result < INT64CONST(0) || result > USECS_PER_DAY)
ereport(ERROR,
(errcode(ERRCODE_DATETIME_VALUE_OUT_OF_RANGE),
errmsg("time out of range")));
-#else
- result = pq_getmsgfloat8(buf);
-
- if (result < 0 || result > (double) SECS_PER_DAY)
- ereport(ERROR,
- (errcode(ERRCODE_DATETIME_VALUE_OUT_OF_RANGE),
- errmsg("time out of range")));
-#endif
AdjustTimeForTypmod(&result, typmod);
StringInfoData buf;
pq_begintypsend(&buf);
-#ifdef HAVE_INT64_TIMESTAMP
pq_sendint64(&buf, time);
-#else
- pq_sendfloat8(&buf, time);
-#endif
PG_RETURN_BYTEA_P(pq_endtypsend(&buf));
}
tm_hour, tm_min, sec)));
/* This should match tm2time */
-#ifdef HAVE_INT64_TIMESTAMP
time = (((tm_hour * MINS_PER_HOUR + tm_min) * SECS_PER_MINUTE)
* USECS_PER_SEC) + rint(sec * USECS_PER_SEC);
-#else
- time = ((tm_hour * MINS_PER_HOUR + tm_min) * SECS_PER_MINUTE) + sec;
-#endif
PG_RETURN_TIMEADT(time);
}
static void
AdjustTimeForTypmod(TimeADT *time, int32 typmod)
{
-#ifdef HAVE_INT64_TIMESTAMP
static const int64 TimeScales[MAX_TIME_PRECISION + 1] = {
INT64CONST(1000000),
INT64CONST(100000),
INT64CONST(5),
INT64CONST(0)
};
-#else
- /* note MAX_TIME_PRECISION differs in this case */
- static const double TimeScales[MAX_TIME_PRECISION + 1] = {
- 1.0,
- 10.0,
- 100.0,
- 1000.0,
- 10000.0,
- 100000.0,
- 1000000.0,
- 10000000.0,
- 100000000.0,
- 1000000000.0,
- 10000000000.0
- };
-#endif
if (typmod >= 0 && typmod <= MAX_TIME_PRECISION)
{
- /*
- * Note: this round-to-nearest code is not completely consistent about
- * rounding values that are exactly halfway between integral values.
- * On most platforms, rint() will implement round-to-nearest-even, but
- * the integer code always rounds up (away from zero). Is it worth
- * trying to be consistent?
- */
-#ifdef HAVE_INT64_TIMESTAMP
if (*time >= INT64CONST(0))
*time = ((*time + TimeOffsets[typmod]) / TimeScales[typmod]) *
TimeScales[typmod];
else
*time = -((((-*time) + TimeOffsets[typmod]) / TimeScales[typmod]) *
TimeScales[typmod]);
-#else
- *time = rint((double) *time * TimeScales[typmod]) / TimeScales[typmod];
-#endif
}
}
Datum
time_hash(PG_FUNCTION_ARGS)
{
- /* We can use either hashint8 or hashfloat8 directly */
-#ifdef HAVE_INT64_TIMESTAMP
return hashint8(fcinfo);
-#else
- return hashfloat8(fcinfo);
-#endif
}
Datum
(errcode(ERRCODE_DATETIME_VALUE_OUT_OF_RANGE),
errmsg("timestamp out of range")));
-#ifdef HAVE_INT64_TIMESTAMP
-
/*
* Could also do this with time = (timestamp / USECS_PER_DAY *
* USECS_PER_DAY) - timestamp;
*/
result = ((((tm->tm_hour * MINS_PER_HOUR + tm->tm_min) * SECS_PER_MINUTE) + tm->tm_sec) *
USECS_PER_SEC) + fsec;
-#else
- result = ((tm->tm_hour * MINS_PER_HOUR + tm->tm_min) * SECS_PER_MINUTE) + tm->tm_sec + fsec;
-#endif
PG_RETURN_TIMEADT(result);
}
(errcode(ERRCODE_DATETIME_VALUE_OUT_OF_RANGE),
errmsg("timestamp out of range")));
-#ifdef HAVE_INT64_TIMESTAMP
-
/*
* Could also do this with time = (timestamp / USECS_PER_DAY *
* USECS_PER_DAY) - timestamp;
*/
result = ((((tm->tm_hour * MINS_PER_HOUR + tm->tm_min) * SECS_PER_MINUTE) + tm->tm_sec) *
USECS_PER_SEC) + fsec;
-#else
- result = ((tm->tm_hour * MINS_PER_HOUR + tm->tm_min) * SECS_PER_MINUTE) + tm->tm_sec + fsec;
-#endif
PG_RETURN_TIMEADT(result);
}
{
Interval *span = PG_GETARG_INTERVAL_P(0);
TimeADT result;
-
-#ifdef HAVE_INT64_TIMESTAMP
int64 days;
result = span->time;
days = (-result + USECS_PER_DAY - 1) / USECS_PER_DAY;
result += days * USECS_PER_DAY;
}
-#else
- result = span->time;
- if (result >= (double) SECS_PER_DAY || result < 0)
- result -= floor(result / (double) SECS_PER_DAY) * (double) SECS_PER_DAY;
-#endif
PG_RETURN_TIMEADT(result);
}
Interval *span = PG_GETARG_INTERVAL_P(1);
TimeADT result;
-#ifdef HAVE_INT64_TIMESTAMP
result = time + span->time;
result -= result / USECS_PER_DAY * USECS_PER_DAY;
if (result < INT64CONST(0))
result += USECS_PER_DAY;
-#else
- TimeADT time1;
-
- result = time + span->time;
- TMODULO(result, time1, (double) SECS_PER_DAY);
- if (result < 0)
- result += SECS_PER_DAY;
-#endif
PG_RETURN_TIMEADT(result);
}
Interval *span = PG_GETARG_INTERVAL_P(1);
TimeADT result;
-#ifdef HAVE_INT64_TIMESTAMP
result = time - span->time;
result -= result / USECS_PER_DAY * USECS_PER_DAY;
if (result < INT64CONST(0))
result += USECS_PER_DAY;
-#else
- TimeADT time1;
-
- result = time - span->time;
- TMODULO(result, time1, (double) SECS_PER_DAY);
- if (result < 0)
- result += SECS_PER_DAY;
-#endif
PG_RETURN_TIMEADT(result);
}
switch (val)
{
case DTK_MICROSEC:
-#ifdef HAVE_INT64_TIMESTAMP
result = tm->tm_sec * 1000000.0 + fsec;
-#else
- result = (tm->tm_sec + fsec) * 1000000;
-#endif
break;
case DTK_MILLISEC:
-#ifdef HAVE_INT64_TIMESTAMP
result = tm->tm_sec * 1000.0 + fsec / 1000.0;
-#else
- result = (tm->tm_sec + fsec) * 1000;
-#endif
break;
case DTK_SECOND:
-#ifdef HAVE_INT64_TIMESTAMP
result = tm->tm_sec + fsec / 1000000.0;
-#else
- result = tm->tm_sec + fsec;
-#endif
break;
case DTK_MINUTE:
}
else if (type == RESERV && val == DTK_EPOCH)
{
-#ifdef HAVE_INT64_TIMESTAMP
result = time / 1000000.0;
-#else
- result = time;
-#endif
}
else
{
static int
tm2timetz(struct pg_tm * tm, fsec_t fsec, int tz, TimeTzADT *result)
{
-#ifdef HAVE_INT64_TIMESTAMP
result->time = ((((tm->tm_hour * MINS_PER_HOUR + tm->tm_min) * SECS_PER_MINUTE) + tm->tm_sec) *
USECS_PER_SEC) + fsec;
-#else
- result->time = ((tm->tm_hour * MINS_PER_HOUR + tm->tm_min) * SECS_PER_MINUTE) + tm->tm_sec + fsec;
-#endif
result->zone = tz;
return 0;
result = (TimeTzADT *) palloc(sizeof(TimeTzADT));
-#ifdef HAVE_INT64_TIMESTAMP
result->time = pq_getmsgint64(buf);
if (result->time < INT64CONST(0) || result->time > USECS_PER_DAY)
ereport(ERROR,
(errcode(ERRCODE_DATETIME_VALUE_OUT_OF_RANGE),
errmsg("time out of range")));
-#else
- result->time = pq_getmsgfloat8(buf);
-
- if (result->time < 0 || result->time > (double) SECS_PER_DAY)
- ereport(ERROR,
- (errcode(ERRCODE_DATETIME_VALUE_OUT_OF_RANGE),
- errmsg("time out of range")));
-#endif
result->zone = pq_getmsgint(buf, sizeof(result->zone));
StringInfoData buf;
pq_begintypsend(&buf);
-#ifdef HAVE_INT64_TIMESTAMP
pq_sendint64(&buf, time->time);
-#else
- pq_sendfloat8(&buf, time->time);
-#endif
pq_sendint(&buf, time->zone, sizeof(time->zone));
PG_RETURN_BYTEA_P(pq_endtypsend(&buf));
}
{
TimeOffset trem = time->time;
-#ifdef HAVE_INT64_TIMESTAMP
tm->tm_hour = trem / USECS_PER_HOUR;
trem -= tm->tm_hour * USECS_PER_HOUR;
tm->tm_min = trem / USECS_PER_MINUTE;
trem -= tm->tm_min * USECS_PER_MINUTE;
tm->tm_sec = trem / USECS_PER_SEC;
*fsec = trem - tm->tm_sec * USECS_PER_SEC;
-#else
-recalc:
- TMODULO(trem, tm->tm_hour, (double) SECS_PER_HOUR);
- TMODULO(trem, tm->tm_min, (double) SECS_PER_MINUTE);
- TMODULO(trem, tm->tm_sec, 1.0);
- trem = TIMEROUND(trem);
- /* roundoff may need to propagate to higher-order fields */
- if (trem >= 1.0)
- {
- trem = ceil(time->time);
- goto recalc;
- }
- *fsec = trem;
-#endif
if (tzp != NULL)
*tzp = time->zone;
t2;
/* Primary sort is by true (GMT-equivalent) time */
-#ifdef HAVE_INT64_TIMESTAMP
t1 = time1->time + (time1->zone * USECS_PER_SEC);
t2 = time2->time + (time2->zone * USECS_PER_SEC);
-#else
- t1 = time1->time + time1->zone;
- t2 = time2->time + time2->zone;
-#endif
if (t1 > t2)
return 1;
/*
* To avoid any problems with padding bytes in the struct, we figure the
- * field hashes separately and XOR them. This also provides a convenient
- * framework for dealing with the fact that the time field might be either
- * double or int64.
+ * field hashes separately and XOR them.
*/
-#ifdef HAVE_INT64_TIMESTAMP
thash = DatumGetUInt32(DirectFunctionCall1(hashint8,
Int64GetDatumFast(key->time)));
-#else
- thash = DatumGetUInt32(DirectFunctionCall1(hashfloat8,
- Float8GetDatumFast(key->time)));
-#endif
thash ^= DatumGetUInt32(hash_uint32(key->zone));
PG_RETURN_UINT32(thash);
}
Interval *span = PG_GETARG_INTERVAL_P(1);
TimeTzADT *result;
-#ifndef HAVE_INT64_TIMESTAMP
- TimeTzADT time1;
-#endif
-
result = (TimeTzADT *) palloc(sizeof(TimeTzADT));
-#ifdef HAVE_INT64_TIMESTAMP
result->time = time->time + span->time;
result->time -= result->time / USECS_PER_DAY * USECS_PER_DAY;
if (result->time < INT64CONST(0))
result->time += USECS_PER_DAY;
-#else
- result->time = time->time + span->time;
- TMODULO(result->time, time1.time, (double) SECS_PER_DAY);
- if (result->time < 0)
- result->time += SECS_PER_DAY;
-#endif
result->zone = time->zone;
Interval *span = PG_GETARG_INTERVAL_P(1);
TimeTzADT *result;
-#ifndef HAVE_INT64_TIMESTAMP
- TimeTzADT time1;
-#endif
-
result = (TimeTzADT *) palloc(sizeof(TimeTzADT));
-#ifdef HAVE_INT64_TIMESTAMP
result->time = time->time - span->time;
result->time -= result->time / USECS_PER_DAY * USECS_PER_DAY;
if (result->time < INT64CONST(0))
result->time += USECS_PER_DAY;
-#else
- result->time = time->time - span->time;
- TMODULO(result->time, time1.time, (double) SECS_PER_DAY);
- if (result->time < 0)
- result->time += SECS_PER_DAY;
-#endif
result->zone = time->zone;
ereport(ERROR,
(errcode(ERRCODE_DATETIME_VALUE_OUT_OF_RANGE),
errmsg("date out of range for timestamp")));
-#ifdef HAVE_INT64_TIMESTAMP
result = date * USECS_PER_DAY + time->time + time->zone * USECS_PER_SEC;
-#else
- result = date * (double) SECS_PER_DAY + time->time + time->zone;
-#endif
/*
* Since it is possible to go beyond allowed timestamptz range because
break;
case DTK_MICROSEC:
-#ifdef HAVE_INT64_TIMESTAMP
result = tm->tm_sec * 1000000.0 + fsec;
-#else
- result = (tm->tm_sec + fsec) * 1000000;
-#endif
break;
case DTK_MILLISEC:
-#ifdef HAVE_INT64_TIMESTAMP
result = tm->tm_sec * 1000.0 + fsec / 1000.0;
-#else
- result = (tm->tm_sec + fsec) * 1000;
-#endif
break;
case DTK_SECOND:
-#ifdef HAVE_INT64_TIMESTAMP
result = tm->tm_sec + fsec / 1000000.0;
-#else
- result = tm->tm_sec + fsec;
-#endif
break;
case DTK_MINUTE:
}
else if (type == RESERV && val == DTK_EPOCH)
{
-#ifdef HAVE_INT64_TIMESTAMP
result = time->time / 1000000.0 + time->zone;
-#else
- result = time->time + time->zone;
-#endif
}
else
{
result = (TimeTzADT *) palloc(sizeof(TimeTzADT));
-#ifdef HAVE_INT64_TIMESTAMP
result->time = t->time + (t->zone - tz) * USECS_PER_SEC;
while (result->time < INT64CONST(0))
result->time += USECS_PER_DAY;
while (result->time >= USECS_PER_DAY)
result->time -= USECS_PER_DAY;
-#else
- result->time = t->time + (t->zone - tz);
- while (result->time < 0)
- result->time += SECS_PER_DAY;
- while (result->time >= SECS_PER_DAY)
- result->time -= SECS_PER_DAY;
-#endif
result->zone = tz;
DatumGetCString(DirectFunctionCall1(interval_out,
PointerGetDatum(zone))))));
-#ifdef HAVE_INT64_TIMESTAMP
tz = -(zone->time / USECS_PER_SEC);
-#else
- tz = -(zone->time);
-#endif
result = (TimeTzADT *) palloc(sizeof(TimeTzADT));
-#ifdef HAVE_INT64_TIMESTAMP
result->time = time->time + (time->zone - tz) * USECS_PER_SEC;
while (result->time < INT64CONST(0))
result->time += USECS_PER_DAY;
while (result->time >= USECS_PER_DAY)
result->time -= USECS_PER_DAY;
-#else
- result->time = time->time + (time->zone - tz);
- while (result->time < 0)
- result->time += SECS_PER_DAY;
- while (result->time >= SECS_PER_DAY)
- result->time -= SECS_PER_DAY;
-#endif
result->zone = tz;
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