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Postgres FD Implementation
Commit 9e716609 authored by Thomas G. Lockhart's avatar Thomas G. Lockhart
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Support full POSIX-style time zone: EST+3, PST-3, etc. 

We probably support a superset of the spec, but I don't have the spec
 to confirm this.
Update regression tests to include tests for this format.
parent 90c4bab7
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Showing with 195 additions and 96 deletions
src/backend/utils/adt/datetime.c
View file @ 9e716609
...@@ -8,7 +8,7 @@ ...@@ -8,7 +8,7 @@
* *
* *
* IDENTIFICATION * IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/utils/adt/datetime.c,v 1.43 2000/03/14 23:06:36 thomas Exp $ * $Header: /cvsroot/pgsql/src/backend/utils/adt/datetime.c,v 1.44 2000/03/16 14:36:51 thomas Exp $
* *
*------------------------------------------------------------------------- *-------------------------------------------------------------------------
*/ */
...@@ -35,6 +35,8 @@ ...@@ -35,6 +35,8 @@
#define USE_DATE_CACHE 1 #define USE_DATE_CACHE 1
#define ROUND_ALL 0 #define ROUND_ALL 0
static int DecodePosixTimezone(char *str, int *val);
int day_tab[2][13] = { int day_tab[2][13] = {
{31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31, 0}, {31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31, 0},
{31, 29, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31, 0}}; {31, 29, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31, 0}};
...@@ -47,15 +49,6 @@ char *days[] = {"Sunday", "Monday", "Tuesday", "Wednesday", ...@@ -47,15 +49,6 @@ char *days[] = {"Sunday", "Monday", "Tuesday", "Wednesday",
"Thursday", "Friday", "Saturday", NULL}; "Thursday", "Friday", "Saturday", NULL};
#if 0
static void GetEpochTime(struct tm * tm);
#endif
#define UTIME_MINYEAR (1901) #define UTIME_MINYEAR (1901)
#define UTIME_MINMONTH (12) #define UTIME_MINMONTH (12)
#define UTIME_MINDAY (14) #define UTIME_MINDAY (14)
...@@ -399,35 +392,6 @@ j2day(int date) ...@@ -399,35 +392,6 @@ j2day(int date)
} /* j2day() */ } /* j2day() */
#if 0
static double
time2t(const int hour, const int min, const double sec)
{
return (((hour * 60) + min) * 60) + sec;
} /* time2t() */
static void
dt2time(Timestamp jd, int *hour, int *min, double *sec)
{
double time;
time = jd;
*hour = (time / 3600);
time -= ((*hour) * 3600);
*min = (time / 60);
time -= ((*min) * 60);
*sec = JROUND(time);
return;
} /* dt2time() */
#endif
/* /*
* parse and convert date in timestr (the normal interface) * parse and convert date in timestr (the normal interface)
* *
...@@ -493,9 +457,12 @@ ParseDateTime(char *timestr, char *lowstr, ...@@ -493,9 +457,12 @@ ParseDateTime(char *timestr, char *lowstr,
while (isalpha(*cp)) while (isalpha(*cp))
*lp++ = tolower(*cp++); *lp++ = tolower(*cp++);
/* full date string with leading text month? */ /* Full date string with leading text month?
* Could also be a POSIX time zone...
*/
if ((*cp == '-') || (*cp == '/') || (*cp == '.')) if ((*cp == '-') || (*cp == '/') || (*cp == '.'))
{ {
#if 0
/* /*
* special case of Posix timezone "GMT-0800" * special case of Posix timezone "GMT-0800"
* Note that other sign (e.g. "GMT+0800" * Note that other sign (e.g. "GMT+0800"
...@@ -512,6 +479,7 @@ ParseDateTime(char *timestr, char *lowstr, ...@@ -512,6 +479,7 @@ ParseDateTime(char *timestr, char *lowstr,
*cp = '+'; *cp = '+';
continue; continue;
} }
#endif
ftype[nf] = DTK_DATE; ftype[nf] = DTK_DATE;
while (isdigit(*cp) || (*cp == '-') || (*cp == '/') || (*cp == '.')) while (isdigit(*cp) || (*cp == '-') || (*cp == '/') || (*cp == '.'))
...@@ -627,7 +595,21 @@ DecodeDateTime(char **field, int *ftype, int nf, ...@@ -627,7 +595,21 @@ DecodeDateTime(char **field, int *ftype, int nf,
switch (ftype[i]) switch (ftype[i])
{ {
case DTK_DATE: case DTK_DATE:
if (DecodeDate(field[i], fmask, &tmask, tm) != 0) /* Already have a date?
* Then this might be a POSIX time zone
* with an embedded dash (e.g. "PST-3" == "EST")
* - thomas 2000-03-15
*/
if ((fmask & DTK_DATE_M) == DTK_DATE_M)
{
if ((tzp == NULL)
|| (DecodePosixTimezone(field[i], tzp) != 0))
return -1;
ftype[i] = DTK_TZ;
tmask = DTK_M(TZ);
}
else if (DecodeDate(field[i], fmask, &tmask, tm) != 0)
return -1; return -1;
break; break;
...@@ -646,9 +628,29 @@ DecodeDateTime(char **field, int *ftype, int nf, ...@@ -646,9 +628,29 @@ DecodeDateTime(char **field, int *ftype, int nf,
case DTK_TZ: case DTK_TZ:
if (tzp == NULL) if (tzp == NULL)
return -1; return -1;
if (DecodeTimezone(field[i], tzp) != 0)
return -1; {
tmask = DTK_M(TZ); int tz;
if (DecodeTimezone(field[i], &tz) != 0)
return -1;
/* Already have a time zone?
* Then maybe this is the second field of a POSIX time:
* EST+3 (equivalent to PST)
*/
if ((i > 0) && ((fmask & DTK_M(TZ)) != 0)
&& (ftype[i-1] == DTK_TZ) && (isalpha(*field[i-1])))
{
*tzp -= tz;
tmask = 0;
}
else
{
*tzp = tz;
tmask = DTK_M(TZ);
}
}
break; break;
case DTK_NUMBER: case DTK_NUMBER:
...@@ -779,6 +781,7 @@ DecodeDateTime(char **field, int *ftype, int nf, ...@@ -779,6 +781,7 @@ DecodeDateTime(char **field, int *ftype, int nf,
if (tzp == NULL) if (tzp == NULL)
return -1; return -1;
*tzp = val * 60; *tzp = val * 60;
ftype[i] = DTK_TZ;
break; break;
case TZ: case TZ:
...@@ -786,25 +789,7 @@ DecodeDateTime(char **field, int *ftype, int nf, ...@@ -786,25 +789,7 @@ DecodeDateTime(char **field, int *ftype, int nf,
if (tzp == NULL) if (tzp == NULL)
return -1; return -1;
*tzp = val * 60; *tzp = val * 60;
ftype[i] = DTK_TZ;
/* Swallow an immediately succeeding timezone if this is GMT
* This handles the odd case in FreeBSD of "GMT+0800"
* but note that we need to flip the sign on this too.
* Claims to be some sort of POSIX standard format :(
* - thomas 2000-01-20
*/
if ((i < (nf-1)) && (ftype[i+1] == DTK_TZ)
&& (strcmp(field[i], "gmt") == 0))
{
i++;
if (DecodeTimezone(field[i], tzp) != 0)
return -1;
/* flip the sign per POSIX standard */
*tzp = -(*tzp);
}
break; break;
case IGNORE: case IGNORE:
...@@ -962,6 +947,19 @@ DecodeTimeOnly(char **field, int *ftype, int nf, ...@@ -962,6 +947,19 @@ DecodeTimeOnly(char **field, int *ftype, int nf,
{ {
switch (ftype[i]) switch (ftype[i])
{ {
case DTK_DATE:
/* This might be a POSIX time zone
* with an embedded dash (e.g. "PST-3" == "EST")
* - thomas 2000-03-15
*/
if ((tzp == NULL)
|| (DecodePosixTimezone(field[i], tzp) != 0))
return -1;
ftype[i] = DTK_TZ;
tmask = DTK_M(TZ);
break;
case DTK_TIME: case DTK_TIME:
if (DecodeTime(field[i], fmask, &tmask, tm, fsec) != 0) if (DecodeTime(field[i], fmask, &tmask, tm, fsec) != 0)
return -1; return -1;
...@@ -970,9 +968,29 @@ DecodeTimeOnly(char **field, int *ftype, int nf, ...@@ -970,9 +968,29 @@ DecodeTimeOnly(char **field, int *ftype, int nf,
case DTK_TZ: case DTK_TZ:
if (tzp == NULL) if (tzp == NULL)
return -1; return -1;
if (DecodeTimezone(field[i], tzp) != 0)
return -1; {
tmask = DTK_M(TZ); int tz;
if (DecodeTimezone(field[i], &tz) != 0)
return -1;
/* Already have a time zone?
* Then maybe this is the second field of a POSIX time:
* EST+3 (equivalent to PST)
*/
if ((i > 0) && ((fmask & DTK_M(TZ)) != 0)
&& (ftype[i-1] == DTK_TZ) && (isalpha(*field[i-1])))
{
*tzp -= tz;
tmask = 0;
}
else
{
*tzp = tz;
tmask = DTK_M(TZ);
}
}
break; break;
case DTK_NUMBER: case DTK_NUMBER:
...@@ -1015,6 +1033,41 @@ DecodeTimeOnly(char **field, int *ftype, int nf, ...@@ -1015,6 +1033,41 @@ DecodeTimeOnly(char **field, int *ftype, int nf,
break; break;
case DTZMOD:
/*
* daylight savings time modifier (solves "MET
* DST" syntax)
*/
tmask |= DTK_M(DTZ);
tm->tm_isdst = 1;
if (tzp == NULL)
return -1;
*tzp += val * 60;
break;
case DTZ:
/*
* set mask for TZ here _or_ check for DTZ later
* when getting default timezone
*/
tmask |= DTK_M(TZ);
tm->tm_isdst = 1;
if (tzp == NULL)
return -1;
*tzp = val * 60;
ftype[i] = DTK_TZ;
break;
case TZ:
tm->tm_isdst = 0;
if (tzp == NULL)
return -1;
*tzp = val * 60;
ftype[i] = DTK_TZ;
break;
case IGNORE: case IGNORE:
break; break;
...@@ -1486,6 +1539,47 @@ DecodeTimezone(char *str, int *tzp) ...@@ -1486,6 +1539,47 @@ DecodeTimezone(char *str, int *tzp)
} /* DecodeTimezone() */ } /* DecodeTimezone() */
/* DecodePosixTimezone()
* Interpret string as a POSIX-compatible timezone:
* PST-hh:mm
* PST+h
* - thomas 2000-03-15
*/
static int
DecodePosixTimezone(char *str, int *tzp)
{
int val, tz;
int type;
char *cp;
char delim;
cp = str;
while ((*cp != '\0') && isalpha(*cp))
cp++;
if (DecodeTimezone(cp, &tz) != 0)
return -1;
delim = *cp;
*cp = '\0';
type = DecodeSpecial(MAXDATEFIELDS-1, str, &val);
*cp = delim;
switch(type)
{
case DTZ:
case TZ:
*tzp = (val * 60) - tz;
break;
default:
return -1;
}
return 0;
} /* DecodePosixTimezone() */
/* DecodeSpecial() /* DecodeSpecial()
* Decode text string using lookup table. * Decode text string using lookup table.
* Implement a cache lookup since it is likely that dates * Implement a cache lookup since it is likely that dates
......
src/test/regress/sql/horology.sql
View file @ 9e716609
...@@ -20,29 +20,29 @@ INSERT INTO TEMP_TIMESTAMP (f1) ...@@ -20,29 +20,29 @@ INSERT INTO TEMP_TIMESTAMP (f1)
WHERE d1 BETWEEN '13-jun-1957' AND '1-jan-1997' WHERE d1 BETWEEN '13-jun-1957' AND '1-jan-1997'
OR d1 BETWEEN '1-jan-1999' AND '1-jan-2010'; OR d1 BETWEEN '1-jan-1999' AND '1-jan-2010';
SELECT '' AS "11", f1 AS timestamp SELECT '' AS "15", f1 AS timestamp
FROM TEMP_TIMESTAMP FROM TEMP_TIMESTAMP
ORDER BY timestamp; ORDER BY timestamp;
SELECT '' AS "110", d.f1 AS timestamp, t.f1 AS interval, d.f1 + t.f1 AS plus SELECT '' AS "150", d.f1 AS timestamp, t.f1 AS interval, d.f1 + t.f1 AS plus
FROM TEMP_TIMESTAMP d, INTERVAL_TBL t FROM TEMP_TIMESTAMP d, INTERVAL_TBL t
ORDER BY plus, timestamp, interval; ORDER BY plus, timestamp, interval;
SELECT '' AS "110", d.f1 AS timestamp, t.f1 AS interval, d.f1 - t.f1 AS minus SELECT '' AS "150", d.f1 AS timestamp, t.f1 AS interval, d.f1 - t.f1 AS minus
FROM TEMP_TIMESTAMP d, INTERVAL_TBL t FROM TEMP_TIMESTAMP d, INTERVAL_TBL t
WHERE isfinite(d.f1) WHERE isfinite(d.f1)
ORDER BY minus, timestamp, interval; ORDER BY minus, timestamp, interval;
SELECT '' AS "11", d.f1 AS timestamp, timestamp '1980-01-06 00:00 GMT' AS gpstime_zero, SELECT '' AS "15", d.f1 AS timestamp, timestamp '1980-01-06 00:00 GMT' AS gpstime_zero,
d.f1 - timestamp '1980-01-06 00:00 GMT' AS difference d.f1 - timestamp '1980-01-06 00:00 GMT' AS difference
FROM TEMP_TIMESTAMP d FROM TEMP_TIMESTAMP d
ORDER BY difference; ORDER BY difference;
SELECT '' AS "121", d1.f1 AS timestamp1, d2.f1 AS timestamp2, d1.f1 - d2.f1 AS difference SELECT '' AS "225", d1.f1 AS timestamp1, d2.f1 AS timestamp2, d1.f1 - d2.f1 AS difference
FROM TEMP_TIMESTAMP d1, TEMP_TIMESTAMP d2 FROM TEMP_TIMESTAMP d1, TEMP_TIMESTAMP d2
ORDER BY timestamp1, timestamp2, difference; ORDER BY timestamp1, timestamp2, difference;
SELECT '' as fifty, d1 as timestamp, SELECT '' as "54", d1 as timestamp,
date_part('year', d1) AS year, date_part('month', d1) AS month, date_part('year', d1) AS year, date_part('month', d1) AS month,
date_part('day',d1) AS day, date_part('hour', d1) AS hour, date_part('day',d1) AS day, date_part('hour', d1) AS hour,
date_part('minute', d1) AS minute, date_part('second', d1) AS second date_part('minute', d1) AS minute, date_part('second', d1) AS second
...@@ -66,12 +66,12 @@ SELECT '' AS four, f1 AS abstime, ...@@ -66,12 +66,12 @@ SELECT '' AS four, f1 AS abstime,
-- Conversions -- Conversions
-- --
SELECT '' AS "11", f1 AS timestamp, date( f1) AS date SELECT '' AS "15", f1 AS timestamp, date( f1) AS date
FROM TEMP_TIMESTAMP FROM TEMP_TIMESTAMP
WHERE f1 <> timestamp 'current' WHERE f1 <> timestamp 'current'
ORDER BY date; ORDER BY date;
SELECT '' AS "11", f1 AS timestamp, abstime( f1) AS abstime SELECT '' AS "15", f1 AS timestamp, abstime( f1) AS abstime
FROM TEMP_TIMESTAMP FROM TEMP_TIMESTAMP
ORDER BY abstime; ORDER BY abstime;
...@@ -102,13 +102,13 @@ SET DateStyle TO 'US,Postgres'; ...@@ -102,13 +102,13 @@ SET DateStyle TO 'US,Postgres';
SHOW DateStyle; SHOW DateStyle;
SELECT '' AS sixty_two, d1 AS us_postgres FROM TIMESTAMP_TBL; SELECT '' AS "66", d1 AS us_postgres FROM TIMESTAMP_TBL;
SELECT '' AS eight, f1 AS us_postgres FROM ABSTIME_TBL; SELECT '' AS eight, f1 AS us_postgres FROM ABSTIME_TBL;
SET DateStyle TO 'US,ISO'; SET DateStyle TO 'US,ISO';
SELECT '' AS sixty_two, d1 AS us_iso FROM TIMESTAMP_TBL; SELECT '' AS "66", d1 AS us_iso FROM TIMESTAMP_TBL;
SELECT '' AS eight, f1 AS us_iso FROM ABSTIME_TBL; SELECT '' AS eight, f1 AS us_iso FROM ABSTIME_TBL;
...@@ -116,7 +116,7 @@ SET DateStyle TO 'US,SQL'; ...@@ -116,7 +116,7 @@ SET DateStyle TO 'US,SQL';
SHOW DateStyle; SHOW DateStyle;
SELECT '' AS sixty_two, d1 AS us_sql FROM TIMESTAMP_TBL; SELECT '' AS "66", d1 AS us_sql FROM TIMESTAMP_TBL;
SELECT '' AS eight, f1 AS us_sql FROM ABSTIME_TBL; SELECT '' AS eight, f1 AS us_sql FROM ABSTIME_TBL;
...@@ -128,7 +128,7 @@ INSERT INTO TIMESTAMP_TBL VALUES('13/06/1957'); ...@@ -128,7 +128,7 @@ INSERT INTO TIMESTAMP_TBL VALUES('13/06/1957');
SELECT count(*) as one FROM TIMESTAMP_TBL WHERE d1 = 'Jun 13 1957'; SELECT count(*) as one FROM TIMESTAMP_TBL WHERE d1 = 'Jun 13 1957';
SELECT '' AS sixty_three, d1 AS european_postgres FROM TIMESTAMP_TBL; SELECT '' AS "67", d1 AS european_postgres FROM TIMESTAMP_TBL;
SELECT '' AS eight, f1 AS european_postgres FROM ABSTIME_TBL; SELECT '' AS eight, f1 AS european_postgres FROM ABSTIME_TBL;
...@@ -136,7 +136,7 @@ SET DateStyle TO 'European,ISO'; ...@@ -136,7 +136,7 @@ SET DateStyle TO 'European,ISO';
SHOW DateStyle; SHOW DateStyle;
SELECT '' AS sixty_three, d1 AS european_iso FROM TIMESTAMP_TBL; SELECT '' AS "67", d1 AS european_iso FROM TIMESTAMP_TBL;
SELECT '' AS eight, f1 AS european_iso FROM ABSTIME_TBL; SELECT '' AS eight, f1 AS european_iso FROM ABSTIME_TBL;
...@@ -144,7 +144,7 @@ SET DateStyle TO 'European,SQL'; ...@@ -144,7 +144,7 @@ SET DateStyle TO 'European,SQL';
SHOW DateStyle; SHOW DateStyle;
SELECT '' AS sixty_three, d1 AS european_sql FROM TIMESTAMP_TBL; SELECT '' AS "67", d1 AS european_sql FROM TIMESTAMP_TBL;
SELECT '' AS eight, f1 AS european_sql FROM ABSTIME_TBL; SELECT '' AS eight, f1 AS european_sql FROM ABSTIME_TBL;
......
src/test/regress/sql/timestamp.sql
View file @ 9e716609
...@@ -72,8 +72,11 @@ INSERT INTO TIMESTAMP_TBL VALUES ('19970210 173201 -0800'); ...@@ -72,8 +72,11 @@ INSERT INTO TIMESTAMP_TBL VALUES ('19970210 173201 -0800');
INSERT INTO TIMESTAMP_TBL VALUES ('1997-06-10 17:32:01 -07:00'); INSERT INTO TIMESTAMP_TBL VALUES ('1997-06-10 17:32:01 -07:00');
-- POSIX format -- POSIX format
INSERT INTO TIMESTAMP_TBL VALUES ('2000-02-15 23:14:30 GMT+8'); INSERT INTO TIMESTAMP_TBL VALUES ('2000-03-15 08:14:01 GMT+8');
INSERT INTO TIMESTAMP_TBL VALUES ('2000-02-15 23:14:30 EST+3'); INSERT INTO TIMESTAMP_TBL VALUES ('2000-03-15 13:14:02 GMT-1');
INSERT INTO TIMESTAMP_TBL VALUES ('2000-03-15 12:14:03 GMT -2');
INSERT INTO TIMESTAMP_TBL VALUES ('2000-03-15 03:14:04 EST+3');
INSERT INTO TIMESTAMP_TBL VALUES ('2000-03-15 02:14:05 EST +2:00');
-- Variations for acceptable input formats -- Variations for acceptable input formats
INSERT INTO TIMESTAMP_TBL VALUES ('Feb 10 17:32:01 1997 -0800'); INSERT INTO TIMESTAMP_TBL VALUES ('Feb 10 17:32:01 1997 -0800');
...@@ -129,43 +132,45 @@ INSERT INTO TIMESTAMP_TBL VALUES ('Jan 01 17:32:01 2001'); ...@@ -129,43 +132,45 @@ INSERT INTO TIMESTAMP_TBL VALUES ('Jan 01 17:32:01 2001');
INSERT INTO TIMESTAMP_TBL VALUES ('Feb 16 17:32:01 -0097'); INSERT INTO TIMESTAMP_TBL VALUES ('Feb 16 17:32:01 -0097');
INSERT INTO TIMESTAMP_TBL VALUES ('Feb 16 17:32:01 5097 BC'); INSERT INTO TIMESTAMP_TBL VALUES ('Feb 16 17:32:01 5097 BC');
SELECT '' AS sixtythree, d1 FROM TIMESTAMP_TBL; SELECT '' AS "66", d1 FROM TIMESTAMP_TBL;
-- Demonstrate functions and operators -- Demonstrate functions and operators
SELECT '' AS fortythree, d1 FROM TIMESTAMP_TBL SELECT '' AS "47", d1 FROM TIMESTAMP_TBL
WHERE d1 > timestamp '1997-01-02' and d1 != timestamp 'current'; WHERE d1 > timestamp '1997-01-02' and d1 != timestamp 'current';
SELECT '' AS fifteen, d1 FROM TIMESTAMP_TBL SELECT '' AS "15", d1 FROM TIMESTAMP_TBL
WHERE d1 < timestamp '1997-01-02' and d1 != timestamp 'current'; WHERE d1 < timestamp '1997-01-02' and d1 != timestamp 'current';
SELECT '' AS one, d1 FROM TIMESTAMP_TBL SELECT '' AS one, d1 FROM TIMESTAMP_TBL
WHERE d1 = timestamp '1997-01-02' and d1 != timestamp 'current'; WHERE d1 = timestamp '1997-01-02' and d1 != timestamp 'current';
SELECT '' AS fiftyeight, d1 FROM TIMESTAMP_TBL SELECT '' AS "62", d1 FROM TIMESTAMP_TBL
WHERE d1 != timestamp '1997-01-02' and d1 != timestamp 'current'; WHERE d1 != timestamp '1997-01-02' and d1 != timestamp 'current';
SELECT '' AS sixteen, d1 FROM TIMESTAMP_TBL SELECT '' AS "16", d1 FROM TIMESTAMP_TBL
WHERE d1 <= timestamp '1997-01-02' and d1 != timestamp 'current'; WHERE d1 <= timestamp '1997-01-02' and d1 != timestamp 'current';
SELECT '' AS fortyfour, d1 FROM TIMESTAMP_TBL SELECT '' AS "48", d1 FROM TIMESTAMP_TBL
WHERE d1 >= timestamp '1997-01-02' and d1 != timestamp 'current'; WHERE d1 >= timestamp '1997-01-02' and d1 != timestamp 'current';
SELECT '' AS sixtythree, d1 + interval '1 year' AS one_year FROM TIMESTAMP_TBL; SELECT '' AS "66", d1 + interval '1 year' AS one_year FROM TIMESTAMP_TBL;
SELECT '' AS sixtythree, d1 - interval '1 year' AS one_year FROM TIMESTAMP_TBL; SELECT '' AS "66", d1 - interval '1 year' AS one_year FROM TIMESTAMP_TBL;
-- Casting within a BETWEEN qualifier should probably be allowed by the parser. - tgl 97/04/26 SELECT '' AS "53", d1 - timestamp '1997-01-02' AS diff
--SELECT '' AS fifty, d1 - timestamp '1997-01-02' AS diff
-- FROM TIMESTAMP_TBL WHERE d1 BETWEEN timestamp '1902-01-01' AND timestamp '2038-01-01';
SELECT '' AS fifty, d1 - timestamp '1997-01-02' AS diff
FROM TIMESTAMP_TBL WHERE d1 BETWEEN '1902-01-01' AND '2038-01-01'; FROM TIMESTAMP_TBL WHERE d1 BETWEEN '1902-01-01' AND '2038-01-01';
SELECT '' AS fortynine, date_part( 'year', d1) AS year, date_part( 'month', d1) AS month, -- Test casting within a BETWEEN qualifier
SELECT '' AS "53", d1 - timestamp '1997-01-02' AS diff
FROM TIMESTAMP_TBL
WHERE d1 BETWEEN timestamp '1902-01-01' AND timestamp '2038-01-01';
SELECT '' AS "53", date_part( 'year', d1) AS year, date_part( 'month', d1) AS month,
date_part( 'day', d1) AS day, date_part( 'hour', d1) AS hour, date_part( 'day', d1) AS day, date_part( 'hour', d1) AS hour,
date_part( 'minute', d1) AS minute, date_part( 'second', d1) AS second date_part( 'minute', d1) AS minute, date_part( 'second', d1) AS second
FROM TIMESTAMP_TBL WHERE d1 BETWEEN '1902-01-01' AND '2038-01-01'; FROM TIMESTAMP_TBL WHERE d1 BETWEEN '1902-01-01' AND '2038-01-01';
SELECT '' AS fortynine, date_part( 'quarter', d1) AS quarter, date_part( 'msec', d1) AS msec, SELECT '' AS "53", date_part( 'quarter', d1) AS quarter, date_part( 'msec', d1) AS msec,
date_part( 'usec', d1) AS usec date_part( 'usec', d1) AS usec
FROM TIMESTAMP_TBL WHERE d1 BETWEEN '1902-01-01' AND '2038-01-01'; FROM TIMESTAMP_TBL WHERE d1 BETWEEN '1902-01-01' AND '2038-01-01';
......
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