QUERY: CREATE TABLE ABSTIME_TBL (f1 abstime);
QUERY: INSERT INTO ABSTIME_TBL (f1) VALUES ('Jan 14, 1973 03:14:21');
QUERY: INSERT INTO ABSTIME_TBL (f1) VALUES ('Mon May  1 00:30:30 1995'::abstime);
QUERY: INSERT INTO ABSTIME_TBL (f1) VALUES ('epoch'::abstime);
QUERY: INSERT INTO ABSTIME_TBL (f1) VALUES ('current'::abstime);
QUERY: INSERT INTO ABSTIME_TBL (f1) VALUES ('infinity'::abstime);
QUERY: INSERT INTO ABSTIME_TBL (f1) VALUES ('-infinity'::abstime);
QUERY: INSERT INTO ABSTIME_TBL (f1) VALUES ('May 10, 1947 23:59:12');
QUERY: INSERT INTO ABSTIME_TBL (f1) VALUES ('Feb 35, 1946 10:00:00');
ERROR:  Bad abstime external representation 'Feb 35, 1946 10:00:00'
QUERY: INSERT INTO ABSTIME_TBL (f1) VALUES ('Feb 28, 1984 25:08:10');
ERROR:  Bad abstime external representation 'Feb 28, 1984 25:08:10'
QUERY: INSERT INTO ABSTIME_TBL (f1) VALUES ('bad date format');
ERROR:  Bad abstime external representation 'bad date format'
QUERY: INSERT INTO ABSTIME_TBL (f1) VALUES ('Jun 10, 1843');
QUERY: SELECT '' AS eight, ABSTIME_TBL.*;
eight|f1                          
-----+----------------------------
     |Sun Jan 14 03:14:21 1973 PST
     |Mon May 01 00:30:30 1995 PDT
     |epoch                       
     |current                     
     |infinity                    
     |-infinity                   
     |Sat May 10 23:59:12 1947 PST
     |invalid                     
(8 rows)

QUERY: SELECT '' AS six, ABSTIME_TBL.*
   WHERE ABSTIME_TBL.f1 < 'Jun 30, 2001'::abstime;
six|f1                          
---+----------------------------
   |Sun Jan 14 03:14:21 1973 PST
   |Mon May 01 00:30:30 1995 PDT
   |epoch                       
   |current                     
   |-infinity                   
   |Sat May 10 23:59:12 1947 PST
(6 rows)

QUERY: SELECT '' AS six, ABSTIME_TBL.*
   WHERE ABSTIME_TBL.f1 > '-infinity'::abstime;
six|f1                          
---+----------------------------
   |Sun Jan 14 03:14:21 1973 PST
   |Mon May 01 00:30:30 1995 PDT
   |epoch                       
   |current                     
   |infinity                    
   |Sat May 10 23:59:12 1947 PST
(6 rows)

QUERY: SELECT '' AS six, ABSTIME_TBL.*
   WHERE 'May 10, 1947 23:59:12'::abstime <> ABSTIME_TBL.f1;
six|f1                          
---+----------------------------
   |Sun Jan 14 03:14:21 1973 PST
   |Mon May 01 00:30:30 1995 PDT
   |epoch                       
   |current                     
   |infinity                    
   |-infinity                   
(6 rows)

QUERY: SELECT '' AS one, ABSTIME_TBL.*
   WHERE 'current'::abstime = ABSTIME_TBL.f1;
one|f1     
---+-------
   |current
(1 row)

QUERY: SELECT '' AS three, ABSTIME_TBL.*
   WHERE 'epoch'::abstime >= ABSTIME_TBL.f1;
three|f1                          
-----+----------------------------
     |epoch                       
     |-infinity                   
     |Sat May 10 23:59:12 1947 PST
(3 rows)

QUERY: SELECT '' AS four, ABSTIME_TBL.*
   WHERE ABSTIME_TBL.f1 <= 'Jan 14, 1973 03:14:21'::abstime;
four|f1                          
----+----------------------------
    |Sun Jan 14 03:14:21 1973 PST
    |epoch                       
    |-infinity                   
    |Sat May 10 23:59:12 1947 PST
(4 rows)

QUERY: SELECT '' AS four, ABSTIME_TBL.*
  WHERE ABSTIME_TBL.f1 <?>
	'["Apr 1 1950 00:00:00" "Dec 30 1999 23:00:00"]'::tinterval;
four|f1                          
----+----------------------------
    |Sun Jan 14 03:14:21 1973 PST
    |Mon May 01 00:30:30 1995 PDT
    |epoch                       
    |current                     
(4 rows)

QUERY: SELECT '' AS three, ABSTIME_TBL.*
  WHERE  (ABSTIME_TBL.f1 + '@ 3 year'::reltime) 
	< 'Jan 14 14:00:00 1977'::abstime;
three|f1                          
-----+----------------------------
     |Sun Jan 14 03:14:21 1973 PST
     |epoch                       
     |Sat May 10 23:59:12 1947 PST
(3 rows)

QUERY: SELECT '' AS three, ABSTIME_TBL.*
   WHERE  (ABSTIME_TBL.f1 + '@ 3 year ago'::reltime)	
	< 'Jan 14 14:00:00 1971'::abstime;
three|f1                          
-----+----------------------------
     |Sun Jan 14 03:14:21 1973 PST
     |epoch                       
     |Sat May 10 23:59:12 1947 PST
(3 rows)

QUERY: SELECT '' AS three, ABSTIME_TBL.*
   WHERE  (ABSTIME_TBL.f1 - '@ 3 year'::reltime)        
	< 'Jan 14 14:00:00 1971'::abstime;
three|f1                          
-----+----------------------------
     |Sun Jan 14 03:14:21 1973 PST
     |epoch                       
     |Sat May 10 23:59:12 1947 PST
(3 rows)

QUERY: SELECT '' AS three, ABSTIME_TBL.*
   WHERE  (ABSTIME_TBL.f1 - '@ 3 year ago'::reltime)    
        < 'Jan 14 14:00:00 1977'::abstime;
three|f1                          
-----+----------------------------
     |Sun Jan 14 03:14:21 1973 PST
     |epoch                       
     |Sat May 10 23:59:12 1947 PST
(3 rows)

QUERY: SELECT '' AS ten, ABSTIME_TBL.f1 AS abstime, RELTIME_TBL.f1 AS reltime
   WHERE (ABSTIME_TBL.f1 + RELTIME_TBL.f1)
	< 'Jan 14 14:00:00 1971'::abstime
   ORDER BY abstime, reltime;
ten|abstime                     |reltime      
---+----------------------------+-------------
   |Sat May 10 23:59:12 1947 PST|@ 14 secs ago
   |Sat May 10 23:59:12 1947 PST|@ 1 min      
   |Sat May 10 23:59:12 1947 PST|@ 5 hours    
   |Sat May 10 23:59:12 1947 PST|@ 10 days    
   |Sat May 10 23:59:12 1947 PST|@ 3 mons     
   |epoch                       |@ 14 secs ago
   |epoch                       |@ 1 min      
   |epoch                       |@ 5 hours    
   |epoch                       |@ 10 days    
   |epoch                       |@ 3 mons     
(10 rows)