QUERY: SELECT p1.oid, p1.* FROM pg_operator AS p1
WHERE p1.oprleft != 0 AND NOT EXISTS(SELECT * FROM pg_type AS t1 WHERE t1.oid = p1.oprleft);
oid|oprname|oprowner|oprprec|oprkind|oprisleft|oprcanhash|oprleft|oprright|oprresult|oprcom|oprnegate|oprlsortop|oprrsortop|oprcode|oprrest|oprjoin
---+-------+--------+-------+-------+---------+----------+-------+--------+---------+------+---------+----------+----------+-------+-------+-------
(0 rows)

QUERY: SELECT p1.oid, p1.* FROM pg_operator AS p1
WHERE p1.oprright != 0 AND NOT EXISTS(SELECT * FROM pg_type AS t1 WHERE t1.oid = p1.oprright);
oid|oprname|oprowner|oprprec|oprkind|oprisleft|oprcanhash|oprleft|oprright|oprresult|oprcom|oprnegate|oprlsortop|oprrsortop|oprcode|oprrest|oprjoin
---+-------+--------+-------+-------+---------+----------+-------+--------+---------+------+---------+----------+----------+-------+-------+-------
(0 rows)

QUERY: SELECT p1.oid, p1.* FROM pg_operator AS p1
WHERE p1.oprresult != 0 AND NOT EXISTS(SELECT * FROM pg_type AS t1 WHERE t1.oid = p1.oprresult);
oid|oprname|oprowner|oprprec|oprkind|oprisleft|oprcanhash|oprleft|oprright|oprresult|oprcom|oprnegate|oprlsortop|oprrsortop|oprcode|oprrest|oprjoin
---+-------+--------+-------+-------+---------+----------+-------+--------+---------+------+---------+----------+----------+-------+-------+-------
(0 rows)

QUERY: SELECT p1.oid, p1.* FROM pg_operator AS p1
WHERE p1.oprcom != 0 AND NOT
      EXISTS(SELECT * FROM pg_operator AS p2 WHERE p2.oid = p1.oprcom);
oid|oprname|oprowner|oprprec|oprkind|oprisleft|oprcanhash|oprleft|oprright|oprresult|oprcom|oprnegate|oprlsortop|oprrsortop|oprcode|oprrest|oprjoin
---+-------+--------+-------+-------+---------+----------+-------+--------+---------+------+---------+----------+----------+-------+-------+-------
(0 rows)

QUERY: SELECT p1.oid, p1.* FROM pg_operator AS p1
WHERE p1.oprnegate != 0 AND NOT
      EXISTS(SELECT * FROM pg_operator AS p2 WHERE p2.oid = p1.oprnegate);
oid|oprname|oprowner|oprprec|oprkind|oprisleft|oprcanhash|oprleft|oprright|oprresult|oprcom|oprnegate|oprlsortop|oprrsortop|oprcode|oprrest|oprjoin
---+-------+--------+-------+-------+---------+----------+-------+--------+---------+------+---------+----------+----------+-------+-------+-------
(0 rows)

QUERY: SELECT p1.oid, p1.* FROM pg_operator AS p1
WHERE p1.oprlsortop != 0 AND NOT
      EXISTS(SELECT * FROM pg_operator AS p2 WHERE p2.oid = p1.oprlsortop);
oid|oprname|oprowner|oprprec|oprkind|oprisleft|oprcanhash|oprleft|oprright|oprresult|oprcom|oprnegate|oprlsortop|oprrsortop|oprcode|oprrest|oprjoin
---+-------+--------+-------+-------+---------+----------+-------+--------+---------+------+---------+----------+----------+-------+-------+-------
(0 rows)

QUERY: SELECT p1.oid, p1.* FROM pg_operator AS p1
WHERE p1.oprrsortop != 0 AND NOT
      EXISTS(SELECT * FROM pg_operator AS p2 WHERE p2.oid = p1.oprrsortop);
oid|oprname|oprowner|oprprec|oprkind|oprisleft|oprcanhash|oprleft|oprright|oprresult|oprcom|oprnegate|oprlsortop|oprrsortop|oprcode|oprrest|oprjoin
---+-------+--------+-------+-------+---------+----------+-------+--------+---------+------+---------+----------+----------+-------+-------+-------
(0 rows)

QUERY: SELECT p1.oid, p1.oprcode, p2.oid, p2.oprcode
FROM pg_operator AS p1, pg_operator AS p2
WHERE p1.oid != p2.oid AND
    p1.oprname = p2.oprname AND
    p1.oprkind = p2.oprkind AND
    p1.oprleft = p2.oprleft AND
    p1.oprright = p2.oprright;
oid|oprcode|oid|oprcode
---+-------+---+-------
(0 rows)

QUERY: SELECT p1.oid, p1.oprcode, p2.oid, p2.oprcode
FROM pg_operator AS p1, pg_operator AS p2
WHERE p1.oprcom = p2.oid AND
    (p1.oprkind != 'b' OR
     p1.oprleft != p2.oprright OR
     p1.oprright != p2.oprleft OR
     p1.oprresult != p2.oprresult OR
     p1.oid != p2.oprcom);
oid|oprcode|oid|oprcode
---+-------+---+-------
(0 rows)

QUERY: SELECT p1.oid, p1.oprcode, p2.oid, p2.oprcode
FROM pg_operator AS p1, pg_operator AS p2
WHERE p1.oprnegate = p2.oid AND
    (p1.oprkind != p2.oprkind OR
     p1.oprleft != p2.oprleft OR
     p1.oprright != p2.oprright OR
     p1.oprresult != 16 OR
     p2.oprresult != 16 OR
     p1.oid != p2.oprnegate);
oid|oprcode|oid|oprcode
---+-------+---+-------
(0 rows)

QUERY: SELECT p1.oid, p1.oprcode, p2.oid, p2.oprcode
FROM pg_operator AS p1, pg_operator AS p2
WHERE p1.oprlsortop = p2.oid AND
    (p1.oprname != '=' OR p2.oprname != '<' OR
     p1.oprkind != 'b' OR p2.oprkind != 'b' OR
     p1.oprleft != p2.oprleft OR
     p1.oprleft != p2.oprright OR
     p1.oprresult != 16 OR
     p2.oprresult != 16 OR
     p1.oprrsortop = 0);
oid|oprcode|oid|oprcode
---+-------+---+-------
(0 rows)

QUERY: SELECT p1.oid, p1.oprcode, p2.oid, p2.oprcode
FROM pg_operator AS p1, pg_operator AS p2
WHERE p1.oprrsortop = p2.oid AND
    (p1.oprname != '=' OR p2.oprname != '<' OR
     p1.oprkind != 'b' OR p2.oprkind != 'b' OR
     p1.oprright != p2.oprleft OR
     p1.oprright != p2.oprright OR
     p1.oprresult != 16 OR
     p2.oprresult != 16 OR
     p1.oprlsortop = 0);
oid|oprcode|oid|oprcode
---+-------+---+-------
(0 rows)

QUERY: SELECT p1.oid, p1.* FROM pg_operator AS p1
WHERE p1.oprlsortop != 0 AND
      p1.oprcom = 0;
oid|oprname|oprowner|oprprec|oprkind|oprisleft|oprcanhash|oprleft|oprright|oprresult|oprcom|oprnegate|oprlsortop|oprrsortop|oprcode|oprrest|oprjoin
---+-------+--------+-------+-------+---------+----------+-------+--------+---------+------+---------+----------+----------+-------+-------+-------
(0 rows)

QUERY: SELECT p1.oid, p1.* FROM pg_operator AS p1
WHERE p1.oprlsortop != 0 AND NOT
      EXISTS(SELECT * FROM pg_operator AS p2 WHERE
	p2.oprname = '<' AND
	p2.oprleft = p1.oprleft AND
	p2.oprright = p1.oprright AND
	p2.oprkind = 'b');
oid|oprname|oprowner|oprprec|oprkind|oprisleft|oprcanhash|oprleft|oprright|oprresult|oprcom|oprnegate|oprlsortop|oprrsortop|oprcode|oprrest|oprjoin
---+-------+--------+-------+-------+---------+----------+-------+--------+---------+------+---------+----------+----------+-------+-------+-------
(0 rows)

QUERY: SELECT p1.oid, p1.* FROM pg_operator AS p1
WHERE p1.oprlsortop != 0 AND NOT
      EXISTS(SELECT * FROM pg_operator AS p2 WHERE
	p2.oprname = '>' AND
	p2.oprleft = p1.oprleft AND
	p2.oprright = p1.oprright AND
	p2.oprkind = 'b');
oid|oprname|oprowner|oprprec|oprkind|oprisleft|oprcanhash|oprleft|oprright|oprresult|oprcom|oprnegate|oprlsortop|oprrsortop|oprcode|oprrest|oprjoin
---+-------+--------+-------+-------+---------+----------+-------+--------+---------+------+---------+----------+----------+-------+-------+-------
(0 rows)