sql execution detail

Hi there, can somebody tell me why sometimes I see this (key1, key2.....) after clicking in Execution Detail (from Submitted Jobs) SELECT * FROM F4211 WHERE ( ( SDLTTR IN ( :KEY1,:KEY2 ) AND SDDCTO = :KEY3 AND SDNXTR <> :KEY4 AND SDAN8 = :KEY5 AND SDDOCO BETWEEN :KEY6 AND :KEY7 AND...