... lines):id,type,t_name,t_duration,t_a_id,t_a_name,t_num,t_r_id,t_r_name,t_r_attributes,t_r_tracksTrack :18 3326,Track,In the Arms of Sleep,2 54 ,11 650,The Smashing Pumpkins ,4, 2 24 71, Mellon Collie and the Infinite Sadness (disc 2: Twilight to Starlight),0 1 100 , 14 Track :18 3328,Track,Tales ... 10 0 , 14 Track :18 3328,Track,Tales of a Scorched Earth,228 ,11 650,The Smashing Pumpkins,6,2 24 71, Mellon Collie and the Infinite Sadness (disc 2: Twilight to Starlight),0 1 100 , 14 To get Solr to import the CSV le, ... its unique eld (we delete two documents here):<delete><id>artist :11 6 04& lt;/id><id>artist :11 603</id></delete>Or, you can delete all of the documents that match...