add doubtful_channel report codes

pm/doubtful_channel/etl/doubtful_channel.sql

@@ -62,8 +62,8 @@ LEFT JOIN
 (
     SELECT partition_day,device_id
     FROM ml.ml_c_et_ck_click_dimen_d
-    where partition_date >= '20200101'
-    AND partition_date < regexp_replace(current_date ,'-','')
+    where partition_day >= '20200101'
+    AND partition_day < regexp_replace(current_date ,'-','')
     GROUP BY partition_day,device_id
 )d
     on a.device_id = d.device_id