updated table definitions for views so that they deliver the correct information

AACT_downloader/ClinicalTrialHistory/docker-entrypoint-initdb.d/020_HttpSchema.sql

@@ -92,14 +92,23 @@ Views to allow downloader programs to identify what to download.
 
 CREATE OR REPLACE VIEW http.most_recent_download_status
  AS
- SELECT download_status.nct_id,
+ SELECT t.nct_id,
-    download_status.status,
+    t.status,
-    max(download_status.update_timestamp) AS max
+    t.update_timestamp
-   FROM http.download_status
+   FROM ( SELECT download_status.id,
-  GROUP BY download_status.nct_id, download_status.status;
+            download_status.nct_id,
+            download_status.status,
+            download_status.update_timestamp,
+            row_number() OVER (PARTITION BY download_status.nct_id ORDER BY download_status.update_timestamp DESC) AS rn
+           FROM http.download_status) t
+  WHERE t.rn = 1
+  ORDER BY t.nct_id;
 
 ALTER TABLE http.most_recent_download_status
-    OWNER TO http_requestor;
+    OWNER TO root;
+COMMENT ON VIEW http.most_recent_download_status
+    IS 'List of most recent download status';
+
 
 
 -- View: http.trials_to_download
@@ -108,14 +117,12 @@ ALTER TABLE http.most_recent_download_status
 
 CREATE OR REPLACE VIEW http.trials_to_download
  AS
- SELECT most_recent_download_status.nct_id,
+ SELECT most_recent_download_status.nct_id
-    most_recent_download_status.status,
-    most_recent_download_status.max
    FROM http.most_recent_download_status
   WHERE most_recent_download_status.status = 'Of Interest'::http.history_download_status;
 
 ALTER TABLE http.trials_to_download
-    OWNER TO http_requestor;
+    OWNER TO root;
 COMMENT ON VIEW http.trials_to_download
     IS 'List of trials for which the history needs downloaded';