[GitHub] vnnw commented on a change in pull request #4421: Update core.py

[GitBox <gi...@apache.org>]

vnnw commented on a change in pull request #4421: Update core.py
URL: https://github.com/apache/incubator-superset/pull/4421#discussion_r168116469
 
 

 ##########
 File path: superset/views/core.py
 ##########
 @@ -1275,13 +1276,44 @@ def filter(self, datasource_type, datasource_id, column):
             return json_error_response(DATASOURCE_MISSING_ERR)
         if not self.datasource_access(datasource):
             return json_error_response(DATASOURCE_ACCESS_ERR)
-
-        payload = json.dumps(
-            datasource.values_for_column(
-                column,
-                config.get('FILTER_SELECT_ROW_LIMIT', 10000),
-            ),
-            default=utils.json_int_dttm_ser)
+        # Implement: Cache endpoint by datasource and column
+        cache_key = hashlib.md5((datasource_id + column).encode('utf-8')).hexdigest()
+        if cache_key and cache:
+            if (hasattr(datasource, 'database') and datasource.database.cache_timeout):
 
 Review comment:
   I don't think using try-except is proper here. There are three possible places to get cache_timeout value. I wanted to make it cascading fallback.

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