[GitHub] [incubator-superset] john-bodley commented on a change in pull request #7422: Add "validation_only" queries to the backend

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

john-bodley commented on a change in pull request #7422: Add "validation_only" queries to the backend
URL: https://github.com/apache/incubator-superset/pull/7422#discussion_r280117308
 
 

 ##########
 File path: superset/views/core.py
 ##########
 @@ -2593,6 +2594,14 @@ def sql_json(self):
         limits = [mydb.db_engine_spec.get_limit_from_sql(rendered_query), limit]
         query.limit = min(lim for lim in limits if lim is not None)
 
+        # apply validation transform last -- after template processing
+        if validate_only:
+            spec = mydb.db_engine_spec
+            if spec.supports_validation_queries:
 
 Review comment:
   Shouldn’t this be negated, i.e., if validation is *not* supported a JSON error response is returned? Also given this check doesn’t it make raising of exceptions somewhat of a moot point?

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