sohami commented on a change in pull request #1626: DRILL-6855: Query from 
non-existent proxy user fails with "No default schema selected" when 
impersonation is enabled
URL: https://github.com/apache/drill/pull/1626#discussion_r256688808
 
 

 ##########
 File path: 
exec/java-exec/src/main/java/org/apache/calcite/jdbc/DynamicRootSchema.java
 ##########
 @@ -117,6 +119,14 @@ public void loadSchemaFactory(String schemaName, boolean 
caseSensitive) {
       }
     } catch(ExecutionSetupException | IOException ex) {
       logger.warn("Failed to load schema for \"" + schemaName + "\"!", ex);
+      // We can't proceed further without a schema, throw a runtime exception.
+      UserException.Builder exceptBuilder =
+          UserException
+              .resourceError(ex)
 
 Review comment:
   Had an offline discussion on this that IOException from different plugins is 
overloading different IOException category. ResourceError being most common 
category we are going with it for now.

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