marton-bod commented on code in PR #3131:
URL: https://github.com/apache/hive/pull/3131#discussion_r847339367


##########
ql/src/java/org/apache/hadoop/hive/ql/exec/MapOperator.java:
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@@ -673,7 +674,31 @@ private String toErrorMessage(Writable value, Object row, 
ObjectInspector inspec
             ctx.getIoCxt().setRecordIdentifier(null);//so we don't 
accidentally cache the value; shouldn't
             //happen since IO layer either knows how to produce ROW__ID or not 
- but to be safe
           }
-         break;
+          break;
+        case PARTITION_SPEC_ID:

Review Comment:
   Unfortunately we don't have the Table object anywhere around this area as 
far as I can tell, so I'm not sure how we could inject the logic using the 
storage handler. Besides, this method is called `populateVirtualColumns` where 
all the other virtual cols are filled out too, so right now I don't see a 
better place to put it



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