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Review request for hive and Carl Steinbach. Summary ------- The Hive server currently has the framework to process the Cli commands like 'set'. But it returns an empty schema definition for these resultsets. The patch here is to add a getSchema() to the CommandResponse interface. The SetProcessor is modified to build a schema object which is returned with getSchema. HiveServer is modified to call the getSchema for command cases as well. This addresses bug HIVE-2398. https://issues.apache.org/jira/browse/HIVE-2398 Diffs ----- ql/src/java/org/apache/hadoop/hive/ql/processors/CommandProcessorResponse.java 4f7f472 ql/src/java/org/apache/hadoop/hive/ql/processors/SetProcessor.java 97fa1ab service/src/java/org/apache/hadoop/hive/service/HiveServer.java c4b041f Diff: https://reviews.apache.org/r/1605/diff Testing ------- Tested with ODBC program to execute the set command. Ran Hive unit tests. Thanks, Prasad