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The field names were not getting passed up to the output expressions. These are found on the RelNode row type object. The change is made in two different flows: The first flow is in CalciteSingleNodePlanner which gets hit when running from impala-shell and the use_calcite_planner query option is used. The second flow is in ExecRequestCreator and gets hit when running with the start-up option that loads a different JniFrontend jar. This mode will soon be deprecated, but is still used for testing purposes. Change-Id: I42818646d98f87d8744585010fc166f9d416aec1 Reviewed-on: http://gerrit.cloudera.org:8080/22117 Tested-by: Impala Public Jenkins <impala-public-jenkins@cloudera.com> Reviewed-by: Joe McDonnell <joemcdonnell@cloudera.com>