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From "Kavinder Dhaliwal (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HAWQ-973) Check pi_varList in pxfheaders before setting headers
Date Mon, 01 Aug 2016 22:19:21 GMT
Kavinder Dhaliwal created HAWQ-973:

             Summary: Check pi_varList in pxfheaders before setting headers
                 Key: HAWQ-973
                 URL: https://issues.apache.org/jira/browse/HAWQ-973
             Project: Apache HAWQ
          Issue Type: Bug
          Components: PXF
            Reporter: Kavinder Dhaliwal
            Assignee: Goden Yao


extracts the indices of columns to project from pi_varNumbers, but calculates the length based
on pi_targetList. This is similar to how ExecVariableList handles projection. However there
are cases where length(pi_targetList) >0 and length(pi_varNumbers) == 0, so a condition
on pi_varList needs to be added before invoking add_projection_desc_httpheader as is done
in ExecProject.

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