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Posted to issues@hawq.apache.org by "Kavinder Dhaliwal (JIRA)" <ji...@apache.org> on 2016/08/01 22:19:21 UTC

[jira] [Assigned] (HAWQ-973) Check pi_varList in pxfheaders before setting headers

     [ https://issues.apache.org/jira/browse/HAWQ-973?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Kavinder Dhaliwal reassigned HAWQ-973:
--------------------------------------

    Assignee: Kavinder Dhaliwal  (was: Goden Yao)

> 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: Kavinder Dhaliwal
>
> {code}
> add_projection_desc_httpheader
> {code}
> 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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