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Posted to issues@hawq.apache.org by "Shivram Mani (JIRA)" <ji...@apache.org> on 2016/07/28 18:28:20 UTC

[jira] [Issue Comment Deleted] (HAWQ-927) Send Projection Info Data from HAWQ to PXF

     [ https://issues.apache.org/jira/browse/HAWQ-927?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Shivram Mani updated HAWQ-927:
------------------------------
    Comment: was deleted

(was: {TABLE})

> Send Projection Info Data from HAWQ to PXF
> ------------------------------------------
>
>                 Key: HAWQ-927
>                 URL: https://issues.apache.org/jira/browse/HAWQ-927
>             Project: Apache HAWQ
>          Issue Type: Sub-task
>          Components: External Tables, PXF
>            Reporter: Kavinder Dhaliwal
>            Assignee: Kavinder Dhaliwal
>             Fix For: backlog
>
>
> To achieve column projection at the level of PXF or the underlying readers we need to first send this data as a Header/Param to PXF. Currently, PXF has no knowledge whether a query requires all columns or a subset of columns.



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