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https://issues.apache.org/jira/browse/HAWQ-927?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15378574#comment-15378574
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ASF GitHub Bot commented on HAWQ-927:
-------------------------------------
GitHub user kavinderd opened a pull request:
https://github.com/apache/incubator-hawq/pull/796
HAWQ-927. Pass ProjectionInfo data to PXF
This commit makes the necessary modifications to the HAWQ side of
the codebase to add a list of indices of projected columns
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/kavinderd/incubator-hawq HAWQ-927
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/incubator-hawq/pull/796.patch
To close this pull request, make a commit to your master/trunk branch
with (at least) the following in the commit message:
This closes #796
----
commit 68c6dd7ea6487b8362627fd0a4aa8c25a355abd3
Author: Kavinder Dhaliwal <[email protected]>
Date: 2016-07-12T01:20:16Z
HAWQ-927. Pass ProjectionInfo data to PXF
This commit makes the necessary modifications to the HAWQ side of
the codebase to add a list of indices of projected columns
----
> 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
> 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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