Goden Yao created HAWQ-436:
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             Summary: Support text partition filter pushdown
                 Key: HAWQ-436
                 URL: https://issues.apache.org/jira/browse/HAWQ-436
             Project: Apache HAWQ
          Issue Type: Sub-task
          Components: PXF
            Reporter: Goden Yao
            Assignee: Goden Yao


1. The root directory that will be defined as the table’s path in CREATE 
EXTERNAL TABLE DDL
2. A template will be of the form to reflect the partition directory structure 
and the table will have additional fields that will correspond to the template.

All fields in the template must appear in the table columns
In this text partition profile, we only supports "=" filter pushdown




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