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https://issues.apache.org/jira/browse/HAWQ-178?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15130679#comment-15130679
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ASF GitHub Bot commented on HAWQ-178:
-------------------------------------

Github user tzolov commented on the pull request:

    https://github.com/apache/incubator-hawq/pull/302#issuecomment-179344304
  
    In the last commit(s): 
    * Added tests to cover corner cases like malformed json records or 
compressed input files. The _combined_ test coverage is > 95%. @hornn is there 
an integration tests/environment to itest PXF plugins?
    * Improved handling of malformed json records/fields. If the json record is 
not parsable the Resolver will produce a row with empty fields.  If a field in 
the record is missing then an empty db field is created.
    * Factored out the column metadata computation logic and data in a 
dedicated `ColumnDescriptorCache` class. Now the cached descriptor metadata is 
created only once inside the `JsonResolver` constructor. Previously it use to 
be re-computed on each `JsonResolver.getFields()` method call. 


> Add JSON plugin support in code base
> ------------------------------------
>
>                 Key: HAWQ-178
>                 URL: https://issues.apache.org/jira/browse/HAWQ-178
>             Project: Apache HAWQ
>          Issue Type: New Feature
>          Components: PXF
>            Reporter: Goden Yao
>            Assignee: Christian Tzolov
>             Fix For: backlog
>
>         Attachments: PXFJSONPluginforHAWQ2.0andPXF3.0.0.pdf, 
> PXFJSONPluginforHAWQ2.0andPXF3.0.0v.2.pdf, 
> PXFJSONPluginforHAWQ2.0andPXF3.0.0v.3.pdf
>
>
> JSON has been a popular format used in HDFS as well as in the community, 
> there has been a few JSON PXF plugins developed by the community and we'd 
> like to see it being incorporated into the code base as an optional package.



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