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From "Alexander Denissov (JIRA)" <j...@apache.org>
Subject [jira] [Assigned] (HAWQ-1605) Support INSERT in PXF JDBC plugin
Date Fri, 07 Sep 2018 20:34:00 GMT

     [ https://issues.apache.org/jira/browse/HAWQ-1605?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Alexander Denissov reassigned HAWQ-1605:
----------------------------------------

    Assignee: Alexander Denissov  (was: Ed Espino)

> Support INSERT in PXF JDBC plugin
> ---------------------------------
>
>                 Key: HAWQ-1605
>                 URL: https://issues.apache.org/jira/browse/HAWQ-1605
>             Project: Apache HAWQ
>          Issue Type: Improvement
>          Components: PXF
>            Reporter: Ivan Leskin
>            Assignee: Alexander Denissov
>            Priority: Major
>             Fix For: 2.5.0.0
>
>
> Add support of INSERT queries in PXF JDBC plugin:
>  * Implement `WriteAccessor` and `WriteResolver` interfaces. Both are implemented in
the same classes as `ReadAccessor` and `ReadResolver`;
>  * Support query batching in Accessor. The size of a batch is defined by user and may
be "infinite";
>  * In Accessor, use `java.sql.PreparedStatement` and built-in functions in it to process
queries;
>  * In `setFields()` method of Resolver, perform type conversions of the data tuples
received from PXF.
> Optimize and refactor the code in PXF JDBC plugin, make some fixes:
>  * Make functions for building WHERE statements static where possible to reduce the number
of InputData checks;
>  * Organize imports;
>  * Check the codestyle;
>  * Fix the handling of TIMESTAMP values when performing SELECT requests.
> Improve documentation:
>  * Correct or rewrite Javadoc strings for plugin functions;
>  * Rewrite README.md.



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