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https://issues.apache.org/jira/browse/FLINK-1919?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14647727#comment-14647727
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James Cao commented on FLINK-1919:
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Thanks!
> Add HCatOutputFormat for Tuple data types
> -----------------------------------------
>
> Key: FLINK-1919
> URL: https://issues.apache.org/jira/browse/FLINK-1919
> Project: Flink
> Issue Type: New Feature
> Components: Java API, Scala API
> Reporter: Fabian Hueske
> Assignee: James Cao
> Priority: Minor
> Labels: starter
>
> It would be good to have an OutputFormat that can write data to HCatalog
> tables.
> The Hadoop `HCatOutputFormat` expects `HCatRecord` objects and writes these
> to HCatalog tables. We can do the same thing, by creating these `HCatRecord`
> object with a Map function that precedes a `HadoopOutputFormat` that wraps
> the Hadoop `HCatOutputFormat`.
> Better support for Flink Tuples can be added by implementing a custom
> `HCatOutputFormat` that also depends on the Hadoop `HCatOutputFormat` but
> internally converts Flink Tuples to `HCatRecords`. This would also include to
> check if the schema of the HCatalog table and the Flink tuples match. For
> data types other than tuples, the OutputFormat could either require a
> preceding Map function that converts to `HCatRecords` or let users specify a
> MapFunction and invoke that internally.
> We have already a Flink `HCatInputFormat` which does this in the reverse
> directions, i.e., it emits Flink Tuples from HCatalog tables.
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