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https://issues.apache.org/jira/browse/FLINK-3445?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15154945#comment-15154945
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Ken Geis commented on FLINK-3445:
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To provide a little more context, I am coding in Groovy, and I am more
interested in concise code than compile-time type checking and benefits like
autocomplete in IDEs. Specifying all of the types for a query that returns 25
columns is a lot of code.
(This is a separate issue, but I am running into limits with JDBCInputFormat
being tied to Tuple which restricts it to <= 25 columns.)
> make JDBCInputFormat implement ResultTypeQueryable
> --------------------------------------------------
>
> Key: FLINK-3445
> URL: https://issues.apache.org/jira/browse/FLINK-3445
> Project: Flink
> Issue Type: Improvement
> Affects Versions: 0.10.2
> Reporter: Ken Geis
> Assignee: Chesnay Schepler
>
> A JDBC statement can be interrogated to see what columns and types it will
> return. Flink should be able to use this to make JDBCInputFormat implement
> ResultTypeQueryable to provide type information without needing to code again.
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