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Chesnay Schepler commented on FLINK-3445:
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I've create a branch where the InputFormat implement ResultTypeQueryable here:
https://github.com/zentol/flink/tree/3445_jdbc
could you try if this works for you? (it does work for the example)
Regarding your other concerns, like column names and the tuple size limitation.
We could create separate JDBC formats that work with POJOs, but then you would
of course have to provide POJO classes (read: would have to write more code).
> 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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