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https://issues.apache.org/jira/browse/FLINK-8538?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16358372#comment-16358372
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Fabian Hueske commented on FLINK-8538:
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Regarding the options:
* Option 1: This was my initial idea. But Timo is right, we would tie the
format to the Table API which is not a good choice, IMO.
* Option 2: I don't think this will work. What if a schema contains two NUMBER
types?
* Option 3: How would this help? We would have a custom number type that nobody
can properly handle.
I think the best approach to support JSON Schema would be to always return
BigDecimal types.
> Add a Kafka table source factory with JSON format support
> ---------------------------------------------------------
>
> Key: FLINK-8538
> URL: https://issues.apache.org/jira/browse/FLINK-8538
> Project: Flink
> Issue Type: Sub-task
> Components: Table API & SQL
> Reporter: Timo Walther
> Assignee: Xingcan Cui
> Priority: Major
>
> Similar to CSVTableSourceFactory a Kafka table source factory for JSON should
> be added. This issue includes improving the existing JSON descriptor with
> validation that can be used for other connectors as well. It is up for
> discussion if we want to split the KafkaJsonTableSource into connector and
> format such that we can reuse the format for other table sources as well.
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