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https://issues.apache.org/jira/browse/FLINK-30292?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Jing Ge updated FLINK-30292:
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Fix Version/s: 1.19.0
(was: 1.18.0)
> Better support for conversion between DataType and TypeInformation
> ------------------------------------------------------------------
>
> Key: FLINK-30292
> URL: https://issues.apache.org/jira/browse/FLINK-30292
> Project: Flink
> Issue Type: Improvement
> Components: Table SQL / API
> Affects Versions: 1.15.3
> Reporter: Yunfeng Zhou
> Priority: Major
> Fix For: 1.19.0
>
>
> In Flink 1.15, we have the following ways to convert a DataType to a
> TypeInformation. Each of them has some disadvantages.
> * `TypeConversions.fromDataTypeToLegacyInfo`
> It might lead to precision losses in face of some data types like timestamp.
> It has been deprecated.
> * `ExternalTypeInfo.of`
> It cannot be used to get detailed type information like `RowTypeInfo`
> It might bring some serialization overhead.
> Given that the ways mentioned above are both not perfect, Flink SQL should
> provide a better API to support DataType-TypeInformation conversions, and
> thus better support Table-DataStream conversions.
>
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