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Posted to issues@flink.apache.org by "Kurt Young (Jira)" <ji...@apache.org> on 2019/12/04 04:16:01 UTC
[jira] [Assigned] (FLINK-15038) Get field DataType of TableSchema
should return DataType with default conversion class
[ https://issues.apache.org/jira/browse/FLINK-15038?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Kurt Young reassigned FLINK-15038:
----------------------------------
Assignee: Jingsong Lee
> Get field DataType of TableSchema should return DataType with default conversion class
> --------------------------------------------------------------------------------------
>
> Key: FLINK-15038
> URL: https://issues.apache.org/jira/browse/FLINK-15038
> Project: Flink
> Issue Type: Bug
> Components: Table SQL / API
> Reporter: Jingsong Lee
> Assignee: Jingsong Lee
> Priority: Major
> Fix For: 1.10.0
>
>
> Now, the user and planner construct TableSchema with various DataTypes, them maybe have various conversion classes.
> For example, return DataType of Functions maybe with various TypeInformations and lead to various conversion classes.
> TableSchema should only have logical informations instead of various conversion classes.
> This ticket want to clean the field DataType in TableSchema and return a consistent conversion classes to users.
> Modify:
> getFieldDataTypes/getFieldDataType/toRowDataType in TableSchema.
> Before return, we can bridgeTo default conversion class using TypeConversions.fromLogicalToDataType(type.getLogicalType()).
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