[jira] [Commented] (FLINK-15958) Fully support RAW types in the API

["Timo Walther (Jira)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/FLINK-15958?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17055894#comment-17055894 ] 

Timo Walther commented on FLINK-15958:
--------------------------------------

As can be seen in the pull request, the direct API changes are minimal. I updated the JIRA issue description accordingly.

> Fully support RAW types in the API
> ----------------------------------
>
>                 Key: FLINK-15958
>                 URL: https://issues.apache.org/jira/browse/FLINK-15958
>             Project: Flink
>          Issue Type: Sub-task
>          Components: Table SQL / API, Table SQL / Planner
>            Reporter: Timo Walther
>            Assignee: Timo Walther
>            Priority: Major
>              Labels: pull-request-available
>          Time Spent: 10m
>  Remaining Estimate: 0h
>
> Currently, the Table API does not expose a way of creating RAW types without a {{DataTypeFactory}}. The reason for that is that RAW types need to be resolved at a later stage. This is similar to user-defined types that need to be resolved from the catalog.
> API changes:
> - Introduction of {{AbstractDataType}} as the highest type of resolved and unresolved data types
> - Introduction of {{DataTypes.of()}} for classes and names and {{DataTypes.RAW(Class)}} for unresolved types
> - Helper classes and methods for constructing unresolved types type-safe
> We also need better support in the Blink planner for that.



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