[jira] [Commented] (FLINK-15584) Give nested data type of ROWs in ValidationException

["Jingsong Lee (Jira)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/FLINK-15584?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17015059#comment-17015059 ] 

Jingsong Lee commented on FLINK-15584:
--------------------------------------

Thanks [~BenoitParis] for investigation. FLINK-15546 is a similar problem. Looks like a lot of places need consider print type instead of TypeRoot.

> Give nested data type of ROWs in ValidationException
> ----------------------------------------------------
>
>                 Key: FLINK-15584
>                 URL: https://issues.apache.org/jira/browse/FLINK-15584
>             Project: Flink
>          Issue Type: Improvement
>    Affects Versions: 1.9.1, 1.10.0, 1.11.0
>            Reporter: Benoît Paris
>            Priority: Minor
>
> In 
> {code:java}
> INSERT INTO baz_sink
> SELECT
>   a,
>   ROW(b, c)
> FROM foo_source{code}
> Schema mismatch mistakes will not get proper detail level, yielding the following:
> Caused by: org.apache.flink.table.api.ValidationException: Field types of query result and registered TableSink [baz_sink] do not match.
>  Query result schema: [a: Integer, EXPR$2: Row]
>  TableSink schema: [a: Integer, payload: Row]
> Leaving the user with an opaque 'Row' type to debug.
>  



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