[jira] [Updated] (FLINK-15537) Type of keys should be `BinaryRow` when manipulating map state with `BaseRow` as key type.

["Jark Wu (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/FLINK-15537?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Jark Wu updated FLINK-15537:
----------------------------
    Fix Version/s:     (was: 1.11.0)
                   1.10.0

> Type of keys should be `BinaryRow` when manipulating map state with `BaseRow` as key type.
> ------------------------------------------------------------------------------------------
>
>                 Key: FLINK-15537
>                 URL: https://issues.apache.org/jira/browse/FLINK-15537
>             Project: Flink
>          Issue Type: Bug
>          Components: Table SQL / Planner
>    Affects Versions: 1.9.1
>            Reporter: Shuo Cheng
>            Assignee: Shuo Cheng
>            Priority: Major
>             Fix For: 1.10.0
>
>
> `BaseRow` is serialized and deserialized as `BinaryRow` by default, so when the key type of the map state is `BaseRow`, we should construct map keys with `BinaryRow` as type to get value from map state, otherwise, you would  always get Null...
> Try it with following SQL:
> {code:java}
> // (b: Int, c: String)
> SELECT 
>       b, listagg(DISTINCT c, '#')
> FROM MyTable
> GROUP BY b
> {code}
>  



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