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https://issues.apache.org/jira/browse/FLINK-9696?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16529266#comment-16529266
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ASF GitHub Bot commented on FLINK-9696:
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Github user snuyanzin commented on the issue:
https://github.com/apache/flink/pull/6233
Hello @hequn8128! Thank you for your review and comments.
About PR template - I did changes based on proposed #5811. Please let me
know if it is acceptable or not.
About `rowToString` agree. I think it makes sense and I added such tests.
However I faced with some strange behavior (I do not know if it is bug or
whatever else). Commented on the code about that.
> Deep toString for arrays/map in SQL client
> -------------------------------------------
>
> Key: FLINK-9696
> URL: https://issues.apache.org/jira/browse/FLINK-9696
> Project: Flink
> Issue Type: Bug
> Components: Table API & SQL
> Reporter: Sergey Nuyanzin
> Assignee: Sergey Nuyanzin
> Priority: Major
> Labels: pull-request-available
>
> Currently SQL client does not show arrays/map in human readable way (please
> have a look at examples below). e.g. {code}select map[1,2];{code} is shown as
> {noformat} +/- EXPR$0
> + java.util.HashMap
> {noformat}
> {code}select array[1,2];{code} is shown as {noformat}
> +/- EXPR$0
> + java.lang.Integer[]
> {noformat}
> {code}select array[map[1,2],map[2,2]];{code} is shown as {noformat} +/-
> EXPR$0
> + java.util.Map[]{noformat}
> {code}select map[array[1,2], array[1,2]];{code} is shown as {noformat} +/-
> EXPR$0
> + java.util.HashMap{noformat}
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