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https://issues.apache.org/jira/browse/FLINK-22940?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Jark Wu closed FLINK-22940.
---------------------------
Fix Version/s: 1.14.0
Resolution: Fixed
Fixed in master: 84e1186d24ebbe6b3a4629496274d6337b333af1
> Make SQL client column max width configurable
> ---------------------------------------------
>
> Key: FLINK-22940
> URL: https://issues.apache.org/jira/browse/FLINK-22940
> Project: Flink
> Issue Type: Improvement
> Components: Table SQL / Client
> Affects Versions: 1.13.0
> Reporter: Svend Vanderveken
> Assignee: Svend Vanderveken
> Priority: Minor
> Labels: pull-request-available
> Fix For: 1.14.0
>
>
> When displaying results interactively with the Flink SQL client, each column
> is currently truncated based on its content type, up to a maximum of 30
> characters, which is controlled by the java constant [1].
> In case some result to be displayed is too wide, a ~ is appended a the end
> to indicate the truncation (actually happening in practice at position 25),
> as visible below:
>
>
> {code:java}
> SELECT
> metadata.true_as_of_timestamp_millis,
> member_user_id
> FROM some_table
>
> true_as_of_timestamp_mil~ member_user_id
> 1622811665919 45ca821f-c0fc-4114-bef8-~
> 1622811665919 45ca821f-c0fc-4114-bef8-~
> 1622118951005 b4734391-d3e1-417c-ad92-~
> {code}
>
> I suggest to make this max width configurable, by adding a parameter that can
> be `SET` to [2].
>
> I also suggest to make the default width wide enough s.t. 36 usable
> characters can be displayed, since UUID (which are 36 character longs when
> represented in text) are very
> commonly used as identifiers, and therefore as column values.
> This seems like a easy code update, if it's useful I'm happy to work on the
> implementation.
> [1]
> [https://github.com/apache/flink/blob/6d8c02f90a5a3054015f2f1ee83be821d925ccd1/flink-table/flink-table-common/src/main/java/org/apache/flink/table/utils/PrintUtils.java#L74]
> [2]
> [https://github.com/apache/flink/blob/master/flink-table/flink-sql-client/src/main/java/org/apache/flink/table/client/config/SqlClientOptions.java]
>
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