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https://issues.apache.org/jira/browse/FLINK-11221?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17323407#comment-17323407
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Flink Jira Bot commented on FLINK-11221:
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This issue is assigned but has not received an update in 7 days so it has been
labeled "stale-assigned". If you are still working on the issue, please give an
update and remove the label. If you are no longer working on the issue, please
unassign so someone else may work on it. In 7 days the issue will be
automatically unassigned.
> Support delimited identifiers in TableAPI
> -----------------------------------------
>
> Key: FLINK-11221
> URL: https://issues.apache.org/jira/browse/FLINK-11221
> Project: Flink
> Issue Type: Improvement
> Components: Table SQL / API
> Reporter: Hequn Cheng
> Assignee: Hequn Cheng
> Priority: Major
> Labels: stale-assigned
>
> There are two kinds of identifiers in SQL: regular identifiers and delimited
> identifiers. Different from regular identifiers, delimited identifiers are
> identifiers enclosed in double backticks(``), double quotation marks (") or
> brackets ([ ]).
> Currently, delimited identifiers in double backticks have been supported in
> Flink SQL(thanks to Calcite). In Calcite, delimited identifiers may contain
> virtually any character, including spaces and other punctuation. With
> delimited identifiers, we can name some special identifiers such as `a-a`
> which may be an essential requirement.
> However, delimited identifiers are not supported in TableApi. It would be
> nice if we support it in TableApi.
> Any suggestions are welcomed! Thank you.
>
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