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https://issues.apache.org/jira/browse/FLINK-13569?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16899883#comment-16899883
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Jark Wu commented on FLINK-13569:
---------------------------------
Hive and Spark also use string literal for keys. But identifier is more
concise, so I would like to go with identifier if the parser can support.
Currently, we are using CompoundIdentifier for the grammar of property key
which doesn't support {{-}}.
> DDL table property key is defined as indentifier but should be string literal
> instead
> -------------------------------------------------------------------------------------
>
> Key: FLINK-13569
> URL: https://issues.apache.org/jira/browse/FLINK-13569
> Project: Flink
> Issue Type: Bug
> Components: Table SQL / API
> Reporter: Xuefu Zhang
> Priority: Major
> Fix For: 1.9.0, 1.10.0
>
>
> The key name should be any free text, and should not be constrained by the
> identifier grammar.
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