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https://issues.apache.org/jira/browse/FLINK-23019?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17399615#comment-17399615
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Ingo Bürk commented on FLINK-23019:
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I find this particularly cumbersome with the default catalog, because the
default database (by default) is called "default", which needs to be escaped.
> Avoid errors when identifiers use reserved keywords
> ---------------------------------------------------
>
> Key: FLINK-23019
> URL: https://issues.apache.org/jira/browse/FLINK-23019
> Project: Flink
> Issue Type: Improvement
> Components: Table SQL / API
> Reporter: Timo Walther
> Priority: Major
>
> We add more and more keywords and built-in functions with special meaning to
> SQL. However, this could be quite annoying for users that have columns named
> like a keyword. E.g. {{timestamp}} or {{current_timestamp}}.
> We should investigate if we can do better and avoid forcing escaping with
> backticks. IIRC Calcite also offers functionalities for that.
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