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https://issues.apache.org/jira/browse/IMPALA-4489?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Tim Armstrong resolved IMPALA-4489.
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Resolution: Won't Fix
> Remove the ident_or_default non-terminal from the parser
> --------------------------------------------------------
>
> Key: IMPALA-4489
> URL: https://issues.apache.org/jira/browse/IMPALA-4489
> Project: IMPALA
> Issue Type: New Feature
> Components: Frontend
> Affects Versions: Impala 2.8.0
> Reporter: Dimitris Tsirogiannis
> Priority: Major
> Labels: incompatibility
>
> IMPALA-3726 introduced the DEFAULT keyword. To avoid breaking applications
> that use "DEFAULT" as an identifier for databases, tables and columns, the
> non-terminal ident_or_default was introduced to replace IDENT in the parser.
> Moving forward, we should disallow the use of DEFAULT and remove
> ident_or_default. This should be a backward incompatible change.
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