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https://issues.apache.org/jira/browse/CALCITE-555?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Hongze Zhang closed CALCITE-555.
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The issue was resolved but not closed in the given fix version. Closing now.
> Differentiate between column not found and ambiguous column exceptions
> ----------------------------------------------------------------------
>
> Key: CALCITE-555
> URL: https://issues.apache.org/jira/browse/CALCITE-555
> Project: Calcite
> Issue Type: Sub-task
> Reporter: James Taylor
> Assignee: Julian Hyde
> Priority: Minor
> Labels: phoenix
> Fix For: 1.9.0
>
>
> With CALCITE-497, fields within record groups may be referenced through their
> field names if they're unique. However, there's currently no differentiation
> between a field/column not being found and a field name being ambiguous. This
> will likely confuse users, so if possible, these two error conditions should
> be differentiated.
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