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https://issues.apache.org/jira/browse/CALCITE-7103?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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xiaochen.zhou closed CALCITE-7103.
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Resolution: Fixed
> Invalid unparse for named expression in HiveDialect and SparkDialect
> --------------------------------------------------------------------
>
> Key: CALCITE-7103
> URL: https://issues.apache.org/jira/browse/CALCITE-7103
> Project: Calcite
> Issue Type: Bug
> Reporter: xiaochen.zhou
> Priority: Major
> Labels: pull-request-available
> Attachments: image-2025-07-20-03-55-59-759.png,
> image-2025-07-20-03-56-55-568.png, image-2025-07-20-04-21-14-158.png
>
>
> However, currently, the Hive and Spark dialects will remove the {{AS}} during
> parsing.
> !image-2025-07-20-04-21-14-158.png|width=709,height=290!
> In Hive and Spark engines, the {{AS}} syntax is supported.
> [https://spark.apache.org/docs/latest/sql-ref-syntax-qry-select.html|http://example.com/]
> !image-2025-07-20-03-56-55-568.png!
> Therefore, i think we should set the default value of the method:
> {{!image-2025-07-20-03-55-59-759.png|width=655,height=149!}}
> to {{true}} in their respective dialects.
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