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https://issues.apache.org/jira/browse/HIVE-11261?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14627122#comment-14627122
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Jenny Kim commented on HIVE-11261:
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Ah, I see it now, and the underlying grammar issue makes more sense now.
Thanks Xuefu!
> DESCRIBE database qualifier does not work when calling DESCRIBE on column or
> nested columns.
> --------------------------------------------------------------------------------------------
>
> Key: HIVE-11261
> URL: https://issues.apache.org/jira/browse/HIVE-11261
> Project: Hive
> Issue Type: Bug
> Components: Parser
> Reporter: Jenny Kim
> Priority: Minor
>
> When running a DESCRIBE on a column or nested column, Hive raises a
> SemanticException if a database qualifier is included:
> hive> DESCRIBE `default`.`merchants`.`products`;
> FAILED: SemanticException [Error 10004]: Invalid table alias or column
> reference default.merchants.products
> hive> DESCRIBE `default`.`merchants`.`products`.`$value$`;
> FAILED: SemanticException [Error 10001]: Table not found
> default.merchants.products.$value$
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