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https://issues.apache.org/jira/browse/HIVE-11282?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14659205#comment-14659205
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Pengcheng Xiong commented on HIVE-11282:
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Hi [~jcamachorodriguez] and [~ashutoshc], it seems that now we still have other
problems after this patch (see HIVE-11436). Shall we just use String for both
char and varchar? Thanks.
> CBO (Calcite Return Path): Inferring Hive type char/varchar of length zero
> which is not allowed
> -----------------------------------------------------------------------------------------------
>
> Key: HIVE-11282
> URL: https://issues.apache.org/jira/browse/HIVE-11282
> Project: Hive
> Issue Type: Sub-task
> Components: CBO
> Reporter: Jesus Camacho Rodriguez
> Assignee: Jesus Camacho Rodriguez
> Fix For: 2.0.0
>
> Attachments: HIVE-11282.patch
>
>
> When RT is on, we try to infer the Hive type from the Calcite type for the
> value '’ e.g. in udf3.q, and we end up with char (length=0) as a result. The
> min length of char/varchar in Hive is 1, thus an Exception is thrown.
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