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https://issues.apache.org/jira/browse/HIVE-23130?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Krisztian Kasa updated HIVE-23130:
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Attachment: HIVE-23130.2.patch
> User friendly error message when MV rewriting fails
> ---------------------------------------------------
>
> Key: HIVE-23130
> URL: https://issues.apache.org/jira/browse/HIVE-23130
> Project: Hive
> Issue Type: Task
> Components: CBO
> Reporter: Krisztian Kasa
> Assignee: Krisztian Kasa
> Priority: Minor
> Attachments: HIVE-23130.1.patch, HIVE-23130.1.patch,
> HIVE-23130.2.patch
>
>
> If materialized view rewriting fails because an unsupported SQL clause or
> operator is used we got an error message like this:
> {code}
> FAILED: SemanticException Cannot enable automatic rewriting for materialized
> view. Unsupported RelNode type HiveSortExchange encountered in the query plan
> {code}
> This refers to the *HiveSortExchange* operator. This is introduced to CBO
> plan if the statement has *sort by* clause which may not clear for the user.
> {code}
> create materialized view cmv_mat_view as select a, b, c from cmv_basetable
> sort by a;
> {code}
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