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https://issues.apache.org/jira/browse/SPARK-51113?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Vladimir Golubev updated SPARK-51113:
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Attachment: screenshot-2.png
> Correctness issue when reading a view with a trivial UNION/EXCEPT/INTERSECT
> query
> ---------------------------------------------------------------------------------
>
> Key: SPARK-51113
> URL: https://issues.apache.org/jira/browse/SPARK-51113
> Project: Spark
> Issue Type: Bug
> Components: SQL
> Affects Versions: 4.0.0
> Reporter: Vladimir Golubev
> Priority: Critical
> Attachments: screenshot-1.png, screenshot-2.png, screenshot-3.png
>
>
> There's a parser issue where for trivial UNION/EXCEPT/INTERSECT queries
> inside views a keyword is considered an alias:
> ```
> spark.sql("CREATE OR REPLACE VIEW v1 AS SELECT 1 AS col1 UNION SELECT 2 UNION
> SELECT 3 UNION SELECT 4")
> spark.sql("SELECT * FROM v1").show()
> spark.sql("SELECT * FROM v1").queryExecution.analyzed
> ```
> !screenshot-1.png!
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