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https://issues.apache.org/jira/browse/SPARK-34636?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Apache Spark reassigned SPARK-34636:
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Assignee: Apache Spark (was: Kousuke Saruta)
> sql method in UnresolvedAttribute, AttributeReference and Alias don't quote
> qualified names properly.
> -----------------------------------------------------------------------------------------------------
>
> Key: SPARK-34636
> URL: https://issues.apache.org/jira/browse/SPARK-34636
> Project: Spark
> Issue Type: Bug
> Components: SQL
> Affects Versions: 3.0.2, 3.2.0, 3.1.1
> Reporter: Kousuke Saruta
> Assignee: Apache Spark
> Priority: Major
>
> UnresolvedReference, AttributeReference and Alias which take qualifier don't
> quote qualified names properly.
> One instance is reported in SPARK-34626.
> Other instances are like as follows.
> {code}
> UnresolvedAttribute("a`b"::"c.d"::Nil).sql
> a`b.`c.d` // expected: `a``b`.`c.d`
> AttributeReference("a.b", IntegerType)(qualifier = "c.d"::Nil)
> c.d.`a.b` // expected: `c.d`.`a.b`
> Alias(AttributeReference("a", IntegerType)(), "b.c")(qualifier =
> "d.e"::Nil).sql
> `a` AS d.e.`b.c` // expected: `a` AS `d.e`.`b.c`
> {code}
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