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https://issues.apache.org/jira/browse/SPARK-20690?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Wenchen Fan resolved SPARK-20690.
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Resolution: Fixed
Assignee: Liang-Chi Hsieh
Fix Version/s: 2.3.0
> Analyzer shouldn't add missing attributes through subquery
> ----------------------------------------------------------
>
> Key: SPARK-20690
> URL: https://issues.apache.org/jira/browse/SPARK-20690
> Project: Spark
> Issue Type: Bug
> Components: SQL
> Affects Versions: 2.2.0
> Reporter: Liang-Chi Hsieh
> Assignee: Liang-Chi Hsieh
> Labels: release-notes
> Fix For: 2.3.0
>
>
> We add missing attributes into Filter in Analyzer. But we shouldn't do it
> through subqueries like this:
> {code}
> select 1 from (select 1 from onerow t1 LIMIT 1) where t1.c1=1
> {code}
> This query works in current codebase. However, the outside where clause
> shouldn't be able to refer t1.c1 attribute.
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