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https://issues.apache.org/jira/browse/SPARK-29860?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Wenchen Fan reassigned SPARK-29860:
-----------------------------------
Assignee: feiwang
> [SQL] Fix data type mismatch issue for inSubQuery
> -------------------------------------------------
>
> Key: SPARK-29860
> URL: https://issues.apache.org/jira/browse/SPARK-29860
> Project: Spark
> Issue Type: Improvement
> Components: SQL
> Affects Versions: 2.4.4
> Reporter: feiwang
> Assignee: feiwang
> Priority: Major
>
> The follow statement would throw an exception.
> {code:java}
> sql("create table ta(id Decimal(18,0)) using parquet")
> sql("create table tb(id Decimal(19,0)) using parquet")
> sql("select * from ta where id in (select id from tb)").shown()
> {code}
> {code:java}
> // Exception information
> cannot resolve '(default.ta.`id` IN (listquery()))' due to data type
> mismatch:
> The data type of one or more elements in the left hand side of an IN subquery
> is not compatible with the data type of the output of the subquery
> Mismatched columns:
> [(default.ta.`id`:decimal(18,0), default.tb.`id`:decimal(19,0))]
> Left side:
> [decimal(18,0)].
> Right side:
> [decimal(19,0)].;;
> 'Project [*]
> +- 'Filter id#219 IN (list#218 [])
> : +- Project [id#220]
> : +- SubqueryAlias `default`.`tb`
> : +- Relation[id#220] parquet
> +- SubqueryAlias `default`.`ta`
> +- Relation[id#219] parquet
> {code}
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