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Posted to issues@spark.apache.org by "Apache Spark (JIRA)" <ji...@apache.org> on 2017/11/01 20:52:00 UTC
[jira] [Assigned] (SPARK-22413) Type coercion for IN is not
coherent between Literals and subquery
[ https://issues.apache.org/jira/browse/SPARK-22413?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Apache Spark reassigned SPARK-22413:
------------------------------------
Assignee: Apache Spark
> Type coercion for IN is not coherent between Literals and subquery
> ------------------------------------------------------------------
>
> Key: SPARK-22413
> URL: https://issues.apache.org/jira/browse/SPARK-22413
> Project: Spark
> Issue Type: Bug
> Components: SQL
> Affects Versions: 2.3.0
> Reporter: Marco Gaido
> Assignee: Apache Spark
> Priority: Major
>
> The IN statement can have a different behavior according to whether there is a list of literals or a subquery, because the type coercion works differently in the two cases.
> This means, that these two equivalent queries return different results:
> {code}
> select 1 from (select 1) a where 1 in ('01'); // this returns an empty dataset
> select 1 from (select 1) a where 1 in (select '01' from (select 1)); // returns 1 row
> {code}
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