[jira] [Created] (SPARK-22413) Type coercion for IN is not coherent between Literals and subquery

["Marco Gaido (JIRA)" <ji...@apache.org>]

Marco Gaido created SPARK-22413:
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             Summary: 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
            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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