Dongjoon Hyun created SPARK-18603:
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Summary: Support `OuterReference` in projection list of IN
correlated subqueries
Key: SPARK-18603
URL: https://issues.apache.org/jira/browse/SPARK-18603
Project: Spark
Issue Type: Improvement
Components: SQL
Affects Versions: 2.0.2
Reporter: Dongjoon Hyun
This issue aims to allow OuterReference columns in projection lists of IN
correlated subqueries.
**EXAMPLE**
{code}
scala> sql("CREATE TEMPORARY VIEW t1 AS SELECT * FROM VALUES 1, 2 AS t1(a)")
scala> sql("CREATE TEMPORARY VIEW t2 AS SELECT * FROM VALUES 1 AS t2(b)")
scala> sql("SELECT a FROM t1 WHERE a IN (SELECT a FROM t2)").show
{code}
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