zhuml created SPARK-39887:
-----------------------------
Summary: Expression transform error
Key: SPARK-39887
URL: https://issues.apache.org/jira/browse/SPARK-39887
Project: Spark
Issue Type: Bug
Components: Optimizer
Affects Versions: 3.2.2, 3.3.0, 3.2.1
Reporter: zhuml
{code:java}
spark.sql(
"""
|select to_date(a) a, to_date(b) b from
|(select a, a as b from
|(select to_date(a) a from
| values ('2020-02-01') as t1(a)
| group by to_date(a)) t3
|union all
|select a, b from
|(select to_date(a) a, to_date(b) b from
|values ('2020-01-01','2020-01-02') as t1(a, b)
| group by to_date(a), to_date(b)) t4) t5
|group by to_date(a), to_date(b)
|""".stripMargin).show(){code}
result is (2020-02-01, 2020-02-01), (2020-01-01, 2020-01-01)
expected (2020-02-01, 2020-02-01), (2020-01-01, 2020-01-02)
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