Kernel Force created SPARK-43753:
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Summary: Incorrect result of MINUS in spark sql.
Key: SPARK-43753
URL: https://issues.apache.org/jira/browse/SPARK-43753
Project: Spark
Issue Type: Bug
Components: SQL
Affects Versions: 3.1.3, 3.0.3, 2.4.8
Reporter: Kernel Force
sql("""
with va as (
select '123' id, 'a' name
union all
select '123' id, 'b' name
)
select '123' id, 'a' name from va t where t.name = 'a'
minus
select '123' id, 'a' name from va s where s.name = 'b'
""").show
+---+----+
| id|name|
+---+----+
|123| a|
+---+----+
which is expected to be empty result set.
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