cloud-fan commented on code in PR #38760:
URL: https://github.com/apache/spark/pull/38760#discussion_r1030003237
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sql/core/src/test/scala/org/apache/spark/sql/DataFrameSuite.scala:
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@@ -3537,6 +3537,12 @@ class DataFrameSuite extends QueryTest
}.isEmpty)
}
}
+
+ test("SPARK-41219: Decimal changePrecision should work with decimal(0, 0)") {
+ val df = Seq("0.5944910").toDF("a")
+ checkAnswer(df.selectExpr("cast(a as decimal(7,7)) div 100"), Row(0))
+ checkAnswer(df.select(lit(BigDecimal(0)) as "c").selectExpr("cast(c as
decimal(0,0))"), Row(0))
Review Comment:
hmmm, `decimal(0, 0)` is a valid decimal type? how do you use it in
production?
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