[GitHub] [spark] cloud-fan commented on a change in pull request #26811: [SPARK-29600][SQL] ArrayContains function may return incorrect result for DecimalType

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cloud-fan commented on a change in pull request #26811: [SPARK-29600][SQL] ArrayContains function may return incorrect result for DecimalType
URL: https://github.com/apache/spark/pull/26811#discussion_r357631829
 
 

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 File path: sql/core/src/test/scala/org/apache/spark/sql/DataFrameFunctionsSuite.scala
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 @@ -850,7 +850,7 @@ class DataFrameFunctionsSuite extends QueryTest with SharedSparkSession {
     val errorMsg1 =
       s"""
          |Input to function array_contains should have been array followed by a
-         |value with same element type, but it's [array<int>, decimal(29,29)].
+         |value with same element type, but it's [array<int>, decimal(38,29)].
 
 Review comment:
   why precision becomes 38 in this case?

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