cloud-fan commented on code in PR #36698:
URL: https://github.com/apache/spark/pull/36698#discussion_r885417861


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sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/expressions/arithmetic.scala:
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@@ -490,10 +621,26 @@ trait DivModLike extends BinaryArithmetic {
       s"${eval2.value} == 0"
     }
     val javaType = CodeGenerator.javaType(dataType)
-    val operation = if (operandsDataType.isInstanceOf[DecimalType]) {
-      
decimalToDataTypeCodeGen(s"${eval1.value}.$decimalMethod(${eval2.value})")
+    val checkOverflow = if (operandsDataType.isInstanceOf[DecimalType]) {
+      val decimal = super.dataType.asInstanceOf[DecimalType]
+      val errorContextCode = if (nullOnOverflow) {

Review Comment:
   We can move this outside of the `if-else`, so that we can remove 
https://github.com/apache/spark/pull/36698/files?file-filters%5B%5D=.scala&show-viewed-files=true#diff-4e0c12ae8844d177eeef91dd2739e42ed819d435a2b336f068a5431be3b02652R645



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