Github user cloud-fan commented on a diff in the pull request: https://github.com/apache/spark/pull/14036#discussion_r70562757 --- Diff: sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/expressions/arithmetic.scala --- @@ -249,11 +241,12 @@ case class Divide(left: Expression, right: Expression) s"${eval2.value} == 0" } val javaType = ctx.javaType(dataType) - val divide = if (dataType.isInstanceOf[DecimalType]) { + val divide = if (dataType.isInstanceOf[DecimalType] || dataType.isInstanceOf[DoubleType]) { s"${eval1.value}.$decimalMethod(${eval2.value})" } else { - s"($javaType)(${eval1.value} $symbol ${eval2.value})" + s"($javaType)(${eval1.value} $decimalMethod ${eval2.value})" --- End diff -- ok I see the problem. Since `symbol` is also used in the string format of arithmetic expression, `IntegerDivide` has to override it. I think we can: 1. inline the operator in generated code, e.g. `($javaType)(${eval1.value} / ${eval2.value})` instead of `($javaType)(${eval1.value} $symbol ${eval2.value})` 2. don't override `decimalMethod` as it's useless in the 2 division expressions.
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