Github user sameeragarwal commented on a diff in the pull request:
https://github.com/apache/spark/pull/11894#discussion_r57088641
--- Diff:
sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/expressions/mathExpressions.scala
---
@@ -748,7 +748,7 @@ case class Round(child: Expression, scale: Expression)
if (f.isNaN || f.isInfinite) {
f
} else {
- BigDecimal(f).setScale(_scale, HALF_UP).toFloat
+ BigDecimal(f.toDouble).setScale(_scale, HALF_UP).toFloat
--- End diff --
might be nice to use `.toString` here:
```scala
scala> System.out.println(BigDecimal(1.745f.toDouble))
1.7450000047683716
scala> System.out.println(BigDecimal(1.745f.toString))
1.745
```
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