liukun4515 commented on code in PR #2650:
URL: https://github.com/apache/arrow-rs/pull/2650#discussion_r963808315
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arrow/src/compute/kernels/arity.rs:
##########
@@ -83,6 +84,41 @@ where
PrimitiveArray::<O>::from(data)
}
+/// A overflow-checking variant of `unary`.
+pub(crate) fn unary_checked<I, F, O>(
+ array: &PrimitiveArray<I>,
+ op: F,
+) -> Result<PrimitiveArray<O>>
+where
+ I: ArrowPrimitiveType,
+ O: ArrowPrimitiveType,
+ F: Fn(I::Native) -> Option<O::Native>,
+ I::Native: ArrowNativeTypeOp,
+{
+ let values = array.values().iter().map(|v| {
Review Comment:
I think the default bytes or '0' will be inserted into the null slot.
The default value or '0' may cause fail
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