alamb commented on code in PR #10899:
URL: https://github.com/apache/datafusion/pull/10899#discussion_r1638227038
##########
datafusion/functions/src/math/round.rs:
##########
@@ -109,6 +109,9 @@ pub fn round(args: &[ArrayRef]) -> Result<ArrayRef> {
if args.len() == 2 {
decimal_places = ColumnarValue::Array(args[1].clone());
+ // if cast fails, we return error instead of panic. Better solution
would to update
+ // function signature and instead error during planning -- to be
improved later
+ _ = decimal_places.cast_to(&Int32, None)?;
Review Comment:
I think you could potentially just check the result of the conversion below
too
So instead of the following on line 120:
```rust
let decimal_places = decimal_places.try_into().unwrap();
```
something like this?
```rust
let decimal_places: i32 = decimal_places.try_into()
.map_err(|e| exec_datafusion_err!("Invalid value for
decimal places: {decimal_places}: {e}"))?;
```
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