alamb commented on code in PR #14220:
URL: https://github.com/apache/datafusion/pull/14220#discussion_r1926047838
##########
datafusion/expr-common/src/columnar_value.rs:
##########
@@ -218,6 +220,28 @@ impl ColumnarValue {
}
}
+// Implement Display trait for ColumnarValue
+//
+// # Panics
Review Comment:
In general I think it would be surprising of a Display impl `panic`d.
Instead in this case perhaps we can convert the errors to a string
One way to do that is instead of
```rust
pretty_format_columns("ColumnarValue(ArrayRef)", &[Arc::clone(array)])
.unwrap()
```
You can fallback on error like this:
```rust
if let Ok(formatted) =
pretty_format_columns("ColumnarValue(ArrayRef)", &[Arc::clone(array)]) {
write!(f, "{}", formatted)
} else {
write!(f, "Error formatting columnar value")
}
```
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