nevi-me commented on a change in pull request #8460:
URL: https://github.com/apache/arrow/pull/8460#discussion_r504935919
##########
File path: rust/datafusion/src/physical_plan/expressions.rs
##########
@@ -1985,9 +1982,10 @@ mod tests {
#[test]
fn invalid_cast() -> Result<()> {
- let schema = Schema::new(vec![Field::new("a", DataType::Utf8, false)]);
- let result = cast(col("a"), &schema, DataType::Int32);
- result.expect_err("Invalid CAST from Utf8 to Int32");
+ // Ensure a useful error happens at plan time if invalid casts are used
Review comment:
yup, unifying the cast logic was good for this. I've wanted to add cast
options, such as disallowing lossy casts.
If/when we get to that point, we'll have to think about what behaviour we
want DataFusion to use.
----------------------------------------------------------------
This is an automated message from the Apache Git Service.
To respond to the message, please log on to GitHub and use the
URL above to go to the specific comment.
For queries about this service, please contact Infrastructure at:
[email protected]
