alamb commented on code in PR #5307:
URL: https://github.com/apache/arrow-datafusion/pull/5307#discussion_r1108738294
##########
datafusion/core/src/dataframe.rs:
##########
@@ -1092,24 +1092,15 @@ mod tests {
#[tokio::test]
async fn test_distinct_sort_by() -> Result<()> {
let t = test_table().await?;
- let plan = t
+ let err = t
.select(vec![col("c1")])
.unwrap()
.distinct()
.unwrap()
+ // try to sort on some value not present in input to distinct
.sort(vec![col("c2").sort(true, true)])
Review Comment:
This is a newly added test in
https://github.com/apache/arrow-datafusion/pull/5258
I think the answer is wrong in this case - in particular you can see there
are duplicate values of `c1` produced.
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