cj-zhukov commented on code in PR #21021:
URL: https://github.com/apache/datafusion/pull/21021#discussion_r2959621558
##########
datafusion/core/tests/dataframe/mod.rs:
##########
@@ -6854,3 +6854,26 @@ async fn
test_duplicate_state_fields_for_dfschema_construct() -> Result<()> {
Ok(())
}
+
+#[tokio::test]
+async fn test_dataframe_api_aggregate_fn_in_select() -> Result<()> {
+ let df = test_table().await?;
+
+ let res = df.select(vec![
+ count(col("c9")).alias("count_c9"),
+ count(cast(col("c9"), DataType::Utf8View)).alias("count_c9_str"),
+ ])?;
+
+ assert_batches_eq!(
+ &[
+ "+----------+--------------+",
+ "| count_c9 | count_c9_str |",
+ "+----------+--------------+",
+ "| 100 | 100 |",
+ "+----------+--------------+",
+ ],
+ &res.collect().await?
+ );
+
+ Ok(())
+}
Review Comment:
I agree - let's add more tests
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