alamb commented on code in PR #17431:
URL: https://github.com/apache/datafusion/pull/17431#discussion_r2325818051
##########
datafusion/physical-plan/src/joins/sort_merge_join/exec.rs:
##########
@@ -1923,6 +1974,100 @@ mod tests {
Ok(())
}
+ #[tokio::test]
+ async fn join_binary() -> Result<()> {
+ let left = build_binary_table(
+ (
+ "a1",
+ &vec![
+ &[0xc0, 0xff, 0xee],
+ &[0xde, 0xca, 0xde],
+ &[0xfa, 0xca, 0xde],
+ ],
+ ),
+ ("b1", &vec![5, 10, 15]), // this has a repetition
+ ("c1", &vec![7, 8, 9]),
+ );
+ let right = build_binary_table(
+ (
+ "a1",
+ &vec![
+ &[0xc0, 0xff, 0xee],
+ &[0xde, 0xca, 0xde],
+ &[0xfa, 0xca, 0xde],
+ ],
+ ),
+ ("b2", &vec![105, 110, 115]),
+ ("c2", &vec![70, 80, 90]),
+ );
+
+ let on = vec![(
+ Arc::new(Column::new_with_schema("a1", &left.schema())?) as _,
+ Arc::new(Column::new_with_schema("a1", &right.schema())?) as _,
+ )];
+
+ let (_, batches) = join_collect(left, right, on, Inner).await?;
+
+ // The output order is important as SMJ preserves sortedness
+ assert_snapshot!(batches_to_string(&batches), @r#"
+ +--------+----+----+--------+-----+----+
+ | a1 | b1 | c1 | a1 | b2 | c2 |
+ +--------+----+----+--------+-----+----+
+ | c0ffee | 5 | 7 | c0ffee | 105 | 70 |
+ | decade | 10 | 8 | decade | 110 | 80 |
+ | facade | 15 | 9 | facade | 115 | 90 |
+ +--------+----+----+--------+-----+----+
+ "#);
+ Ok(())
+ }
+
+ #[tokio::test]
+ async fn join_fixed_size_binary() -> Result<()> {
Review Comment:
That would be great if you could do so
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