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Posted to github@arrow.apache.org by GitBox <gi...@apache.org> on 2022/05/04 01:23:11 UTC

[GitHub] [arrow-datafusion] alamb commented on a diff in pull request #2416: Fix bug in subquery join filters referencing outer query

alamb commented on code in PR #2416:
URL: https://github.com/apache/arrow-datafusion/pull/2416#discussion_r864403892


##########
datafusion/core/src/sql/planner.rs:
##########
@@ -4523,6 +4562,35 @@ mod tests {
         quick_test(sql, &expected);
     }
 
+    #[test]
+    fn scalar_subquery_reference_outer_field() {
+        let sql = "SELECT j1_string, j2_string \
+        FROM j1, j2 \
+        WHERE j1_id = j2_id - 1 \
+        AND j2_id < (SELECT count(*) \

Review Comment:
   Oh so tricky 👍 



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