-
Notifications
You must be signed in to change notification settings - Fork 28k
Commit
This commit does not belong to any branch on this repository, and may belong to a fork outside of the repository.
[SPARK-17348][SQL] Incorrect results from subquery transformation
## What changes were proposed in this pull request? Return an Analysis exception when there is a correlated non-equality predicate in a subquery and the correlated column from the outer reference is not from the immediate parent operator of the subquery. This PR prevents incorrect results from subquery transformation in such case. Test cases, both positive and negative tests, are added. ## How was this patch tested? sql/test, catalyst/test, hive/test, and scenarios that will produce incorrect results without this PR and product correct results when subquery transformation does happen. Author: Nattavut Sutyanyong <nsy.can@gmail.com> Closes #15763 from nsyca/spark-17348.
- Loading branch information
1 parent
7593445
commit bd85603
Showing
3 changed files
with
137 additions
and
9 deletions.
There are no files selected for viewing
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters