zhengruifeng commented on pull request #33893:
URL: https://github.com/apache/spark/pull/33893#issuecomment-910234795
added test("General Skew Join: 5-table join")
```
== Physical Plan ==
AdaptiveSparkPlan (68)
+- == Final Plan ==
CollectLimit (45)
+- * HashAggregate (44)
+- AQEShuffleRead (43)
+- ShuffleQueryStage (42)
+- Exchange (41)
+- * HashAggregate (40)
+- * Project (39)
+- * SortMergeJoin(skew=true) Inner (38)
:- * Project (22)
: +- * SortMergeJoin(skew=true) Cross (21)
: :- * Project (14)
: : +- * SortMergeJoin(skew=true) LeftOuter (13)
: : :- * Sort (6)
: : : +- AQEShuffleRead (5)
: : : +- ShuffleQueryStage (4)
: : : +- Exchange (3)
: : : +- * Project (2)
: : : +- * Range (1)
: : +- * Sort (12)
: : +- AQEShuffleRead (11)
: : +- ShuffleQueryStage (10)
: : +- Exchange (9)
: : +- * Project (8)
: : +- * Range (7)
: +- * Sort (20)
: +- AQEShuffleRead (19)
: +- ShuffleQueryStage (18)
: +- Exchange (17)
: +- * Project (16)
: +- * Range (15)
+- * Sort (37)
+- * Project (36)
+- * ShuffledHashJoin(skew=true) Inner
BuildLeft (35)
:- * HashAggregate(skew=true) (29)
: +- AQEShuffleRead (28)
: +- ShuffleQueryStage (27)
: +- Exchange (26)
: +- * HashAggregate (25)
: +- * Project (24)
: +- * Range (23)
+- AQEShuffleRead (34)
+- ShuffleQueryStage (33)
+- Exchange (32)
+- * Project (31)
+- * Range (30)
```
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