AngersZhuuuu opened a new pull request, #45398:
URL: https://github.com/apache/spark/pull/45398
### What changes were proposed in this pull request?
Current OptimizeSkewInRebalanceRepartitions only support match case
ShuffleQueryStageExec
```
plan transformUp {
case stage: ShuffleQueryStageExec if isSupported(stage.shuffle) =>
tryOptimizeSkewedPartitions(stage)
}
```
This only can work when we write a query with rebalance hint
```
SELECT /*+ REBALANCE(col) */ * FROM table
```
This won't work when we are writing to a table
```
INSERT INTO t1
SELECT /*+ REBALANCE(key1) */
*
FROM skewData1
```
This pr support this.
### Why are the changes needed?
Support more case since this can avoid skew when we are writing to a table
with `REBALANCE` hint
### Does this PR introduce _any_ user-facing change?
No
### How was this patch tested?
MT
### Was this patch authored or co-authored using generative AI tooling?
Before
After
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