SusurHe commented on issue #5487:
URL: https://github.com/apache/iceberg/issues/5487#issuecomment-1214560889
@kbendick Just a basic SQL statement, like:
``` sql
MERGE INTO t1 a
USING (select * from t2) b
ON a.id = b.id
WHEN MATCHED THEN UPDATE SET *
WHEN NOT MATCHED THEN INSERT * ;
```
I think it should be because this code in
`extendeddistributionandorderingutils` leads to get `initialpartitionnum` for
partitioning; So, we should crop `finalnumpartitions` here;
``` scala
val finalNumPartitions = if (numPartitions > 0) {
numPartitions
} else {
// This line of code may lead to the direct acquisition of
initialpartitionnum, resulting in too many partitions
conf.numShufflePartitions
}
```
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