zhengruifeng commented on pull request #31090:
URL: https://github.com/apache/spark/pull/31090#issuecomment-760125006
current impl doesn't save one tree per partition, do you mean changing
`sql.createDataFrame(nodeDataRDD).write.parquet(dataPath)` to
`sql.createDataFrame(nodeDataRDD).write.partitionBy("treeID").parquet(dataPath)`?
@srowen
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