viirya commented on issue #26461: [SPARK-29831][SQL] Scan Hive partitioned table should not dramatically increase data parallelism URL: https://github.com/apache/spark/pull/26461#issuecomment-552631299 Another point is, for datasource table scan node, the parallelism can be controlled by configs `spark.default.parallelism` and `spark.sql.files.maxPartitionBytes`. But for Hive table scan node, we have nothing to control it.
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