cloud-fan commented on a change in pull request #27535: Add class document for
PruneFileSourcePartitions and PruneHiveTablePartitions
URL: https://github.com/apache/spark/pull/27535#discussion_r377439182
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File path:
sql/core/src/main/scala/org/apache/spark/sql/execution/datasources/PruneFileSourcePartitions.scala
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@@ -26,6 +26,18 @@ import org.apache.spark.sql.catalyst.rules.Rule
import
org.apache.spark.sql.execution.datasources.v2.{DataSourceV2ScanRelation,
FileScan}
import org.apache.spark.sql.types.StructType
+/**
+ * Prune the partitions of file source based table using partition filters.
Currently, this rule
+ * is applied to [[HadoopFsRelation]] and [[DataSourceV2ScanRelation]].
Review comment:
`DataSourceV2ScanRelation` -> `FileScan`
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