cloud-fan commented on code in PR #52578:
URL: https://github.com/apache/spark/pull/52578#discussion_r2426134804


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sql/core/src/main/scala/org/apache/spark/sql/execution/datasources/PushVariantIntoScan.scala:
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@@ -26,9 +26,12 @@ import 
org.apache.spark.sql.catalyst.planning.PhysicalOperation
 import org.apache.spark.sql.catalyst.plans.logical.{Filter, LogicalPlan, 
Project, Subquery}
 import org.apache.spark.sql.catalyst.rules.Rule
 import org.apache.spark.sql.catalyst.util.ResolveDefaultColumns
+import org.apache.spark.sql.connector.read.{SupportsPushDownVariants, 
VariantAccessInfo}
 import org.apache.spark.sql.errors.QueryExecutionErrors
 import org.apache.spark.sql.execution.datasources.parquet.ParquetFileFormat
-import org.apache.spark.sql.execution.datasources.v2.DataSourceV2Relation
+// BEGIN-V2-SUPPORT: DataSource V2 imports

Review Comment:
   what does this special comment marker mean?



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