org.apache.spark.sql.sources

PrunedScan

trait PrunedScan extends AnyRef

::DeveloperApi:: A BaseRelation that can eliminate unneeded columns before producing an RDD containing all of its tuples as Row objects.

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@DeveloperApi()
Source
interfaces.scala
Since

1.3.0

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  1. abstract def buildScan(requiredColumns: Array[String]): RDD[Row]

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