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EronWright
/ gist:cb5fb9af46fd810194f8
Created
July 2, 2015 14:54
Demonstration of limitation on column pruning for transformed dataframes
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| import org.apache.spark.ml.feature.StringIndexer | |
| import org.apache.spark.{SparkConf, SparkContext} | |
| import org.apache.spark.sql.sources.{PrunedScan, BaseRelation} | |
| import scala.language.existentials | |
| import org.apache.spark.rdd.RDD | |
| import org.apache.spark.sql._ | |
| import org.apache.spark.sql.types._ |
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