public void setOpToSamplePruner(
      Map<TableScanOperator, SampleDesc> opToSamplePruner) {
    this.opToSamplePruner = opToSamplePruner;
  }
@param opToSamplePruner
         the opToSamplePruner to set
ql/src/java/org/apache/hadoop/hive/ql/parse/ParseContext.java