public static ColumnPrunerTableScanProc getTableScanProc() {
    return new ColumnPrunerTableScanProc();
  }
Factory method to get the ColumnPrunerDefaultProc class.

@return ColumnPrunerTableScanProc
ql/src/java/org/apache/hadoop/hive/ql/optimizer/ColumnPrunerProcFactory.java