Examples with SortCol org.apache.hadoop.hive.ql.optimizer.physical.BucketingSortingCtx.SortCol used on opensource projects

Example 6 with SortCol

use of org.apache.hadoop.hive.ql.optimizer.physical.BucketingSortingCtx.SortCol in project hive by apache.

the class BucketingSortingOpProcFactory method getNewSortCols.

/**
   * This is used to construct new lists of sorted columns where the order of the columns
   * hasn't changed, only possibly the name
   * @param bucketCols - input sorted columns
   * @param colInfos - List of column infos
   * @return output sorted columns
   */
private static List<SortCol> getNewSortCols(List<SortCol> sortCols, List<ColumnInfo> colInfos) {
    List<SortCol> newSortCols = new ArrayList<SortCol>(sortCols.size());
    for (int i = 0; i < sortCols.size(); i++) {
        SortCol sortCol = new SortCol(sortCols.get(i).getSortOrder());
        for (Integer index : sortCols.get(i).getIndexes()) {
            // The only time this condition should be false is in the case of dynamic partitioning
            if (index < colInfos.size()) {
                sortCol.addAlias(colInfos.get(index).getInternalName(), index);
            } else {
                return null;
            }
        }
        newSortCols.add(sortCol);
    }
    return newSortCols;
}