@SuppressWarnings("unchecked")
    protected RES transform(Table<R, ?, Group> groups) {
        return (RES) groups;
    }
Provides aggregated results as a table

@author Jan-Willem Gmelig Meyling

@param <R> row type
@param <C> column type
@param <V> value type
@param <RES> table type
querydsl-guava/src/main/java/com/querydsl/core/group/guava/GroupByTable.java