code: private int[] readColumnList(Table table, boolean ascOrDesc) {
  
          OrderedHashSet set = readColumnNames(ascOrDesc);
  
          return table.getColumnIndexes(set);
      }
docs: Process a bracketed column list as used in the declaration of SQL
  CONSTRAINTS and return an array containing the indexes of the columns
  within the table.
  
  @param table table that contains the columns
  @param ascOrDesc boolean
  @return array of column indexes