void setColumnLenInfo(int columnValueLen,
        NonSyncDataOutputBuffer colValLenBuffer,
        int columnUncompressedValueLen, int columnIndex) {
      eachColumnValueLen[columnIndex] = columnValueLen;
      eachColumnUncompressedValueLen[columnIndex] = columnUncompressedValueLen;
      allCellValLenBuffer[columnIndex] = colValLenBuffer;
    }
add in a new column's meta data.

@param columnValueLen
         this total bytes number of this column's values in this split
@param colValLenBuffer
         each cell's length of this column's in this split
ql/src/java/org/apache/hadoop/hive/ql/io/RCFile.java