// well, unless it is later than the range tombstone in which
// case the column is out of date anyway
} else if (currentColumn == null) {
currentColumn = column;
} else if (currentColumn.name().equals(column.name())) {
if (column.timestamp() > currentColumn.minTimestamp()) {
currentColumn = column;
}
} else {
columns.add(currentColumn);
currentColumn = column;