public void setLong(int columnIndex, long value) {
bufferSlice.setLong(getOffset(columnIndex), value);
clearNull(columnIndex);
}
public void setTimestamp(int columnIndex, Timestamp value) {
int offset = getOffset(columnIndex);
bufferSlice.setLong(offset, value.getEpochSecond());
bufferSlice.setInt(offset + 8, value.getNano());
clearNull(columnIndex);
}