does --hbase-row-key support multiple columns?

[shengjie min]

Hi Guys,

I am importing mysql table to HBase using sqoop. Normally, HBase's row key is 
not consisted just by one column, it normally is a combination among two or 
three columns + the timestamp, e.g. row key = ${col1}${col2}${timestamp}. I 
can't get it working using sqoop, just wondering does sqoop --hbase-row-key 
allow me to do something like --hbase-row-key=col1, col2, tiemstamp during the 
import, then my HBase row key will end up with three fields combination?

Thanks,
Shengjie