(B)0[mmissing-value =
qqq> [4mRDB$MISSING[m qqqqqqqqqqqqqqqqq>qqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqk
lqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqq<qqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqj
x
mq> ( qwq> context-var . field-name qqqqqqqqqqqqqqqwqq> ) qqq>
tq> relation-name . field-name qqqqqqqqqqqqqu
mq> db-handle . relation-name . field-name qj
Additional Information:
explode
extract