Returns a reference to a row of query results in a MaxL output table, as a list.
Essbase->{STATUS} is set to one of the following:
$MAXL_STATUS{NOERR} on success.
$MAXL_STATUS{END_OF_DATA} if there were no rows to fetch.
$MAXL_STATUS{ERROR} if a user error has occured.
A row of record is defined as { val[0], val[1], ... , val[NUM_OF_FIELDS-1] } }
Row numbers are counted cardinally from 0:[0, 1, 2, ... , NUM_OF_ROWS - 1]