Specifying the reformatting strategy

In this query, t2 is very large, and has no index:

select *
from t1, t2
where c11 > 0
    and c12 = c21
    and c22 = 0

The abstract plan that specifies the reformatting strategy on t2 is:

( g_join
    (t_scan t1
        (store Worktab1
            (t_scan t2)

In the case of the reformatting strategy, the store operator is an operand of scan. This is the only case when the store operator is not the operand of a plan operator.