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
    (scan
        (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.