Can Oracle pick an index hint for an index that's inside of a sub query?

Question

I have a query like the following:
Select /*INDEX(Table1 TABLE1_IDX) INDEX(Table3 Table3_IDX) */
from (select /*INDEX(Table1 TABLE1_IDX) */
T1.col1,t1.col2,...
from Table1 T1
Join Table2 T2
ON T1.col1 = T2.col1
T1.col2 = T2.col2) Tsub
Right Outer Join Table3 T3
ON T3.col1 = Tsub.col1
T3.col2 = Tsub.col2
Will Oracle pick up and use the index for Table1 in the join to Table3 even though it's being refernced from with in a sub-select statement? Will it know to use the index for the 'Tsub' alias to join it to Table3?

Answer 1

"Hints apply only to the optimization of the block of a statement in which they appear. A statement block is any one of the following statements or parts of statements:
A simple SELECT, UPDATE, or DELETE statement
A parent statement or subquery of a complex statement
A part of a compound query"
however, your outer query has NOTHING named "table1". hints must use the ALIAS (if one is given), so your outer hint for table1_idx should reference "TSUB".
but even more to the point, once the subquery is complete, you'll outer-join table3 to it, which doesn't need an index on tsub.