When running some queries using F5, Toad hangs or takes a long time to return results. (4232178)

When running some queries using F5, Toad hangs or takes a long time before it return results. This is only a problem when running with F5 Execute Script.

Using F9 or in SQL Plus does not have the same problem. This is also only a problem with some queries.Very short queries that return only a few records will come up quickly. The more records, the slower the results and sometimes it hangs.

Example:
select * from V$SESSION;

-- If this returns 10 rows, it takes about 40 seconds to return results if run with F5. It returns in msec if run by other means.
-- If this returns more rows, it can take minutes to return.