The following steps cause Toad to hang, using 100% cpu of one core.
1. Find a table with no rows
2. Go the the Editor
3. Type: SELECT rowid FROM table_with_no_rows;
4. Run the script with F9.
Toad then hangs, using 100% of CPU.
It's reproducible every time on a table with no rows in it. Toad has to be stopped via Task Manager when this happens.
It works ok if run with F5, and also it works ok in SQL Plus.
