[Bug]: show system generated column in SYS.ALL_TAB_COLS after alter drop column

[krihy]

ODC version

4.2.4

OB version

4.2.1.4

What happened?

What did you expect to happen?

or

don't show system generated column

How can we reproduce it (as minimally and precisely as possible)?

alter drop column in table in odc, then show table columns in left tree

Anything else we need to know?

No response