We are using pgAdmin 4 4.12. Our Administrators often work with copy and paste rows within a table using the GUI. In pgAdmin III it was not a problem, the column "oid" was not copied and pasted. But in pgAdmin 4, when I insert the copied row, the oid is filled with the value from the copied dataset. After "Saving Data Changes" an error message is shown:
ERROR: column "oid" of relation "tablename" does not exist
There is also no possibility to delete the oid manually ofter insert, the column is locked.
