sql: REASSIGN OWNED does not change the ownership of all objects

[knz]

REASSIGN OWNED only processes databases, schemas, types and tables.

It mistakenly skips over views and sequences.

These must be processed too. This prevents a user from successfully using REASSIGN OWNED to drop a user account

Here's an example:

CREATE USER blah;
GRANT CREATE ON DATABASE defaultdb TO blah;
CREATE USER blih WITH PASSWORD 'abc';
GRANT CREATE ON DATABASE defaultdb TO blih;

Now log into the database as blih, then create both a table and a view that depends on it.

Then on the original session:

REVOKE CREATE ON DATABASE defaultdb FROM blih;
REASSIGN OWNED BY blih TO blah;
DROP USER blih;

gives:

ERROR: cannot drop role/user blih: grants still exist on defaultdb.public.my, defaultdb.public.myv

[knz]

cc @solongordon @piyush-singh @vy-ton for triage

[knz]

probably related to #57967

[knz]

I was mistaken - this bug does not exist.