ALTER TABLE RENAME COLUMN support

[JelteF]

No description provided.

[wuputah]

This is the one that works.

postgres=# \d md2
                   Table "public.md2"
 Column |     Type      | Collation | Nullable | Default
--------+---------------+-----------+----------+---------
 i      | integer       |           |          |
 j      | real          |           |          |
 k      | numeric(12,2) |           |          |
 js     | json          |           |          |

postgres=# alter table md2 rename column i to z;
ALTER TABLE
Time: 53.794 ms
postgres=# \d+ md2
                                              Table "public.md2"
 Column |     Type      | Collation | Nullable | Default | Storage  | Compression | Stats target | Description
--------+---------------+-----------+----------+---------+----------+-------------+--------------+-------------
 z      | integer       |           |          |         | plain    |             |              |
 j      | real          |           |          |         | plain    |             |              |
 k      | numeric(12,2) |           |          |         | main     |             |              |
 js     | json          |           |          |         | extended |             |              |
Access method: duckdb