On Tue, Sep 08, 2020 at 05:38:24PM +0800, ZongtianHou wrote: > I found dropped columns still exist in pg_attribute table. In the > below example I drop c2 column and vacuum (full) this table and > pg_attribute, it still exist (the last row). how can I clean it away? Unfortunately only by copying the table aside, and then renaming new table. But - the dropped attribute will not sure any disk space, as long as you ran some vacuums. Best regards, depesz
