"=?gb18030?B?wb249rqi19O1xLX5?=" <1726002692(at)qq(dot)com> writes: > Sorry, it's my fault. The empty files generated by "vacuumdb - f " is located under the $pgdata / base / 99522 directory
Oh, if they are under the database's subdirectory then it's not so surprising. VACUUM FULL (or, actually, any table deletion or rewrite) leaves behind an empty "tombstone" file that is just there to prevent re-use of that table number for the moment. It'll go away at the next checkpoint.