"Gregory Maxwell" <gmaxwell@xxxxxxxxx> writes: > So it's by design that these now bloated index won't shrink if let > unvacuumed? I didn't expect to hit something like that. Well, the VACUUM FULL algorithm is incapable of shrinking indexes --- the only way is REINDEX, or something else that reconstructs indexes from scratch, such as CLUSTER. One of the things we need to look into is putting more smarts into VACUUM so that it automatically does something reasonable when faced with extreme cases like these. regards, tom lane
