Hi, PostgreSQL version: 9.1.16. Linux: RHEL6. After a heavy traffic run, a huge pg_toast table is seen. Its size is ~3G. There also exist other pg_toast tables in a much smaller size, for example, ~100M. The problem is that that huge pg_toast table never gets auto vacuumed while other small pg_toast tables do get auto vacuumed, as shown in pg logs. If running traffic again, the huge pg_toast table grows again. We have another system with the same setup but we only run light traffic on it. The pg_toast table from the same parent table also exists. But this pg_toast table only has a size ~50M and it gets auto vacuumed from time to time as shown in pg_logs. Why does not the huge pg_toast table in the first case get auto vacuumed? Are there anything we can do? Thanks, JL -- View this message in context: http://postgresql.1045698.n5.nabble.com/Why-pg-toast-table-not-get-auto-vacuumed-tp5811788.html Sent from the PostgreSQL - general mailing list archive at Nabble.com.
