I'm buried and not having any good ideas how to diagnose this or what else to send, so here it is. Feel free to tell me why I'm the one whose confused.. postgres=# SELECT pid, now(), query_start, state, query FROM pg_stat_activity WHERE pid=27757; pid | now | query_start | state | query -------+-------------------------------+-------------------------------+--------+------------------------------------------------------------- 27757 | 2018-08-17 11:10:16.568429-04 | 2018-08-17 10:17:52.814282-04 | active | autovacuum: VACUUM ANALYZE public.eric_enodeb_cell_20180815 (1 row) postgres=# \! ps -O lstart 27757 PID STARTED S TTY TIME COMMAND 27757 Fri Aug 17 08:53:20 2018 S ? 00:11:56 postgres: autovacuum worker process xxxxxton postgres=# \! date Fri Aug 17 11:10:58 EDT 2018 Justin