вот так взять и увеличить значение параметра?
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pg_size_pretty
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47 GB
(1 row)

#vacuum;

WARNING: relation "public.xprop1" contains more than "max_fsm_pages" pages with useful free space
HINT: Consider compacting this relation or increasing the configuration paramet er "max_fsm_pages".
WARNING: relation "pg_toast.pg_toast_618987" contains more than "max_fsm_pages" pages with useful free space
HINT: Consider compacting this relation or increasing the configuration paramet er "max_fsm_pages".

WARNING: relation "public.xprop" contains more than "max_fsm_pages" pages with useful free space
HINT: Consider compacting this relation or increasing the configuration parameter "max_fsm_pages".
NOTICE: number of page slots needed (2548672) exceeds max_fsm_pages (153600)
HINT: Consider increasing the configuration parameter "max_fsm_pages" to a value over 2548672.
VACUUM