Re: No enough privileges for autovacuum worker

I do not know who is running dict.trigrams_vector.

There is no explicit call for this function.

It is used implicitly in the index definition for the table fpbackup.fp_vpn_data_2021w12:

CREATE INDEX fp_vpn_data_2021w12_trigrams_vector_idx ON fpbackup.fp_vpn_data_2021w12 USING gin
(dict.trigrams_vector((fp_host)::text));

As  I know there is no explicit call for dict.trigrams_vector by me or
anyone else.

From the database  logs  I cannot figure out what user is responsible for
calling  this  function  as user field in the log in ordinary situation should be, for example, [user@dbname],
not [(at)]