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)]
