Zabbix fail to call timescaledb function if zabbix and timescaledb location in different schema

My  postgresql structure is:

<database>.<schema_for_zabbix>.*
<database>.<schema_for_tsdb>.*
<database>.<schema_for_collect_log>.*
...

timescaledb was installed via command:

create extension timescaledb with schema tsdb cascade; 

because all schemes in this database use timescaledb functions

then i set search_path:

alter database db_mon set search_path to zabbix, tsdb, collect_log;

but zabbix d'not works with this set

I think this is because before each call of a SQL query, zabbix overwrites the variable "search_path" with the one specified in the config file