I have been looking for templates to use with the new ODBC database monitoring item type with out success. 

I have created a rudimentary one for postgres.   To use it follow these instructions for setting up ODBC on the server side.

https://www.zabbix.com/documentation/4.0/manual/config/items/itemtypes/odbc_checks

We run multiple instances on each server so I create a host for each database and use the {HOST.NAME} macro in the item key.  If you want to use a different macro like {$DATABASE.NAME} then do a find and replace before you import this. As well all items have the name zabbix set as the user and the password set as " my_password". Again you may want to do a find and replace before importing.

Then import this template and add it to the host you are using and then go through and double check the items.

I know this functionality was in Zabbix 3 so this may work there but I created this in 4 so that is all I know it works with.  I hope some one finds this useful.