Thank you @boheme61 giving better light on that!
I didnt know about ‘recorder’ existence 
I think Ive found interesting topic re this.
I’ll give a try later today Grafana with this InnoDB.
Will see if this can replace standard stuff Im using for graph (im most interested energy dashboard thought)
Just (very) last question re backup:
Im using this plugin to automate backups and copy to gDrive.
I guess backup / restore process implemented there will not cover my InfluxDB db,and I have to care myself for that. Is that correct ?