I define a alert rule with clickhouse datasource,and when i click ‘Test rule’ button,i got the following error message:tsdb.HandleRequest() error Could not find executor for data source type: vertamedia-clickhouse-datasource.
Any body know why this happends?Grafana ver(Grafana v7.1.5 (9893b8c53d)
) and clickhouse version(20.4.5.36).