Annotation Query Format
An annotation is an event that is overlaid on top of graphs. The query can have up to three columns per row, the time column is mandatory. Annotation rendering is expensive so it is important to limit the number of rows returned. - column with alias: time for the annotation event time. Use epoch time or any native date data type. - column with alias: time_end optional, use for the annotation/alert with region. Use epoch time or any native date data type. - column with alias: text for the annotation text - column with alias: tags for annotation tags. This is a comma separated string of tags e.g. 'tag1,tag2' - column with alias: type optional, string value shall contains 'annotation' or 'alert' for event type. - column with alias: title for the annotation/alert title, optional