Dropdown variable from InfluxQL tags

[llamafilm]

• What Grafana version and what operating system are you using?
  Grafana Cloud

• What are you trying to achieve?
  I want to create a dropdown variable at the top of the dashboard, showing tag values from a measurement in InfluxDB.

• How are you trying to achieve it?
  I made a variable with type: query and set the query to: SHOW TAG VALUES ON "example-db" WITH KEY = "site"

• What happened?
  The variable is empty, no values can be selected.
  

• What did you expect to happen?
  I expected to see a list of tags, similar to what this query returns in the Explore page.
  

  

Documentation here: Explore your schema using InfluxQL | InfluxDB OSS v1 Documentation

[yosiasz]

Maybe look into

${var1:text} to access a key and ${var1:value} to access value