Hi everyone Im having trouble setting up experiments with growthBook. My app has a postgres database where all data is stored and we use mixpanel for event tracking. When I try to set up an experiment I get the error "relation "viewed_experiment" does not exist" , but I dont know why growthbook is trying to find that table? I never created or anything and in the docs theres nothing about it

hi Maria - what data sources do you have defined?

I selected the postgres one for this experiment

right, we make some assumptions

Yes

what did you set for the trackingCallback ?

mixpanel

I see - we currently don’t support joining one experiment across different data sources

hmmm so what you are saying is that I need to store the experimentid and variationid in a table in postgres?

yes - so you can either push that metric to mixpanel, or also add a tracking call for postgres (you can add both mixpanel and postgres in that call - or use something like Segment or Rudderstack to do the pipelining)

Ok Thank you Graham