create or replace view power_v as
  select time,
         cast(values->'ActivePowerL1'->>'value' as float) as power_l1,
         cast(values->'ActivePowerL2'->>'value' as float) as power_l2,
         cast(values->'ActivePowerL3'->>'value' as float) as power_l3,
         cast(values->'ActivePowerL123'->>'value' as float) as power_total,
         cast(values->'PowerfactorL1'->>'value' as float) as factor_l1,
         cast(values->'PowerfactorL2'->>'value' as float) as factor_l2,
         cast(values->'PowerfactorL3'->>'value' as float) as factor_l3,
         device
    from measurements
    where application = 'com-passavant-geiger-poc' and
          attributes->>'FPort' = '1';