-- create aqi table CREATE TABLE aqi ( id SERIAL NOT NULL PRIMARY KEY, epoch_time INT NOT NULL, sensor_id SMALLINT NOT NULL, time_stamp VARCHAR(20) NOT NULL, uptime INT NOT NULL, pm25 FLOAT4 NOT NULL, pm10 FLOAT4 NOT NULL, aqi_value FLOAT4 NOT NULL, aqi_category VARCHAR(40) NOT NULL ); -- index for epoch_time where queries CREATE INDEX aqi_epochtime ON aqi (epoch_time DESC); -- example aqi insert INSERT INTO aqi ( epoch_time, sensor_id, time_stamp, uptime, pm25, pm10, aqi_value, aqi_category ) VALUES ( 1613648178, 1, '2021-02-18 18:36:18', 206728, 20.4, 22.8, 67.0, 'Moderate' ); -- create weather table CREATE TABLE weather ( id SERIAL NOT NULL PRIMARY KEY, epoch_time INT NOT NULL, sensor_id SMALLINT NOT NULL, time_stamp VARCHAR(20) NOT NULL, temperature FLOAT4 NOT NULL, pressure FLOAT4 NOT NULL, humidity FLOAT4 NOT NULL, wind_speed FLOAT4 NOT NULL, wind_direction INT2 NOT NULL, weather_name VARCHAR(29) NOT NULL, weather_icon VARCHAR(3) NOT NULL ); -- index for epoch_time where queries CREATE INDEX weather_epochtime ON weather (epoch_time DESC); -- example weather insert INSERT INTO weather ( epoch_time, sensor_id, time_stamp, temperature, pressure, humidity, wind_speed, wind_direction, weather_name, weather_icon ) VALUES ( 1613648178, 1, '2021-02-18 18:36:18', 27.32, 982.41, 39.62598, 3.09, 40, 'Clouds', '04n' );