text: --This table has information Brazilian zip codes and its lat/lng coordinates.
  --Use it to plot maps and find distances between sellers and customers.
  DROP TABLE IF EXISTS ec_data.geolocation CASCADE;
  CREATE TABLE ec_data.geolocation
  (
      zip_code_prefix TEXT,             --first 5 digits of zip code
      latitude        DOUBLE PRECISION, --latitude
      longitude       DOUBLE PRECISION, --longitude
      city            TEXT,             --city name
      state           TEXT              --state
  );