text: DROP TABLE IF EXISTS thor.descriptors CASCADE;
  CREATE TABLE thor.descriptors (
      descriptor_id   SERIAL,
      name            VARCHAR(31),
      active          BOOLEAN,
      data_source     JSON,
      data_set        JSON,
      seconds         INTEGER
  );
  
  ALTER TABLE thor.descriptors
      ADD CONSTRAINT descriptors_pk
          PRIMARY KEY (descriptor_id);
  
  CREATE INDEX descriptors_name_index
      ON thor.descriptors(name);
  