text: drop table if exists responsekeys;
  CREATE TABLE responsekeys(
     responseKey varchar PRIMARY KEY,
     issuedOn TIMESTAMPTZ,
     used boolean
  );
  
  drop table if exists response;
  CREATE TABLE response(
     responseId varchar PRIMARY KEY,
     responseKey varchar REFERENCES responsekeys(responseKey),
     selected varchar,
     createdOn TIMESTAMPTZ
  );
  
  drop table if exists userComments ;
  CREATE TABLE userComments (
     commentId varchar PRIMARY KEY,
     responseKey varchar REFERENCES responsekeys(responseKey),
     commentText VARCHAR,
     createdOn TIMESTAMPTZ
  );
  