DROP TABLE oauth_access_token;
create table oauth_access_token (
   token_id VARCHAR(256),
   token BLOB,
   authentication_id VARCHAR(256),
   user_name VARCHAR(256),
   client_id VARCHAR(256),
   authentication BLOB,
   refresh_token VARCHAR(256)
 );
 
 DROP TABLE oauth_refresh_token;
 create table oauth_refresh_token (
   token_id VARCHAR(256),
   token BLOB,
   authentication BLOB
 );