text: CREATE TABLE IF NOT EXISTS `PREVIEW_BLOB` (
    `OWNER_NODE_ID` bigint(20) NOT NULL,
    `TOKEN_ID` bigint(20) NOT NULL,
    `PREVIEW_BLOB` mediumblob,
    PRIMARY KEY (`OWNER_NODE_ID`,`TOKEN_ID`),
    CONSTRAINT `PREVIEW_OWNER_FK` FOREIGN KEY (`OWNER_NODE_ID`) REFERENCES `JDONODE` (`ID`) ON DELETE CASCADE
  )
  