CREATE TABLE NAMED_CAMEL_IDEMPOTENT (
  NAME varchar,
  KEY varchar,
  PRIMARY KEY (NAME, KEY)
);
INSERT INTO NAMED_CAMEL_IDEMPOTENT(NAME, KEY)
    VALUES('ID','Add_Exists');
INSERT INTO NAMED_CAMEL_IDEMPOTENT(NAME, KEY)
    VALUES('ID','Contains_Exists');
INSERT INTO NAMED_CAMEL_IDEMPOTENT(NAME, KEY)
    VALUES('ID','Remove_Exists');