I'm following the format used for jdbc adapter.  E.g., 

CREATE TABLE entries (
    id bigserial,
    entryid text NOT NULL UNIQUE,
    creationdate timestamp without time zone NOT NULL DEFAULT current_timestamp,
    datelastupdated timestamp without time zone NOT NULL DEFAULT current_timestamp,
    entrybody text,
    feed text,
    categories character varying[],
    PRIMARY KEY(datelastupdated, id)
);

Do we want to differ from this?