jap_learn/sql/states.sql

create table states
(
    id          INTEGER
        primary key autoincrement,
    word_id     INTEGER           not null
        references words
            on delete cascade,
    deck_id      INTEGER              not null
        references decks
            on delete cascade,
    score       INTEGER default 1 not null,
    last_opened INTEGER           not null,
    fsrs_opened INTEGER not null,
    fsrs_memory INTEGER not null,
    fsrs_open_day INTEGER not null
);