mautrix-whatsapp/database/upgrades/41-historysync-store.sql

-- v41: Store history syncs for later backfills

CREATE TABLE history_sync_conversation (
    user_mxid                    TEXT,
    conversation_id              TEXT,
    portal_jid                   TEXT,
    portal_receiver              TEXT,
    last_message_timestamp       TIMESTAMP,
    archived                     BOOLEAN,
    pinned                       INTEGER,
    mute_end_time                TIMESTAMP,
    disappearing_mode            INTEGER,
    end_of_history_transfer_type INTEGER,
    ephemeral_expiration         INTEGER,
    marked_as_unread             BOOLEAN,
    unread_count                 INTEGER,
    PRIMARY KEY (user_mxid, conversation_id),
    FOREIGN KEY (user_mxid) REFERENCES "user" (mxid) ON DELETE CASCADE ON UPDATE CASCADE,
    FOREIGN KEY (portal_jid, portal_receiver) REFERENCES portal (jid, receiver) ON DELETE CASCADE ON UPDATE CASCADE
);

CREATE TABLE history_sync_message (
    user_mxid       TEXT,
    conversation_id TEXT,
    message_id      TEXT,
    timestamp       TIMESTAMP,
    data            BYTEA,
    PRIMARY KEY (user_mxid, conversation_id, message_id),
    FOREIGN KEY (user_mxid) REFERENCES "user" (mxid) ON DELETE CASCADE ON UPDATE CASCADE,
    FOREIGN KEY (user_mxid, conversation_id) REFERENCES history_sync_conversation (user_mxid, conversation_id) ON DELETE CASCADE
);