ALTER TABLE nfs_exports
    ADD COLUMN read_only     INTEGER NOT NULL DEFAULT 0,
    ADD COLUMN async_       INTEGER NOT NULL DEFAULT 0,
    ADD COLUMN root_squash   INTEGER NOT NULL DEFAULT 1,
    ADD COLUMN subtree_check INTEGER NOT NULL DEFAULT 0,
    ADD COLUMN fsid         INTEGER NOT NULL DEFAULT 0,
    ADD COLUMN advanced      TEXT NOT NULL DEFAULT '{}';

CREATE INDEX IF NOT EXISTS idx_nfs_exports_fsid ON nfs_exports(fsid);