CREATE TABLE IF NOT EXISTS questions (
    id TEXT NOT NULL PRIMARY KEY,
    created BIGINT NOT NULL,
    owner TEXT REFERENCES users(id) ON DELETE CASCADE,
    receiver TEXT REFERENCES users(id) ON DELETE CASCADE,
    content TEXT NOT NULL,
    is_global INT NOT NULL,
    answer_count INT NOT NULL,
    -- likes
    likes INT NOT NULL,
    dislikes INT NOT NULL,
    -- ...
    context TEXT NOT NULL,
    ip TEXT NOT NULL,
    drawings TEXT NOT NULL
)
