CREATE TABLE posts (
    id SERIAL PRIMARY KEY,
    title TEXT NOT NULL,
    content TEXT,
    created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
    updated_at TIMESTAMP,
    is_published BOOLEAN DEFAULT FALSE
);

CREATE TABLE post_files (
    id SERIAL PRIMARY KEY,
    post_id INTEGER REFERENCES posts(id) ON DELETE CASCADE,
    file_type TEXT,
    file_path TEXT,
    original_name TEXT,
    uploaded_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP
);