FrostByte/server/migrations/0005_engagements_table.sql

CREATE TABLE IF NOT EXISTS engagements (
    user_id BIGINT NOT NULL,
    post_id BIGINT NOT NULL,
    FOREIGN KEY (user_id) REFERENCES users (id) ON DELETE CASCADE,
    FOREIGN KEY (post_id) REFERENCES posts (id) ON DELETE CASCADE,
    PRIMARY KEY (user_id, post_id)
);