-- Apply to every project business database before enabling task questions.
CREATE TABLE IF NOT EXISTS workbench.operational_task_questions (
    project_id uuid NOT NULL,
    task_id uuid NOT NULL,
    question_request_id uuid NOT NULL,
    document jsonb NOT NULL,
    PRIMARY KEY (project_id, question_request_id),
    FOREIGN KEY (project_id, task_id)
        REFERENCES workbench.operational_tasks(project_id, task_id) ON DELETE CASCADE
);
CREATE INDEX IF NOT EXISTS operational_task_questions_task
    ON workbench.operational_task_questions(project_id, task_id);
CREATE UNIQUE INDEX IF NOT EXISTS operational_task_questions_pending
    ON workbench.operational_task_questions(project_id, task_id)
    WHERE document->>'status' = 'pending';