-- Draft vs published visibility for LMS and exam-prep practices.
ALTER TABLE lms_practices
    ADD COLUMN publish_status VARCHAR(16) NOT NULL DEFAULT 'PUBLISHED'
        CONSTRAINT chk_lms_practices_publish_status CHECK (publish_status IN ('DRAFT', 'PUBLISHED'));

ALTER TABLE exam_prep.lesson_practices
    ADD COLUMN publish_status VARCHAR(16) NOT NULL DEFAULT 'PUBLISHED'
        CONSTRAINT chk_exam_prep_lesson_practices_publish_status CHECK (publish_status IN ('DRAFT', 'PUBLISHED'));