-- Drop indexes
DROP INDEX IF EXISTS idx_polls_related_article_id;
DROP INDEX IF EXISTS idx_polls_related_event_id;
DROP INDEX IF EXISTS idx_polls_related_video_url;

-- Remove relationship columns
ALTER TABLE polls DROP COLUMN IF EXISTS related_article_id;
ALTER TABLE polls DROP COLUMN IF EXISTS related_event_id;
ALTER TABLE polls DROP COLUMN IF EXISTS related_video_url;
