ALTER TABLE workbench_pending_memories
    DROP COLUMN IF EXISTS reconfirmed_at,
    DROP COLUMN IF EXISTS reconfirmed_content,
    DROP COLUMN IF EXISTS native_memory_id,
    DROP COLUMN IF EXISTS legacy_history_id;

DROP INDEX IF EXISTS idx_memory_extraction_due;
ALTER TABLE memory_subjects DROP COLUMN IF EXISTS extract_attempt_id;
ALTER TABLE memory_subjects DROP COLUMN IF EXISTS extract_lease_until;
ALTER TABLE memory_subjects DROP COLUMN IF EXISTS extract_started_at;
ALTER TABLE memory_subjects DROP COLUMN IF EXISTS extract_next_at;
ALTER TABLE memory_subjects DROP COLUMN IF EXISTS extract_failures;
ALTER TABLE memory_subjects DROP COLUMN IF EXISTS extract_chat_model_id;
ALTER TABLE memory_subjects DROP COLUMN IF EXISTS extract_language;