def METHOD_NAME():
    op.drop_index(op.f('ix_campaign_view_user_id'), table_name='campaign_view')
    op.drop_index(op.f('ix_campaign_start_at'), table_name='campaign')
    op.drop_index(op.f('ix_campaign_end_at'), table_name='campaign')
    op.drop_column('campaign', 'flag_is_not_new')
    op.drop_column('campaign', 'flag_is_new_since_month')
    op.drop_column('campaign', 'flag_is_new_since_day')
    op.drop_column('campaign', 'flag_is_new_lurker_within_month')
    op.drop_column('campaign', 'flag_is_new_lurker_within_day')
    op.drop_column('campaign', 'flag_is_lurker_since_past')
    op.drop_column('campaign', 'flag_is_lurker_since_alltime')
    op.drop_column('campaign', 'flag_is_inactive_since_month')
    op.drop_column('campaign', 'flag_is_inactive_since_day')
    op.drop_column('campaign', 'flag_is_employer_past')
    op.drop_column('campaign', 'flag_is_employer_month')
    op.drop_column('campaign', 'flag_is_employer_day')
    op.drop_column('campaign', 'flag_is_employer_alltime')
    op.drop_column('campaign', 'flag_is_candidate_past')
    op.drop_column('campaign', 'flag_is_candidate_month')
    op.drop_column('campaign', 'flag_is_candidate_day')
    op.drop_column('campaign', 'flag_is_candidate_alltime')
    op.drop_column('campaign', 'flag_has_responded_candidate_past')
    op.drop_column('campaign', 'flag_has_responded_candidate_month')
    op.drop_column('campaign', 'flag_has_responded_candidate_day')
    op.drop_column('campaign', 'flag_has_responded_candidate_alltime')
    op.drop_column('campaign', 'flag_has_jobpost_unconfirmed_month')
    op.drop_column('campaign', 'flag_has_jobpost_unconfirmed_day')
    op.drop_column('campaign', 'flag_has_jobpost_unconfirmed_alltime')
    op.drop_column('campaign', 'flag_has_jobapplication_response_past')
    op.drop_column('campaign', 'flag_has_jobapplication_response_month')
    op.drop_column('campaign', 'flag_has_jobapplication_response_day')
    op.drop_column('campaign', 'flag_has_jobapplication_response_alltime')