SELECT 
    (SELECT 
		(SELECT LEAST(525, bo_entity.bid_amt) FROM bids bproxy
			WHERE bproxy.auction_id = bo_entity.auction_id AND bproxy.customer_id <> bo_entity.customer_id
			LIMIT 1
		)
        FROM bids bo_entity
        WHERE bo_entity.auction_id = auctions.entity_id
        ORDER BY bo_entity.bid_amt DESC, bo_entity.created_at ASC
        LIMIT 1
	) AS current_bid_amt
FROM auctions
WHERE auctions.entity_id = 4;