# Lock (The Iron Padlock) Waiting to acquire a **heavyweight (standard) lock**. Unlike **LWLocks**, these are long-duration, user-visible, and can wait indefinitely. If you see these, someone else is holding the padlock on the table or row you want! ![[advisory]] ![[applytransaction]] ![[extend]] ![[frozenid]] ![[object]] ![[page]] ![[relation]] ![[spectoken]] ![[transactionid]] ![[tuple]] ![[userlock]] ![[virtualxid]]