03 §7 "one sweeper at a time" (F9). Returns null when another instance holds the lock. The lock is owned by a
transaction held open on a private independent executor — pooled connections make a session-level lock unsafe —
and the returned Executor is a second independent executor, so the pass's chunked statements commit on their own.
A process that dies drops its connection, which ends the transaction and frees the lock.
03 §7 "one sweeper at a time" (F9). Returns null when another instance holds the lock. The lock is owned by a transaction held open on a private independent executor — pooled connections make a session-level lock unsafe — and the returned Executor is a second independent executor, so the pass's chunked statements commit on their own. A process that dies drops its connection, which ends the transaction and frees the lock.