Function silent_for_update_count 

pub fn silent_for_update_count() -> u64

v7.37.14 (A2.5-stub) — read the process-wide silent-FOR-UPDATE counter. Engines / spgctl / monitoring use this to surface “how many advisory row locks did the workload ask for since process start”. Returns 0 if no FOR UPDATE / FOR SHARE clause has hit the parser yet.