v.22.5Experimental Feature
Improve WATCH query latency and cancel operation in WindowView
Improve theWATCHquery in WindowView: 1. Reduce the latency of providing query results by calling thefire_conditionsignal. 2. Makes the cancel query operation(ctrl-c) faster, by checkingisCancelled()more frequently. #37226 (vxider).
Why it matters
The update addresses the delay in delivering query results when usingWATCH by calling the fire_condition signal more proactively. It also enhances user experience by enabling quicker cancellation of running queries (e.g., via ctrl-c) through more frequent isCancelled() checks.How to use it
Users simply runWATCH queries as usual; the improvements are internal and automatically reduce latency and speed up query cancellation without requiring configuration changes.