* Zardosht Kasheff <zardosht@stripped> [09/09/25 19:01]:
> I want to maintain some statistics while a statement is executing
> (number of rows inserted, updated, deleted, or read). If query
> execution is single threaded (e.g. two handlers will not be reading
> rows from different indexes in parallel for an index merge), then
> maintaining these statistics becomes easy. I do not have to worry
> about concurrency issues.
> With that said, is query execution single-threaded? Or are threads
> spawned for parallel execution?
Currently one SQL statement runs from start to end in the same
We have been looking into opportunities with multi-threaded ALTER
In other words, today execution is single-threaded, but there are
middle-term plans for that to change.