https://github.com/GreptimeTeam/greptimedb/blob/7199823be9cf16f4d13e806587f7bc49583cc760/src/promql/src/extension_plan/instant_manipulate.rs#L421 noob question could this result in infinite loop if batch is empty?

I think it will not. @Ruihang WDYT?

no, next time it will proceed with a new

batch

polled from

self.input

, until

self.input

is drained