neat. i'm pretty novice in the guts of this kind of stuff, but how does this work under the hood for blocking operators where they "cannot output a single row u

neat. i'm pretty novice in the guts of this kind of stuff, but how does this work under the hood for blocking operators where they "cannot output a single row until the last row of their input has been seen"? i think this is where spark shuffling comes in? but how does it work here. https://duckdb.org/docs/stable/guides/performance/how_to_tune_workloads#blocking-operators https://duckdb.org/docs/stable/guides/performance/how_to_tun...