{"id":"pipeline-stages-hide-materialization-barriers","text":"Pipeline stages have fundamentally different resource profiles hidden behind a uniform tuple interface: Count is an unbounded memory barrier that materializes all input before emitting any output, Sort bounds memory via external merge-sort disk spillover, yet both produce and consume identical tuple lists with no way for the pipeline to distinguish streaming stages from blocking ones.","truth_value":"IN","source":"","source_url":"","source_hash":"","justifications":[],"dependents":[],"metadata":{},"explanation":{"steps":[{"node":"pipeline-stages-hide-materialization-barriers","truth_value":"IN","reason":"premise"}]}}