A phase-based algebra for window functions enables predicate push-down, frame collapsing, and early pruning, giving up to 40.7x speedups in DuckDB.
Auerbach, Martin Hirzel, Louis Mandel, Avraham Shinnar, and Jérôme Siméon
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Window Function Optimization: Co-Evaluation and Other Techniques
A phase-based algebra for window functions enables predicate push-down, frame collapsing, and early pruning, giving up to 40.7x speedups in DuckDB.