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Executes a LazyFrame query and returns its result as a DataFrame. You can select the execution engine and control optimization behavior.

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Syntax

LazyFrame.collect(*, engine: EngineType = 'auto', background: bool = False, optimizations: QueryOptFlags = (), **_kwargs: Any) -> DataFrame | InProcessQuery

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Source: polars.LazyFrame.collect — Polars documentation. Checked 2026-11-03.