exercițiu

Reading the optimized plan

The naive plan you just printed is the starting point. Before running the query, Polars rewrites it: pushing filters down, dropping columns it doesn't need, and turning sort+head into a fast top-k. Use .explain() to see the optimized plan.

polars is loaded as pl, and the LazyFrame top_titles_by_format is the same query as before.

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100 XP

Show the optimized plan for top_titles_by_format.

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exercițiu