Complex Partitioning — Solution & ExplanationProblems / Complex Partitioning / EditorialApproachThis problem demonstrates that multiple window functions with different partitioning can coexist in a single query.

customer_rank: Partitioned by customer_id — ranks each order within its customer.

category_rank: Partitioned by category — ranks each order within its product category.

overall_rank: No partition — ranks across all orders globally.

All three use ORDER BY amount DESC so the highest-value order gets rank 1 in each context. The same order can have very different ranks depending on the partition context.Hints

You need three separate OVER() clauses with different PARTITION BY specifications.

The overall rank has no PARTITION BY — it ranks across all rows.

In PySpark, define three separate Window specs.

Solve Complex Partitioning yourself →