arbor

Leverages SQL CTEs for fast traversal, with benchmarks showing efficient performance on tables with over 10 million rows, as detailed in the README's timing results.

All methods return standard Ecto queries, allowing easy chaining with filters, orders, and other query conditions, as shown in usage examples like `Comment.siblings |> Comment.order_by_popularity`.

Requires only a `parent_id` field and minimal setup in Ecto schemas, with options to customize keys and CTE names to fit existing database designs.

Supports optional depth parameters for descendants queries, enabling performance optimizations by limiting tree depth, as demonstrated in the `descendants(2)` example.