{"adoption": {"forks": 2047, "observed_at": "2026-08-28T04:09:09.251831+00:00", "stars": 5066}, "canonical_url": "https://ross.abutalabs.com/products/bustub", "card": {"archived": false, "artifact_type": "learning-resource", "description": "The BusTub Relational Database Management System (Educational)", "domain": ["databases", "education", "developer-tools"], "enriched": true, "function": ["database", "interpreter", "cli"], "health_score": 98, "homepage": "https://15445.courses.cs.cmu.edu", "language": "C++", "license": "MIT", "license_family": "permissive", "maturity": "active", "member_repos": ["cmu-db/bustub"], "name": "cmu-db/bustub", "platform": ["windows", "cpp", "cli"], "pushed_at": "2026-08-24T19:12:43+00:00", "repo": "cmu-db/bustub", "stars": 5066, "tags": ["dbms", "educational", "course-project", "sql", "cmu-15-445", "relational-database", "linux", "macos"], "topics": ["database", "dbms"], "urls": [], "use_cases": ["learn how a relational database management system works internally", "implement a buffer pool manager and disk storage for a DBMS", "build B+ tree and hash table indexes from scratch", "implement query execution operators like joins, sorting, and aggregation", "study concurrency control and transaction processing in a real codebase", "practice systems programming in C++ on a database codebase"], "what_it_is": "BusTub is an educational relational database management system written in C++ and built at Carnegie Mellon University for the 15-445/645 Introduction to Database Systems course. Students implement its core components (storage, indexes, query execution, concurrency control) through course projects, and it supports basic SQL with an interactive shell.", "when_to_avoid": ["you need a production-ready database for real workloads", "you need full SQL compliance, high performance, or durability guarantees", "you want to deploy a database server in an application"], "when_to_choose": ["you are taking or self-studying CMU 15-445/645 and want to complete its projects", "you want a guided, hands-on way to learn DBMS internals", "you want a small, readable C++ codebase to explore database architecture"]}, "data_as_of": "2026-08-30T08:39:29.467469+00:00", "members": [{"path": "/products/bustub", "repo": "cmu-db/bustub", "role": "main", "score": 82}], "provenance": {"archived": {"kind": "observed", "observed_at": "2026-08-28T04:09:09.251831+00:00", "source": "github"}, "artifact_type": {"confidence": null, "enriched_at": "2026-08-29T18:02:50.082662+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "9c660c1d0e05628661419862df860980a3658fbdf418435311aae24b5f8a9556", "fetched_at": "2026-08-28T04:09:09.251831+00:00", "kind": "readme", "missing": false, "url": "https://github.com/cmu-db/bustub"}, {"content_hash": "f5f08a742b3ec11d780ca1c7c6998678ed08e54e2b116259ace3603d35b51ba0", "fetched_at": "2026-08-29T08:57:42.755562+00:00", "kind": "homepage", "missing": false, "url": "https://15445.courses.cs.cmu.edu"}, {"content_hash": "d3b0800f0a64d5032872b42e8f21823304f998e55ae5c984ace9a1a575c43e7d", "fetched_at": "2026-08-29T08:57:42.764495+00:00", "kind": "site_page", "missing": false, "url": "https://15445.courses.cs.cmu.edu/fall2026/faq.html"}], "taxonomy_version": 1}, "description": {"kind": "observed", "observed_at": "2026-08-28T04:09:09.251831+00:00", "source": "github"}, "domain": {"confidence": null, "enriched_at": "2026-08-29T18:02:50.082662+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "9c660c1d0e05628661419862df860980a3658fbdf418435311aae24b5f8a9556", "fetched_at": "2026-08-28T04:09:09.251831+00:00", "kind": "readme", "missing": false, "url": "https://github.com/cmu-db/bustub"}, {"content_hash": "f5f08a742b3ec11d780ca1c7c6998678ed08e54e2b116259ace3603d35b51ba0", "fetched_at": "2026-08-29T08:57:42.755562+00:00", "kind": "homepage", "missing": false, "url": "https://15445.courses.cs.cmu.edu"}, {"content_hash": "d3b0800f0a64d5032872b42e8f21823304f998e55ae5c984ace9a1a575c43e7d", "fetched_at": "2026-08-29T08:57:42.764495+00:00", "kind": "site_page", "missing": false, "url": "https://15445.courses.cs.cmu.edu/fall2026/faq.html"}], "taxonomy_version": 1}, "enriched": {"inputs": [], "kind": "computed", "method": "enrichment_status"}, "function": {"confidence": null, "enriched_at": "2026-08-29T18:02:50.082662+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "9c660c1d0e05628661419862df860980a3658fbdf418435311aae24b5f8a9556", "fetched_at": "2026-08-28T04:09:09.251831+00:00", "kind": "readme", "missing": false, "url": "https://github.com/cmu-db/bustub"}, {"content_hash": "f5f08a742b3ec11d780ca1c7c6998678ed08e54e2b116259ace3603d35b51ba0", "fetched_at": "2026-08-29T08:57:42.755562+00:00", "kind": "homepage", "missing": false, "url": "https://15445.courses.cs.cmu.edu"}, {"content_hash": "d3b0800f0a64d5032872b42e8f21823304f998e55ae5c984ace9a1a575c43e7d", "fetched_at": "2026-08-29T08:57:42.764495+00:00", "kind": "site_page", "missing": false, "url": "https://15445.courses.cs.cmu.edu/fall2026/faq.html"}], "taxonomy_version": 1}, "health_score": {"inputs": ["days_since_push", "days_since_release", "archived"], "kind": "computed", "method": "health_v1"}, "homepage": {"kind": "observed", "observed_at": "2026-08-28T04:09:09.251831+00:00", "source": "github"}, "language": {"kind": "observed", "observed_at": "2026-08-28T04:09:09.251831+00:00", "source": "github"}, "license": {"kind": "observed", "observed_at": "2026-08-28T04:09:09.251831+00:00", "source": "github"}, "license_family": {"inputs": ["license"], "kind": "computed", "method": "license_family"}, "maturity": {"confidence": null, "enriched_at": "2026-08-29T18:02:50.082662+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "9c660c1d0e05628661419862df860980a3658fbdf418435311aae24b5f8a9556", "fetched_at": "2026-08-28T04:09:09.251831+00:00", "kind": "readme", "missing": false, "url": "https://github.com/cmu-db/bustub"}, {"content_hash": "f5f08a742b3ec11d780ca1c7c6998678ed08e54e2b116259ace3603d35b51ba0", "fetched_at": "2026-08-29T08:57:42.755562+00:00", "kind": "homepage", "missing": false, "url": "https://15445.courses.cs.cmu.edu"}, {"content_hash": "d3b0800f0a64d5032872b42e8f21823304f998e55ae5c984ace9a1a575c43e7d", "fetched_at": "2026-08-29T08:57:42.764495+00:00", "kind": "site_page", "missing": false, "url": "https://15445.courses.cs.cmu.edu/fall2026/faq.html"}], "taxonomy_version": 1}, "member_repos": {"kind": "observed", "observed_at": "2026-08-28T04:09:09.251831+00:00", "source": "github"}, "name": {"kind": "observed", "observed_at": "2026-08-28T04:09:09.251831+00:00", "source": "github"}, "platform": {"confidence": null, "enriched_at": "2026-08-29T18:02:50.082662+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "9c660c1d0e05628661419862df860980a3658fbdf418435311aae24b5f8a9556", "fetched_at": "2026-08-28T04:09:09.251831+00:00", "kind": "readme", "missing": false, "url": "https://github.com/cmu-db/bustub"}, {"content_hash": "f5f08a742b3ec11d780ca1c7c6998678ed08e54e2b116259ace3603d35b51ba0", "fetched_at": "2026-08-29T08:57:42.755562+00:00", "kind": "homepage", "missing": false, "url": "https://15445.courses.cs.cmu.edu"}, {"content_hash": "d3b0800f0a64d5032872b42e8f21823304f998e55ae5c984ace9a1a575c43e7d", "fetched_at": "2026-08-29T08:57:42.764495+00:00", "kind": "site_page", "missing": false, "url": "https://15445.courses.cs.cmu.edu/fall2026/faq.html"}], "taxonomy_version": 1}, "pushed_at": {"kind": "observed", "observed_at": "2026-08-28T04:09:09.251831+00:00", "source": "github"}, "repo": {"kind": "observed", "observed_at": "2026-08-28T04:09:09.251831+00:00", "source": "github"}, "stars": {"kind": "observed", "observed_at": "2026-08-28T04:09:09.251831+00:00", "source": "github"}, "tags": {"confidence": null, "enriched_at": "2026-08-29T18:02:50.082662+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "9c660c1d0e05628661419862df860980a3658fbdf418435311aae24b5f8a9556", "fetched_at": "2026-08-28T04:09:09.251831+00:00", "kind": "readme", "missing": false, "url": "https://github.com/cmu-db/bustub"}, {"content_hash": "f5f08a742b3ec11d780ca1c7c6998678ed08e54e2b116259ace3603d35b51ba0", "fetched_at": "2026-08-29T08:57:42.755562+00:00", "kind": "homepage", "missing": false, "url": "https://15445.courses.cs.cmu.edu"}, {"content_hash": "d3b0800f0a64d5032872b42e8f21823304f998e55ae5c984ace9a1a575c43e7d", "fetched_at": "2026-08-29T08:57:42.764495+00:00", "kind": "site_page", "missing": false, "url": "https://15445.courses.cs.cmu.edu/fall2026/faq.html"}], "taxonomy_version": 1}, "topics": {"kind": "observed", "observed_at": "2026-08-28T04:09:09.251831+00:00", "source": "github"}, "urls": {"kind": "observed", "observed_at": "2026-08-28T04:09:09.251831+00:00", "source": "github"}, "use_cases": {"confidence": null, "enriched_at": "2026-08-29T18:02:50.082662+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "9c660c1d0e05628661419862df860980a3658fbdf418435311aae24b5f8a9556", "fetched_at": "2026-08-28T04:09:09.251831+00:00", "kind": "readme", "missing": false, "url": "https://github.com/cmu-db/bustub"}, {"content_hash": "f5f08a742b3ec11d780ca1c7c6998678ed08e54e2b116259ace3603d35b51ba0", "fetched_at": "2026-08-29T08:57:42.755562+00:00", "kind": "homepage", "missing": false, "url": "https://15445.courses.cs.cmu.edu"}, {"content_hash": "d3b0800f0a64d5032872b42e8f21823304f998e55ae5c984ace9a1a575c43e7d", "fetched_at": "2026-08-29T08:57:42.764495+00:00", "kind": "site_page", "missing": false, "url": "https://15445.courses.cs.cmu.edu/fall2026/faq.html"}], "taxonomy_version": 1}, "what_it_is": {"confidence": null, "enriched_at": "2026-08-29T18:02:50.082662+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "9c660c1d0e05628661419862df860980a3658fbdf418435311aae24b5f8a9556", "fetched_at": "2026-08-28T04:09:09.251831+00:00", "kind": "readme", "missing": false, "url": "https://github.com/cmu-db/bustub"}, {"content_hash": "f5f08a742b3ec11d780ca1c7c6998678ed08e54e2b116259ace3603d35b51ba0", "fetched_at": "2026-08-29T08:57:42.755562+00:00", "kind": "homepage", "missing": false, "url": "https://15445.courses.cs.cmu.edu"}, {"content_hash": "d3b0800f0a64d5032872b42e8f21823304f998e55ae5c984ace9a1a575c43e7d", "fetched_at": "2026-08-29T08:57:42.764495+00:00", "kind": "site_page", "missing": false, "url": "https://15445.courses.cs.cmu.edu/fall2026/faq.html"}], "taxonomy_version": 1}, "when_to_avoid": {"confidence": null, "enriched_at": "2026-08-29T18:02:50.082662+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "9c660c1d0e05628661419862df860980a3658fbdf418435311aae24b5f8a9556", "fetched_at": "2026-08-28T04:09:09.251831+00:00", "kind": "readme", "missing": false, "url": "https://github.com/cmu-db/bustub"}, {"content_hash": "f5f08a742b3ec11d780ca1c7c6998678ed08e54e2b116259ace3603d35b51ba0", "fetched_at": "2026-08-29T08:57:42.755562+00:00", "kind": "homepage", "missing": false, "url": "https://15445.courses.cs.cmu.edu"}, {"content_hash": "d3b0800f0a64d5032872b42e8f21823304f998e55ae5c984ace9a1a575c43e7d", "fetched_at": "2026-08-29T08:57:42.764495+00:00", "kind": "site_page", "missing": false, "url": "https://15445.courses.cs.cmu.edu/fall2026/faq.html"}], "taxonomy_version": 1}, "when_to_choose": {"confidence": null, "enriched_at": "2026-08-29T18:02:50.082662+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "9c660c1d0e05628661419862df860980a3658fbdf418435311aae24b5f8a9556", "fetched_at": "2026-08-28T04:09:09.251831+00:00", "kind": "readme", "missing": false, "url": "https://github.com/cmu-db/bustub"}, {"content_hash": "f5f08a742b3ec11d780ca1c7c6998678ed08e54e2b116259ace3603d35b51ba0", "fetched_at": "2026-08-29T08:57:42.755562+00:00", "kind": "homepage", "missing": false, "url": "https://15445.courses.cs.cmu.edu"}, {"content_hash": "d3b0800f0a64d5032872b42e8f21823304f998e55ae5c984ace9a1a575c43e7d", "fetched_at": "2026-08-29T08:57:42.764495+00:00", "kind": "site_page", "missing": false, "url": "https://15445.courses.cs.cmu.edu/fall2026/faq.html"}], "taxonomy_version": 1}}, "score": {"components": {"activity": 99, "longevity": 100, "rhythm": 51}, "computed_at": "2026-09-03T02:20:16.233290+00:00", "flags": [], "formula": "round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)", "inputs": {"age_days": 2549, "days_push": 9, "days_rel": 171, "gap_med": 168.0, "n_releases_24m": 3}, "score": 82, "version": 2}, "staleness": {"enrichment_outdated": false, "low_confidence": false, "scrape_days": 9, "stale_scrape": false}}