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cost-based-optimizer

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YheChen / ChenDB

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Relational database engine built from scratch in Python: slotted-page storage, disk-backed B+ trees, a cost-based optimizer, ARIES write-ahead recovery and MVCC. Differentially tested against SQLite.

react python typescript sql database storage-engine mvcc dbms webassembly transactions database-engine aries buffer-pool query-optimizer b-plus-tree write-ahead-log differential-testing pyodide crash-recovery cost-based-optimizer
  • Updated Aug 21, 2026
  • Python

projects-hacks / relokit

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Ask for a place in one sentence and every requirement is checked against the source that actually holds it. A cost based query planner over SerpApi with a Xano backend, that tells you what it could not confirm instead of guessing.

react real-estate typescript pwa hackathon provenance local-search relocation api-integration place-search vite zod query-planner serpapi pnpm-workspace maplibre vitest xano apartment-search cost-based-optimizer
  • Updated Sep 2, 2026
  • TypeScript

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