DuckDB is a high-performance analytical database system
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The AI-native database built for LLM applications, providing incredibly fast hybrid search of dense vector, sparse vector, tensor (multi-vector), and full-text.
- ai-native
- nearest-neighbor-search
- rag
- vector-search
Transactional schema-less embedded database used by JetBrains YouTrack and JetBrains Hub.
- embedded-database
- java
- kotlin
- key-value
pickleDB is an in memory key-value store using Python's orjson module for persistence. It can also use SQLite instead of orjson if needed.
- python
- python3
- pickledb
- database
ZoneTree is a persistent, high-performance, transactional, ACID-compliant ordered key-value database and LSM-tree storage engine for .NET.
- lsm-tree
- key-value-store
- atomicity
- consistency
An experimental embedded SQL engine in C++20. Query Parquet, CSV, JSON, Arrow, Avro, SQLite, and Excel files directly with SQL, in-process. Early-stage.
StringDB is a modular, key/value pair archival DB designed to consume *tiny* amounts of ram & produce *tiny* databases.
- stringdb
- database
- lightweight
- easy-to-use