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MyScale

by MyScale Inc.

System Card

OrganizationMyScale Inc.
Released2023-06
Architecturevector-rag / SQL-native vector database on ClickHouse
DetailsMyScaleDB is a fork of ClickHouse augmented with the MSTG (Multi-Scale Tree Graph) vector index, allowing SQL queries to combine relational predicates and ANN vector search in a single statement. This eliminates the dual-database pattern of maintaining a separate vector store alongside a relational DB. It supports hybrid search, full-text search, and maintains 98.5% recall under heavy metadata filtering.
Parameters—
Domainrag-retrieval
Open SourceYes
WebsiteVisit
SQLClickHouserelational-vectorhybridMSTG

Capability Profile

Benchmark Scores

5 of 14 benchmarks
Long-Context Retrieval
2/5
RULER
69.539p
NIAH
no data
LooGLE
no data
LongBench
603p
∞Bench
no data
Multi-Turn Recall
0/2
LoCoMo
no data
MemoryBank
no data
Cross-Session Memory
0/1
LongMemEval
no data
Multi-Hop QA
2/3
BABILong
no data
MultiHop-RAG
64.119p
HotpotQA
6219p
Agent Task Memory
0/1
AgentBench-Mem
no data
Personalization
0/1
PerLTQA
no data
Factuality / Grounding
1/1
RAGAS
64.721p
Sources:MyScale vendor documentation; evaluated on HotpotQA: A Dataset for Diverse, Explainable Multi-hop Question Answering (Stanford / CMU, 1809)MyScale vendor documentation; evaluated on LongBench: A Bilingual, Multitask Benchmark for Long Context Understanding (Tsinghua KEG, 2308)MyScale vendor documentation; evaluated on MultiHop-RAG: Benchmarking Retrieval-Augmented Generation for Multi-Hop Queries (HKUST, 2401)MyScale vendor documentation; evaluated on RAGAS: Automated Evaluation of Retrieval-Augmented Generation (Exploding Gradients, 2309)MyScale vendor documentation; evaluated on RULER: What's the Real Context Size of Your Long-Context Language Models (NVIDIA, 2404)