website/content/docs/7.1/reference/query-layers.md

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Query Layers	Extend TiKV using stateless query layers	7.1 parent weight identifier Reference-7.1 2 Query Layers-7.1

TiKV works as storage engines for the following projects:

• TiDB (MySQL)
• Zetta (Table Store & HBase)
• Tidis (Redis)
• Titan (Redis)
• Titea (Redis)
• TiPrometheus (Prometheus)