Why agent memory needs more than a vector store
Long-term memory for agents usually mixes exact facts with fuzzy recall. User profiles, task state, tool results, and audit trails fit naturally in SQL tables, while semantic retrieval benefits from vector search.
TiDB Cloud Zero is useful when you want both patterns in the same backend instead of stitching together a separate vector store, cache, and relational database before the idea is even proven.
- Session memory and user preferences
- Tool invocation logs and structured state
- Semantic lookup over embeddings
- Text lookup over notes, prompts, or transcripts