SurrealDB

1. What is SurrealDB

   Multi-model database combining document, graph, relational, vector and time-series.

2. Architecture

   Storage engines, layers and deployment architecture.

3. Data Models

   Document, graph, relational, vector, full-text and time-series models.

4. Graph Model

   Record links and RELATE graph edges.

5. SurrealQL

   Query language statements, data types, operators and functions.

6. Indexes

   Defining standard, unique, full-text and vector indexes.

7. Transactions

   ACID transactions in SurrealQL.

8. Live Queries

   Real-time change notifications with LIVE SELECT.

9. Events

   Triggers that run on record changes.

10. Vector and Full-Text Search

    Vector search and full-text search.

11. Authentication

    System users, record users and access methods.

12. Capabilities and Security

    Authorization, permissions and capability flags.

13. Deployment

    Embedded, single-node and distributed (TiKV) deployment.

14. SDKs

    Client SDKs and connection protocols.

Each section links to the official page. Titles and summaries by Extra Credit; the docs belong to their authors.