All external sources
| Context | Source function | Purpose | Mapping function | Use Case |
|---|---|---|---|---|
| Offline | - | Maps to database tables | EXTERNAL_SQL() | Batch processing of full tables |
| Online | SOURCE_JDBC() or SOURCE_REDIS() | Maps to database tables | EXTERNAL_VIEW() | Map to JDBC or redis tables |
| Online | SOURCE_REDIS() | Maps to KV data stored in Redis | EXTERNAL_REDIS() or EXTERNAL_VIEW() | Fast key-based lookups in Redis |
| Online | SOURCE_JDBC() | Maps to KV data stored in databases | EXTERNAL_JDBC() or EXTERNAL_VIEW() | Fast key-based lookups in DB |
| Online | SOURCE_HTTP() | Maps to REST APIs and microservices | EXTERNAL_HTTP() | Integration with external resources or microservices |