Custom Metric Definition With Schema Based Validation

via “collection schema definition with type-safe metadata”

A lightweight, lightning-fast, in-process vector database

Unique: Provides declarative schema definition with type validation at collection creation time, enabling early error detection and enabling runtime schema introspection for dynamic query construction, while supporting optional indexing of metadata fields for efficient filtering

vs others: More type-safe than schemaless systems (Milvus dynamic schema) because it enforces types at collection creation, while more flexible than fixed-schema databases because metadata fields are optional and can be added per document