typo-tolerant full-text search with adaptive radix tree indexing
Implements fuzzy matching and typo tolerance using an Adaptive Radix Tree (ART) data structure that enables memory-efficient prefix and fuzzy matching across indexed text fields. The ART index is maintained in-memory for fast reads while persisted to RocksDB for durability, allowing sub-50ms query latency even with spelling variations. Queries automatically expand to include typo variants without requiring explicit configuration.
Unique: Uses Adaptive Radix Tree (ART) instead of traditional B-tree or hash-based indexes, providing memory efficiency and native support for prefix/fuzzy queries without separate trie layers. Typo tolerance is built into the core indexing strategy rather than applied as a post-processing filter.
vs alternatives: Faster typo-tolerant search than Elasticsearch (which requires Levenshtein distance plugins) and more memory-efficient than Algolia's proprietary approach, with sub-50ms latency on commodity hardware.
vector similarity search with semantic embeddings
Supports dense vector search by storing and indexing embedding vectors alongside document fields, enabling semantic similarity queries beyond keyword matching. Integrates with ONNX Runtime for optional on-device embedding generation, allowing documents and queries to be embedded without external API calls. Vector search results can be combined with keyword filters and facets in a single query.
Unique: Integrates ONNX Runtime for optional on-device embedding generation, eliminating external API dependencies for vector computation. Allows hybrid queries combining vector similarity with keyword filters and facets in a single request, rather than requiring separate search pipelines.
vs alternatives: Simpler integration than Pinecone or Weaviate for teams wanting vector search without external vector DBs; lower latency than cloud-based embedding APIs due to local ONNX inference, though less scalable than ANN-based systems for very large corpora.
geospatial point-in-polygon and distance-based filtering
Supports geopoint fields for storing latitude/longitude coordinates and enables distance-based filtering (e.g., find results within 10km of a location) and polygon-based filtering (e.g., find results within a geographic boundary). Geospatial queries are evaluated during search using spatial indexing, and results can be sorted by distance. Integrates with standard GeoJSON formats.
Unique: Integrates geospatial filtering directly into the search pipeline, supporting both distance-based and polygon-based queries. Uses standard GeoJSON format for geographic data.
vs alternatives: Simpler geospatial API than PostGIS or Elasticsearch; native support for distance sorting without separate aggregations; no external spatial database required.
document sorting and ranking by multiple fields
Enables sorting search results by one or more fields (text, numeric, date) in ascending or descending order, with support for relevance-based ranking (BM25 or vector similarity scores). Sorting is applied after filtering and faceting, and results are paginated using offset/limit parameters. Multi-field sorting allows complex ranking strategies (e.g., sort by relevance, then by date, then by rating).
Unique: Supports multi-field sorting with relevance-based ranking (BM25 or vector similarity), allowing complex ranking strategies in a single query. Sorting is integrated into the search pipeline rather than applied post-hoc.
vs alternatives: More flexible than Elasticsearch's default relevance ranking; simpler API than Solr's function queries; native support for both keyword and semantic relevance in sorting.
batch document indexing and bulk operations
Supports bulk indexing of multiple documents in a single API request, reducing HTTP overhead and improving throughput for large-scale data imports. Bulk operations are processed in batches and persisted to RocksDB atomically, ensuring consistency. Supports both insert and update operations in a single batch request.
Unique: Supports bulk indexing with atomic persistence to RocksDB, reducing HTTP overhead and improving throughput. Batch operations are processed in-memory before being persisted.
vs alternatives: Simpler bulk API than Elasticsearch (no need for newline-delimited JSON); more efficient than single-document indexing for large imports; native support for both insert and update in same batch.
real-time analytics and event tracking
Tracks search queries, user interactions, and system events through an Analytics component, enabling real-time insights into search behavior and system performance. Events are collected asynchronously and can be exported for analysis. Supports custom event tracking for application-specific metrics.
Unique: Integrates real-time event tracking into the search engine, collecting analytics asynchronously without impacting query latency. Supports custom event tracking for application-specific metrics.
vs alternatives: More integrated than external analytics tools; simpler than Elasticsearch's monitoring stack; no additional infrastructure required for basic analytics.
multi-field faceted filtering and aggregation
Enables drill-down filtering across multiple document fields with automatic aggregation of result counts per facet value. Facets are computed during search by maintaining inverted indexes per field, allowing fast computation of value distributions without post-processing. Supports hierarchical faceting and numeric range facets alongside categorical facets.
Unique: Facet computation is integrated into the core search pipeline using inverted indexes per field, rather than computed post-search. Supports both categorical and numeric range facets with automatic cardinality-aware optimization.
vs alternatives: Faster facet computation than Elasticsearch (which requires separate aggregation queries) and more intuitive API than Solr's faceting parameters; built-in support for numeric ranges without manual bucketing.
schema-based json document indexing with field-level configuration
Enforces explicit schema definition for collections, where each field specifies type (string, int, float, bool, geopoint, object), indexing behavior (indexed, sortable, facetable), and optional parameters like tokenization strategy. Documents are validated against schema at index time, and fields are indexed according to their configuration using specialized index structures (ART for strings, NumericTrie for ranges, etc.). Schema changes require explicit migration.
Unique: Enforces explicit schema definition with per-field indexing configuration (indexed, sortable, facetable flags), allowing fine-grained control over index structures. Uses specialized index types per field (ART for strings, NumericTrie for ranges) rather than generic inverted indexes.
vs alternatives: More explicit and type-safe than Elasticsearch's dynamic mapping; simpler schema management than Solr with sensible defaults; prevents accidental indexing of unnecessary fields, reducing memory overhead.
+6 more capabilities