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Search and query
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This capability is a part of Redis Stack
Search and query
Searching and querying Redis data
The enhanced Redis experience with Redis Stack provides querying capabilities, secondary indexing, full-text search, vector similarity search, and more. To use these features, you first declare indices on your Redis data and then use the query language to retrieve the data asset that your application requires. All future data will also be indexed automatically. Quick links Quick start guide Source code Latest release Docker image Primary featuresWe support the following search an query features: Secondary indexing Multi-field queries Aggregation Full-text indexing of multiple fields in a document Incremental indexing without performance loss Document ranking (provided manually by the user at index time) Boolean queries with AND, OR, NOT operators between subqueries Optional query clauses Prefix-based searches Field weights Auto-complete suggestions (with fuzzy prefix suggestions) Exact phrase search and slop-based search Stemming-based query expansion for many languages (using Snowball) Support for custom functions for query expansion and scoring (see Extensions) Numeric filters and ranges Geofiltering using Redis geo commands Vector similarity search for semantic search using exact and approximate algorithms Unicode support (UTF-8 input required) Retrieval of full document contents or only their IDs Document deletion and updating with index garbage collection JSON documentsWhen combined with the Redis JSON module, (included with Redis Stack) Redis can index and query JSON documents. To learn how to search and query your JSON documents, see Indexing JSON documents. Cluster supportThe search and query features of Redis Stack are also available for distributed databases that can scale to billions of documents and hundreds of servers. Commercial supportCommercial support for Redis Stack is provided by Redis Ltd. See the Redis Ltd. website for more details and contact information. Supported platformsRedis Stack is developed and tested on Linux and macOS on x86_64 CPUs. Atom CPUs are not supported. References Videos RediSearch? - RedisConf 2020 RediSearch Overview - RedisConf 2019 RediSearch & CRDT - Redis Day Tel Aviv 2019 Course RU203: Querying, Indexing, and Full-Text Search - An online Search and Query course from Redis University. Blog posts Introducing RediSearch 2.0 Getting Started with RediSearch 2.0 Mastering RediSearch / Part I Mastering RediSearch / Part II Mastering RediSearch / Part III1. Building Real-Time Full-Text Site Search with RediSearch RediSearch Version 1.6 Adds Features, Improves Performance RediSearch 1.6 Boosts Performance Up to 64% Mailing list / forumGot questions? Feel free to ask at the Search and Query forum. LicenseRedis Source Available License 2.0 (RSALv2) or the Server Side Public License v1 (SSPLv1) - see LICENSE |
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