Time series
Ingest and query time series data with Redis Redis Stack (specifically, its RedisTimeSeries module) adds a time series data structure to Redis. Features High volume inserts, low latency reads Query by start time and end-time Aggregated queries (min, max, avg, sum, range, count, first, last, STD.P, STD.S, Var.P, Var.S, twa) for any time bucket Configurable maximum retention period Compaction for au
Understand Redis data types
Overview of data types supported by Redis Redis is a data structure server. At its core, Redis provides a collection of native data types that help you solve a wide variety of problems, from caching to queuing to event processing. Below is a short description of each data type, with links to broader overviews and command references. If you'd like to try a comprehensive tutorial for each data struc
Redis patterns example
Learn several Redis patterns by building a Twitter clone This article describes the design and implementation of a very simple Twitter clone written using PHP with Redis as the only database. The programming community has traditionally considered key-value stores as a special purpose database that couldn't be used as a drop-in replacement for a relational database for the development of web applic
Redis Licensing Overview - Redis
FAQs Why are you offering a dual license strategy? We believe the permissive approach of RSALv2 and the standard wording we use to define its limitations solves many of the challenges raised by our community, but we are also aware that, like any newly created license, it will take time for some users (and their legal teams) to digest it and therefore we’ve added an option to use SSPL. Created by M
Redis Streams
Introduction to Redis streams A Redis stream is a data structure that acts like an append-only log but also implements several operations to overcome some of the limits of a typical append-only log. These include random access in O(1) time and complex consumption strategies, such as consumer groups. You can use streams to record and simultaneously syndicate events in real time. Examples of Redis s
Redis Graph - a graph database module for Redis
RedisGraph is the first queryable Property Graph database to use sparse matrices to represent the adjacency matrix in graphs and linear algebra to query the graph. Primary features Based on the Property Graph Model Nodes (vertices) and Relationships (edges) that may have attributes Nodes that can be labeled Relationships have a relationship type Graphs represented as sparse adjacency matrices Cyph
RediSearch Documentation
Searching and querying Redis data Redis Stack offers an enhanced Redis experience via the following search and query features: A rich query language Incremental indexing on JSON and hash documents Vector search Full-text search Geospatial queries Aggregations You can find a complete list of features in the reference documentation. The search and query features of Redis Stack allow you to use Redis
EVAL
EVAL script numkeys [key [key ...]] [arg [arg ...]] Available since: 2.6.0 Time complexity: Depends on the script that is executed. ACL categories: @slow, @scripting, Invoke the execution of a server-side Lua script. The first argument is the script's source code. Scripts are written in Lua and executed by the embedded Lua 5.1 interpreter in Redis. The second argument is the number of input key na
Using pipelining to speedup Redis queries
How to optimize round-trip times by batching Redis commands Redis pipelining is a technique for improving performance by issuing multiple commands at once without waiting for the response to each individual command. Pipelining is supported by most Redis clients. This document describes the problem that pipelining is designed to solve and how pipelining works in Redis. Request/Response protocols an
Protocol specification – Redis
Simple strings Simple strings are encoded as a plus (+) character, followed by a string. The string mustn't contain a CR (\r) or LF (\n) character and is terminated by CRLF (i.e., \r\n). Simple strings transmit short, non-binary strings with minimal overhead. For example, many Redis commands reply with just "OK" on success. The encoding of this Simple String is the following 5 bytes: +OK\r\n When
ZADD
ZADD key [NX | XX] [GT | LT] [CH] [INCR] score member [score member ...] Available since: 1.2.0 Time complexity: O(log(N)) for each item added, where N is the number of elements in the sorted set. ACL categories: @write, @sortedset, @fast, Adds all the specified members with the specified scores to the sorted set stored at key. It is possible to specify multiple score / member pairs. If a specifie
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SADD – Redis
Redis Enterprise Cloud - Redis
HMGET
SMEMBERS
ZINCRBY
ZREMRANGEBYSCORE
ZREVRANGE
ZCOUNT
ZSCORE