Announcing aggregations on Amazon ElastiCache

This article announces aggregation query support for Amazon ElastiCache, enabling real-time data filtering, grouping, and summarization directly in-memory without separate analytics layers.

• Aggregations filter, group, transform, and summarize data in single queries with microsecond latencies
• Available in ElastiCache version 9.0 for Valkey at no additional cost
• Supports chaining stages: GROUPBY, REDUCE, APPLY, FILTER, SORTBY, LIMIT into analytical pipelines
• Enables faceted catalog browsing, real-time leaderboards, and operational reporting use cases
• Provides read-after-write consistency on primaries with automatic scaling across shards
• Includes full-text, exact-match, range, and vector search capabilities
• Valkey 9.0 adds hash field expiration and 40% higher pipelined throughput

ElastiCache aggregations eliminate the need for separate analytics infrastructure by running computations server-side, returning only final summaries to applications.