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The Open-Source Database Squeeze: Why MongoDB, Elastic, and Redis Are All Defending Different Walls in 2026

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The Open-Source Database Squeeze: Why MongoDB, Elastic, and Redis Are All Defending Different Walls in 2026

MongoDB, Elastic, and Redis each face a different 2026 squeeze: Postgres pgvector, OpenSearch maturity, and Valkey. Only one has a durable moat.

14 May 2026 11 min read

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