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Hybrid Postgres and ClickHouse Stack for AI Applications

For AI systems, using Postgres for transactions and ClickHouse for analytics is becoming the standard due to the explosive growth in data volumes.

Compiled by Sergey KostenchukPublished 2026-07-19Updated 2026-07-20

2026-07-19 Coding

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Why AI needs a data layer built on Postgres and ClickHouse Source

💻 The hybrid Postgres and ClickHouse stack is becoming the standard for AI

For AI applications, it is becoming norm to use a combination of Postgres for transactions (OLTP) and ClickHouse for analytics (OLAP). The AI-native environment is causing an explosion in data growth (averaging >1000% over 6 months).

🌍 Separating OLTP and OLAP is critical for scaling AI agents and systems with massive volumes of logs and prompts.

👤 Developers should transition to hybrid architectures to ensure transactional reliability and instantaneous analytics.

Source 1: https://clickhouse.com/blog/ai-best-of-breed-data-stack

Sources

clickhouse.com