# ClickHouse Schema Design and Data Modeling

DevFeed: [ClickHouse Schema Design and Data Modeling](<https://devfeed.tech/articles/clickhouse-schema-design-and-data-modeling-19112.md>)

Original publisher: [Read original article](<https://severalnines.com/blog/clickhouse-schema-design-and-data-modeling/>)

Author: Agus Syafaat

Published: 2026-07-17T12:48:53Z

Content type: article

Language: en

Sources: [SeveralNines](<https://devfeed.tech/sources/severalnines.md>)

Topics: [clickhouse](<https://devfeed.tech/topics/clickhouse.md>), [data-modeling](<https://devfeed.tech/topics/data-modeling.md>), [distributed-systems](<https://devfeed.tech/topics/distributed-systems.md>), [Database](<https://devfeed.tech/topics/database.md>)

Tags: [clickhouse](<https://devfeed.tech/tags/clickhouse.md>), [cta](<https://devfeed.tech/tags/cta.md>), [data-modeling](<https://devfeed.tech/tags/data-modeling.md>), [database-general](<https://devfeed.tech/tags/database-general.md>), [distributed](<https://devfeed.tech/tags/distributed.md>), [distribution](<https://devfeed.tech/tags/distribution.md>), [monitoring](<https://devfeed.tech/tags/monitoring.md>), [production](<https://devfeed.tech/tags/production.md>), [schema](<https://devfeed.tech/tags/schema.md>), [schema-design](<https://devfeed.tech/tags/schema-design.md>)

## AI overview

This article explains how to design and maintain ClickHouse schemas in production. It covers distributed and local tables, shards and replicas, shard-key selection, operational concerns such as slow queries and oversized partitions, monitoring, and schema evolution.

## Source excerpt

Sometimes, we see ClickHouse queries that should normally complete in milliseconds take several seconds to finish or worse, time out entirely. When that happens, there is a good chance that the schema is the real culprit. The problem is often not the query itself, nor is it a hardware bottleneck. Instead, it can stem from [...] The post ClickHouse Schema Design and Data Modeling appeared first on Severalnines.