# ClickHouse gets lazier (and faster): Introducing lazy materialization

DevFeed: [ClickHouse gets lazier (and faster): Introducing lazy materialization](<https://devfeed.tech/articles/clickhouse-gets-lazier-and-faster-introducing-lazy-materialization-5099.md>)

Original publisher: [Read original article](<https://clickhouse.com/blog/clickhouse-gets-lazier-and-faster-introducing-lazy-materialization>)

Author: Tom Schreiber

Published: 2025-04-22T00:00:00Z

Content type: article

Language: en

Sources: [ClickHouse Blog](<https://devfeed.tech/sources/clickhouse-blog.md>)

Topics: [data](<https://devfeed.tech/topics/data.md>)

Tags: [analytics](<https://devfeed.tech/tags/analytics.md>), [clickhouse](<https://devfeed.tech/tags/clickhouse.md>), [databases](<https://devfeed.tech/tags/databases.md>), [optimization](<https://devfeed.tech/tags/optimization.md>), [performance](<https://devfeed.tech/tags/performance.md>), [sql](<https://devfeed.tech/tags/sql.md>), [storage](<https://devfeed.tech/tags/storage.md>)

## AI overview

ClickHouse introduces lazy materialization, an optimization that delays reading column data until it is needed to reduce I/O and speed up queries.

## Source excerpt

ClickHouse learned to procrastinate strategically. Discover how lazy materialization skips unnecessary column reads to accelerate queries.