# ClickHouse at FOSDEM 2025: talks, tech, and a community dinner

DevFeed: [ClickHouse at FOSDEM 2025: talks, tech, and a community dinner](<https://devfeed.tech/articles/clickhouse-at-fosdem-2025-talks-tech-and-a-community-dinner-5071.md>)

Original publisher: [Read original article](<https://clickhouse.com/blog/clickhouse-at-fosdem-2025>)

Author: Tyler Hannan

Published: 2025-02-25T15:08:26Z

Content type: article

Language: en

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

Topics: [clickhouse](<https://devfeed.tech/topics/clickhouse.md>), [JSON](<https://devfeed.tech/topics/json.md>), [Fuzzing/Fuzz testing](<https://devfeed.tech/topics/fuzzing.md>), [Databases](<https://devfeed.tech/topics/databases.md>), [Testing](<https://devfeed.tech/topics/testing.md>), [Open Source](<https://devfeed.tech/topics/open-source.md>)

Tags: [2025](<https://devfeed.tech/tags/2025.md>), [clickhouse](<https://devfeed.tech/tags/clickhouse.md>), [community](<https://devfeed.tech/tags/community.md>), [databases](<https://devfeed.tech/tags/databases.md>), [deep-dive](<https://devfeed.tech/tags/deep-dive.md>), [developers](<https://devfeed.tech/tags/developers.md>), [fosdem](<https://devfeed.tech/tags/fosdem.md>), [fuzzing](<https://devfeed.tech/tags/fuzzing.md>), [json](<https://devfeed.tech/tags/json.md>), [open-source](<https://devfeed.tech/tags/open-source.md>), [tech](<https://devfeed.tech/tags/tech.md>), [testing](<https://devfeed.tech/tags/testing.md>)

## AI overview

A recap of ClickHouse's presence at FOSDEM 2025, covering a talk on its new powerful JSON data type and another on the challenges of fuzzing databases. The JSON presentation discusses column-oriented storage, dynamically changing structures, and fast querying of individual JSON paths.

## Source excerpt

This year, ClickHouse made a strong showing at FOSDEM 2025, with several team members traveling to Belgium and multiple talks covering everything from powerful new JSON data types to the challenges of fuzzing databases.