# Selective data deletion: a new feature for data quality management

DevFeed: [Selective data deletion: a new feature for data quality management](<https://devfeed.tech/articles/selective-data-deletion-a-new-feature-for-data-quality-management-18651.md>)

Original publisher: [Read original article](<https://www.tinybird.co/blog/selective-data-deletion>)

Author: Jorge Sancha

Published: 2020-08-27T00:00:00Z

Content type: article

Language: en

Sources: [Tinybird](<https://devfeed.tech/sources/tinybird.md>)

Topics: [clickhouse](<https://devfeed.tech/topics/clickhouse.md>), [Data Quality](<https://devfeed.tech/topics/data-quality.md>)

Tags: [clickhouse](<https://devfeed.tech/tags/clickhouse.md>), [data-quality](<https://devfeed.tech/tags/data-quality.md>), [data-quality-management](<https://devfeed.tech/tags/data-quality-management.md>), [new-feature](<https://devfeed.tech/tags/new-feature.md>), [product-updates](<https://devfeed.tech/tags/product-updates.md>)

## AI overview

The article discusses selective data deletion in ClickHouse, noting that incorrect deletion methods can reduce performance and presenting an approach intended to avoid that problem.

## Source excerpt

Selective data deletion in ClickHouse is tricky. Delete the wrong way and performance tanks. Here's the approach that actually works.