Tinybird is launching a beta for lightweight deletes on Data Sources via a new API endpoint (`POST /v1/datasources/{name}/delete`). Unlike the old heavy mutation approach that rewrites disk parts, the new method uses ClickHouse's native lightweight DELETE, which materializes a hidden `_row_exists` mask instead of copying data. This makes deletes complete in milliseconds to seconds rather than minutes or hours. The endpoint supports both synchronous and asynchronous modes, an optional partition-scoping parameter, and is useful for GDPR right-to-be-forgotten requests, removing bad ingest data, and partition-scoped cleanups.
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How Tinybird deletes used to workA new lightweight delete insteadSync or async, your callWhen does it come handyTry it5.1K Impressions