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Data retention: what to keep, what to delete

Automated rolling purges keep ClickHouse indexes lean and guarantee compliance with GDPR storage limitation mandates.

Tracabit team5 min read
A calendar of days where the oldest weeks are dashed outlines and today is blue.

Data minimization is not just a legal requirement under GDPR Article 5; it is the secret to blazing fast analytical queries.

By setting automated rolling retention schedules (e.g. 1 year for free starter tiers, 2 years for Pro), ClickHouse partitions are rotated out cleanly without manual table maintenance.

Every purge generates a cryptographically signed SHA-256 audit log, giving compliance officers undeniable proof of automated data hygiene.

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