v.25.11Improvement

Introduce TTL DROP merge type, and do

Official CH changelog text
Introduce the TTL DROP merge type, and do not update the next delete TTL merge schedule after this kind of merges. #90077 (Mikhail Artemenko).
Introduced a new TTL merge type called DROP that allows merges triggered by TTL to drop data without updating the next delete TTL merge schedule.

Why it matters

This feature addresses the issue where updating the next delete TTL merge schedule after a TTL DROP merge was unnecessary and inefficient. By not updating the schedule after these merges, the system optimizes TTL-based data deletion and reduces overhead.

How to use it

Users can utilize the new TTL DROP merge type by defining TTL rules that trigger data dropping merges. The system will automatically handle merges of this type without updating the next delete TTL merge schedule.

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