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## Problem As part of the reldirv2 rollout: LKB-197. We will use number of db/rels as a criteria whether to rollout reldirv2 directly on the write path (simplest and easiest way of rollout). If the number of rel/db is small then it shouldn't take too long time on the write path. ## Summary of changes * Compute db/rel count during basebackup. * Also compute it during logical size computation. * Collect maximum number of db/rel across all timelines in the feature flag propeties. --------- Signed-off-by: Alex Chi Z <chi@neon.tech>