docs(historian): #680 lane B review — QuestDB data-range lookups are partition scans, both-direction gate, all-Bad Count 0x80000401, outage-last parity test, CLAUDE.md per-sample bullet

2026-10-11 16:39:39 -04:00
parent b8344bb151
commit b5e3e5108c
5 changed files with 58 additions and 11 deletions
@@ -495,7 +495,7 @@ public sealed class QuestDbHistorianDataSource : IHistorianDataSource
                        rows.Add(ReadBucket(reader, family));
                }
                // The tag's data range (earliest + latest live sample): the start/end-of-data Partial rules (#677/#680 —
-                // forward reads of an aggregate other than Average) and Count's in-range empty interval (#680); skipped
+                // any per-sample aggregate but Average, either direction) and Count's in-range empty interval (#680); skipped
                // otherwise.
                if (AggregateEvaluator.NeedsDataRange(aggregate, plan))
                {