statistics: kill in time when to run topnStatsMergeWorker and remove …

…useless Signed-off-by: Weizhen Wang <wangweizhen@pingcap.com>
pingcap · Aug 2, 2023 · 58bc4d4 · 58bc4d4
1 parent c8246aa
commit 58bc4d4
Showing 1 changed file with 0 additions and 1 deletion.
diff --git a/statistics/merge_worker.go b/statistics/merge_worker.go
@@ -99,7 +99,6 @@ func (worker *topnStatsMergeWorker) Run(timeZone *time.Location, isIndex bool,
  return
  }
  partNum := len(allTopNs)
- checkNum := len(checkTopNs)
  removeVals := make([][]TopNMeta, partNum)
  // Different TopN structures may hold the same value, we have to merge them.
  counter := make(map[hack.MutableString]float64)