FIX UT

pingcap · Feb 19, 2021 · 55ac45f · 55ac45f
1 parent 9933126
commit 55ac45f
Showing 1 changed file with 3 additions and 0 deletions.
diff --git a/statistics/handle/handle.go b/statistics/handle/handle.go
@@ -386,6 +386,9 @@ func (h *Handle) MergePartitionStats2GlobalStats(sc *stmtctx.StatementContext, i
 		var popedTopN []statistics.TopNMeta
 		n := uint32(0)
 		for _, topN := range allTopN[i] {
+			if topN == nil {
+				continue
+			}
 			n = mathutil.MaxUint32(n, uint32(len(topN.TopN)))
 		}
 		globalStats.TopN[i], popedTopN = statistics.MergeTopN(allTopN[i], n)