From 6180fb7358d216af3407a262cabb1b5ce322bd9f Mon Sep 17 00:00:00 2001
From: Weizhen Wang <wangweizhen@pingcap.com>
Date: Wed, 15 Jan 2025 21:23:19 +0800
Subject: [PATCH] statistics: fix the panic when to async load stats with
 dropped index (#58887)

close pingcap/tidb#58865
---
 pkg/statistics/handle/storage/read.go | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/pkg/statistics/handle/storage/read.go b/pkg/statistics/handle/storage/read.go
index e196152d2b..b32d1cff92 100644
--- a/pkg/statistics/handle/storage/read.go
+++ b/pkg/statistics/handle/storage/read.go
@@ -746,6 +746,10 @@ func loadNeededIndexHistograms(sctx sessionctx.Context, is infoschema.InfoSchema
 		return nil
 	}
 	idxInfo := tblInfo.Meta().FindIndexByID(idx.ID)
+	if idxInfo == nil {
+		asyncload.AsyncLoadHistogramNeededItems.Delete(idx)
+		return errors.NotFoundf("index %d in table %d", idx.ID, idx.TableID)
+	}
 	hg, err := HistogramFromStorageWithPriority(sctx, idx.TableID, idx.ID, types.NewFieldType(mysql.TypeBlob), hgMeta.NDV, 1, hgMeta.LastUpdateVersion, hgMeta.NullCount, hgMeta.TotColSize, hgMeta.Correlation, kv.PriorityHigh)
 	if err != nil {
 		return errors.Trace(err)