From c5bf45f1aef22665f1204699ad7d14cf16b98aa9 Mon Sep 17 00:00:00 2001
From: qinyuguang <qinyuguang@meican.com>
Date: Wed, 13 Apr 2022 21:49:08 +0800
Subject: [PATCH] fix issue #1755

---
 database/gdb/gdb_model_cache.go | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/database/gdb/gdb_model_cache.go b/database/gdb/gdb_model_cache.go
index dac5040db..d63eb4d74 100644
--- a/database/gdb/gdb_model_cache.go
+++ b/database/gdb/gdb_model_cache.go
@@ -86,9 +86,13 @@ func (m *Model) getSelectResultFromCache(ctx context.Context, sql string, args .
 		if cacheItem, ok = v.Val().(*selectCacheItem); ok {
 			// In-memory cache.
 			return cacheItem.Result, nil
-		} else if err = json.UnmarshalUseNumber(v.Bytes(), &cacheItem); err != nil {
+		} else {
 			// Other cache, it needs conversion.
-			return nil, err
+			err = json.UnmarshalUseNumber(v.Bytes(), &cacheItem)
+			if err != nil {
+				return nil, err
+			}
+			return cacheItem.Result, nil
 		}
 	}
 	return