From 4c78ce6e3f2b6a18e7ca947bb0c0b467292c47ee Mon Sep 17 00:00:00 2001
From: John Guo <john@johng.cn>
Date: Tue, 2 Mar 2021 23:27:50 +0800
Subject: [PATCH] fix issue #1187

---
 database/gdb/gdb_type_result_scanlist.go | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/database/gdb/gdb_type_result_scanlist.go b/database/gdb/gdb_type_result_scanlist.go
index b18f23891..521c32b04 100644
--- a/database/gdb/gdb_type_result_scanlist.go
+++ b/database/gdb/gdb_type_result_scanlist.go
@@ -272,6 +272,10 @@ func (r Result) ScanList(listPointer interface{}, bindToAttrName string, relatio
 					return gerror.Newf(`invalid relation specified: "%v"`, relationKV)
 				}
 			} else {
+				if i >= len(r) {
+					// There's no relational data.
+					continue
+				}
 				v := r[i]
 				if v == nil {
 					// There's no relational data.
@@ -300,6 +304,10 @@ func (r Result) ScanList(listPointer interface{}, bindToAttrName string, relatio
 					return gerror.Newf(`invalid relation specified: "%v"`, relationKV)
 				}
 			} else {
+				if i >= len(r) {
+					// There's no relational data.
+					continue
+				}
 				relationDataItem := r[i]
 				if relationDataItem == nil {
 					// There's no relational data.