From bd84570b4ce76593361c88af5fb0469a6a3ce679 Mon Sep 17 00:00:00 2001
From: bz0 <bz0@oceanbase.com>
Date: Thu, 29 Jul 2021 22:12:13 +0800
Subject: [PATCH] =?UTF-8?q?fix=20bug=20that=20is=20not=20check=20whether?=
 =?UTF-8?q?=C2=A0dimensional=20pointer=20is=20null?=
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---
 src/share/schema/ob_part_mgr_util.h | 11 +++++++++--
 1 file changed, 9 insertions(+), 2 deletions(-)

diff --git a/src/share/schema/ob_part_mgr_util.h b/src/share/schema/ob_part_mgr_util.h
index 5df4b69abc..40400fa929 100644
--- a/src/share/schema/ob_part_mgr_util.h
+++ b/src/share/schema/ob_part_mgr_util.h
@@ -445,10 +445,17 @@ int ObPartIdsGeneratorForAdd<T>::gen(common::ObIArray<int64_t>& part_ids)
     max_used_part_id = table_.get_part_option().get_part_num() - 1;
   }
   for (int64_t i = 0; OB_SUCC(ret) && i < inc_part_num; ++i) {
-    ObPartition* part = part_array[i];
     if (PARTITION_LEVEL_TWO == part_level) {
       if (!table_.is_sub_part_template()) {
-        if (OB_ISNULL(part)) {
+        ObPartition* part = NULL;
+        if (OB_ISNULL(part_array)) {
+          ret = common::OB_ERR_UNEXPECTED;
+          SHARE_LOG(WARN, "Empty partition", KR(ret), K(table_));
+        } else {
+          part = part_array[i];
+        }
+        if (OB_FAIL(ret)) {
+        } else if (OB_ISNULL(part)) {
           ret = common::OB_ERR_UNEXPECTED;
           SHARE_LOG(WARN, "part_array[i] is null", KR(ret), K(i));
         } else {