diff --git a/src/sql/engine/expr/ob_expr_to_outfile_row.cpp b/src/sql/engine/expr/ob_expr_to_outfile_row.cpp
index a72eef2134..3b7a965870 100644
--- a/src/sql/engine/expr/ob_expr_to_outfile_row.cpp
+++ b/src/sql/engine/expr/ob_expr_to_outfile_row.cpp
@@ -253,9 +253,9 @@ int ObExprToOutfileRow::print_field(char *buf, const int64_t buf_len, int64_t &p
       if (wchar == '\0') {
         OZ(out_info.escape_.print_plain_str_literal(buf, buf_len, pos, out_info.print_params_));
         OZ(print_wchar_to_buf(buf, buf_len, pos, '0', out_info.print_params_.cs_type_));
-      } else if (wchar == out_info.wchar_enclose_ || wchar == out_info.wchar_escape_) {
-        OZ(out_info.escape_.print_plain_str_literal(buf, buf_len, pos, out_info.print_params_));
-        OZ(copy_string_to_buf(buf, buf_len, pos, code_point));
+      } else if (wchar == out_info.wchar_enclose_ || wchar == out_info.wchar_escape_) {
+        OZ(out_info.escape_.print_plain_str_literal(buf, buf_len, pos, out_info.print_params_));
+        OZ(copy_string_to_buf(buf, buf_len, pos, code_point));
       } else if (!need_enclose && (wchar == out_info.wchar_field_ ||
                                    wchar == out_info.wchar_line_)) {
         OZ(out_info.escape_.print_plain_str_literal(buf, buf_len, pos, out_info.print_params_));
diff --git a/src/storage/ddl/ob_ddl_redo_log_replayer.cpp b/src/storage/ddl/ob_ddl_redo_log_replayer.cpp
index 2a2cae7005..892b85deec 100644
--- a/src/storage/ddl/ob_ddl_redo_log_replayer.cpp
+++ b/src/storage/ddl/ob_ddl_redo_log_replayer.cpp
@@ -58,7 +58,6 @@ int ObDDLRedoLogReplayer::replay_start(const ObDDLStartLog &log, const int64_t l
   ObITable::TableKey table_key = log.get_table_key();
   ObDDLKvMgrHandle ddl_kv_mgr_handle;
   bool need_replay = true;
-  LOG_INFO("start to replay ddl start log", K(log));
   if (OB_UNLIKELY(!is_inited_)) {
     ret = OB_NOT_INIT;
     LOG_WARN("ObDDLRedoLogReplayer has not been inited", K(ret));
@@ -81,6 +80,7 @@ int ObDDLRedoLogReplayer::replay_start(const ObDDLStartLog &log, const int64_t l
   } else {
     LOG_INFO("succeed to replay ddl start log", K(ret), K(log));
   }
+  LOG_INFO("finish replay ddl start log", K(ret), K(need_replay), K(log));
   return ret;
 }
 
@@ -94,7 +94,6 @@ int ObDDLRedoLogReplayer::replay_redo(const ObDDLRedoLog &log, const int64_t log
   ObDDLKV *ddl_kv = nullptr;
 
   DEBUG_SYNC(BEFORE_REPLAY_DDL_MACRO_BLOCK);
-  LOG_INFO("start to replay ddl redo log", K(log));
 
   if (OB_UNLIKELY(!is_inited_)) {
     ret = OB_NOT_INIT;
@@ -144,6 +143,7 @@ int ObDDLRedoLogReplayer::replay_redo(const ObDDLRedoLog &log, const int64_t log
       }
     }
   }
+  LOG_INFO("finish replay ddl redo log", K(ret), K(need_replay), K(log));
   return ret;
 }
 
@@ -158,7 +158,6 @@ int ObDDLRedoLogReplayer::replay_prepare(const ObDDLPrepareLog &log, const int64
   bool need_replay = true;
 
   DEBUG_SYNC(BEFORE_REPLAY_DDL_PREPRARE);
-  LOG_INFO("start to replay ddl prepare log", K(log));
 
   if (OB_UNLIKELY(!is_inited_)) {
     ret = OB_NOT_INIT;
@@ -182,6 +181,7 @@ int ObDDLRedoLogReplayer::replay_prepare(const ObDDLPrepareLog &log, const int64
   } else {
     LOG_INFO("replay ddl prepare log success", K(ret), K(table_key), K(log_ts));
   }
+  LOG_INFO("finish replay ddl prepare log", K(ret), K(need_replay), K(log));
   return ret;
 }
 
@@ -196,7 +196,6 @@ int ObDDLRedoLogReplayer::replay_commit(const ObDDLCommitLog &log, const int64_t
   bool need_replay = true;
 
   DEBUG_SYNC(BEFORE_REPLAY_DDL_COMMIT);
-  LOG_INFO("start to replay ddl commit log", K(log));
 
   if (OB_UNLIKELY(!is_inited_)) {
     ret = OB_NOT_INIT;
@@ -223,6 +222,7 @@ int ObDDLRedoLogReplayer::replay_commit(const ObDDLCommitLog &log, const int64_t
   } else {
     tablet_handle.get_obj()->remove_ddl_kv_mgr();
   }
+  LOG_INFO("finish replay ddl commit log", K(ret), K(need_replay), K(log));
   return ret;
 }
 
diff --git a/src/storage/ddl/ob_tablet_ddl_kv_mgr.cpp b/src/storage/ddl/ob_tablet_ddl_kv_mgr.cpp
index 061deb1969..3d61ab6c6b 100644
--- a/src/storage/ddl/ob_tablet_ddl_kv_mgr.cpp
+++ b/src/storage/ddl/ob_tablet_ddl_kv_mgr.cpp
@@ -309,6 +309,38 @@ int ObTabletDDLKvMgr::cleanup()
   return ret;
 }
 
+int ObTabletDDLKvMgr::online()
+{
+  int ret = OB_SUCCESS;
+  ObLSHandle ls_handle;
+  ObTabletHandle tablet_handle;
+  if (OB_UNLIKELY(!is_inited_)) {
+    ret = OB_NOT_INIT;
+    LOG_WARN("not init", K(ret));
+  } else if (OB_FAIL(MTL(ObLSService *)->get_ls(ls_id_, ls_handle, ObLSGetMod::DDL_MOD))) {
+    LOG_WARN("failed to get log stream", K(ret), K(ls_id_));
+  } else if (OB_FAIL(ls_handle.get_ls()->get_tablet(tablet_id_,
+                                                    tablet_handle,
+                                                    ObTabletCommon::NO_CHECK_GET_TABLET_TIMEOUT_US))) {
+    LOG_WARN("get tablet handle failed", K(ret), K(ls_id_), K(tablet_id_));
+  } else {
+    const ObTabletMeta &tablet_meta = tablet_handle.get_obj()->get_tablet_meta();
+    ObITable::TableKey table_key;
+    table_key.table_type_ = ObITable::TableType::MAJOR_SSTABLE;
+    table_key.tablet_id_ = tablet_meta.tablet_id_;
+    table_key.version_range_.base_version_ = 0;
+    table_key.version_range_.snapshot_version_ = tablet_meta.ddl_snapshot_version_;
+    const int64_t start_log_ts = tablet_meta.ddl_start_log_ts_;
+    if (OB_FAIL(ddl_start(table_key,
+                          start_log_ts,
+                          GET_MIN_CLUSTER_VERSION(),
+                          tablet_meta.ddl_checkpoint_ts_))) {
+      LOG_WARN("start ddl kv manager failed", K(ret), K(tablet_meta));
+    }
+  }
+  return ret;
+}
+
 int ObTabletDDLKvMgr::update_tablet(const int64_t start_log_ts, const int64_t snapshot_version, const int64_t ddl_checkpoint_ts)
 {
   int ret = OB_SUCCESS;
diff --git a/src/storage/ddl/ob_tablet_ddl_kv_mgr.h b/src/storage/ddl/ob_tablet_ddl_kv_mgr.h
index 108739f6ae..3621a39ba7 100644
--- a/src/storage/ddl/ob_tablet_ddl_kv_mgr.h
+++ b/src/storage/ddl/ob_tablet_ddl_kv_mgr.h
@@ -54,6 +54,7 @@ public:
   bool is_commit_success() const { return is_commit_success_; }
   common::ObTabletID get_tablet_id() const { return tablet_id_; }
   int cleanup();
+  int online();
   OB_INLINE void inc_ref() { ATOMIC_INC(&ref_cnt_); }
   OB_INLINE int64_t dec_ref() { return ATOMIC_SAF(&ref_cnt_, 1 /* just sub 1 */); }
   OB_INLINE int64_t get_ref() const { return ATOMIC_LOAD(&ref_cnt_); }
diff --git a/src/storage/ls/ob_ls_ddl_log_handler.cpp b/src/storage/ls/ob_ls_ddl_log_handler.cpp
index b78c02e9a6..2eef4ae4e1 100644
--- a/src/storage/ls/ob_ls_ddl_log_handler.cpp
+++ b/src/storage/ls/ob_ls_ddl_log_handler.cpp
@@ -101,6 +101,29 @@ int ObLSDDLLogHandler::online()
     ret = OB_NOT_INIT;
     LOG_WARN("ddl log handler not init", K(ret));
   } else {
+    ObLSTabletIterator tablet_iter(ObTabletCommon::NO_CHECK_GET_TABLET_TIMEOUT_US);
+    if (OB_FAIL(ls_->get_tablet_svr()->build_tablet_iter(tablet_iter))) {
+      LOG_WARN("failed to build ls tablet iter", K(ret), K(ls_));
+    } else {
+      while (OB_SUCC(ret)) {
+        ObDDLKvMgrHandle ddl_kv_mgr_handle;
+        if (OB_FAIL(tablet_iter.get_next_ddl_kv_mgr(ddl_kv_mgr_handle))) {
+          if (OB_ITER_END == ret) {
+            ret = OB_SUCCESS;
+            break;
+          } else {
+            LOG_WARN("failed to get ddl kv mgr", K(ret), K(ddl_kv_mgr_handle));
+          }
+        } else if (OB_UNLIKELY(!ddl_kv_mgr_handle.is_valid())) {
+          ret = OB_ERR_UNEXPECTED;
+          LOG_WARN("invalid tablet handle", K(ret), K(ddl_kv_mgr_handle));
+        } else if (OB_FAIL(ddl_kv_mgr_handle.get_obj()->online())) {
+          LOG_WARN("ddl kv mgr cleanup failed", K(ret), "ls_meta", ls_->get_ls_meta(), "tablet_id", ddl_kv_mgr_handle.get_obj()->get_tablet_id());
+        }
+      }
+    }
+  }
+  if (OB_SUCC(ret)) {
     TCWLockGuard guard(online_lock_);
     is_online_ = true;
   }