[BUGFIX] fix lob locator helper print row id for last row

deps/oblib/src/common/object/ob_object.h

@@ -640,7 +640,7 @@ enum ObMemLobType
   MAX_LOB_TYPE
 };
 
-// Memory Locator V2, Common Header, https://yuque.antfin.com/ob/gtuwei/mo6g8w
+// Memory Locator V2, Common Header, sz/mo6g8w
 // Notice: Do not add or remove fields from this sturct!
 // 8 bytes
 struct ObMemLobCommon

src/observer/mysql/ob_query_driver.cpp

@@ -516,7 +516,7 @@ int ObQueryDriver::process_lob_locator_results(ObObj& value,
   int ret = OB_SUCCESS;
   // 1. if client is_use_lob_locator, return lob locator
   // 2. if client is_use_lob_locator, but not support outrow lob, return lob locator with inrow data
-  //    refer to https://yuque.antfin.com/ob/gtuwei/aibo1m
+  //    refer to sz/aibo1m
   // 3. if client does not support use_lob_locator ,,return full lob data without locator header
   bool is_lob_type = value.is_lob() || value.is_json() || value.is_geometry() || value.is_lob_locator();
   if (!is_lob_type) {

src/sql/engine/expr/ob_expr_output_pack.cpp

@@ -483,7 +483,7 @@ int ObExprOutputPack::process_lob_locator_results(common::ObObj& value,
   int ret = OB_SUCCESS;
   // 1. if client is_use_lob_locator, return lob locator
   // 2. if client is_use_lob_locator, but not support outrow lob, return lob locator with inrow data
-  //    refer to https://yuque.antfin.com/ob/gtuwei/aibo1m
+  //    refer to sz/aibo1m
   // 3. if client does not support use_lob_locator ,,return full lob data without locator header
   bool is_use_lob_locator = my_session.is_client_use_lob_locator();
   bool is_support_outrow_locator_v2 = my_session.is_client_support_lob_locatorv2();

src/storage/lob/ob_lob_locator.h

@@ -27,7 +27,11 @@ public:
   ObLobLocatorHelper();
   virtual ~ObLobLocatorHelper();
   void reset();
-  void reuse() { locator_allocator_.reuse(); }
+  void reuse() {
+    locator_allocator_.reuse();
+    rowid_objs_.reuse();
+    rowkey_str_.reset();
+  }
   int init(const ObTableScanParam &scan_param,
            const ObStoreCtx &ctx,
            const share::ObLSID &ls_id,