support batch execute when using non array pl var in forall stmt

src/pl/ob_pl_resolver.cpp

@@ -3632,7 +3632,7 @@ int ObPLResolver::check_raw_expr_in_forall(ObRawExpr* expr, int64_t idx, bool &n
         LOG_WARN("PLS-00430: FORALL iteration variable INDX is not allowed in this context", K(ret));
       }
       //这里控制包含非数组类型变量的forall语句直接以forloop实现, 避免forall先回退, 再forloop执行
-      can_array_binding = false;
+      can_array_binding = true;
     } else {
       bool inner_modify = false;
       bool inner_can_array_binding = true;

src/sql/engine/expr/ob_expr_to_outfile_row.cpp

@@ -34,9 +34,9 @@ ObExprToOutfileRow::ObExprToOutfileRow(ObIAllocator &alloc)
 
 ObExprToOutfileRow::~ObExprToOutfileRow()
 {
-}
-
-int ObExprToOutfileRow::calc_result_typeN(ObExprResType &type,
+}
+
+int ObExprToOutfileRow::calc_result_typeN(ObExprResType &type,
                                     ObExprResType *types,
                                     int64_t param_num,
                                     ObExprTypeCtx &type_ctx) const
@@ -98,11 +98,11 @@ int ObExprToOutfileRow::extend_buffer(ObExprOutFileInfo &out_info,
   int64_t old_len = out_info.buf_len_;
   int64_t new_len = (old_len == 0) ? OB_MALLOC_MIDDLE_BLOCK_SIZE : old_len * 2;
   if (OB_ISNULL(out_info.buf_ = static_cast<char*>(allocator.alloc(new_len)))) {
-    ret = OB_ALLOCATE_MEMORY_FAILED;
-    LOG_WARN("fail to allocate memory", K(ret), K(old_len), K(new_len));
-  } else if (OB_ISNULL(out_info.tmp_buf_ = static_cast<char*>(allocator.alloc(new_len)))) {
     ret = OB_ALLOCATE_MEMORY_FAILED;
     LOG_WARN("fail to allocate memory", K(ret), K(old_len), K(new_len));
+  } else if (OB_ISNULL(out_info.tmp_buf_ = static_cast<char*>(allocator.alloc(new_len)))) {
+    ret = OB_ALLOCATE_MEMORY_FAILED;
+    LOG_WARN("fail to allocate memory", K(ret), K(old_len), K(new_len));
   } else {
     out_info.buf_len_ = new_len;
     out_info.tmp_buf_len_ = new_len;
@@ -151,9 +151,9 @@ int ObExprToOutfileRow::calc_outfile_info(const ObExpr &expr,
 }
 
 int ObExprToOutfileRow::to_outfile_str(const ObExpr &expr, ObEvalCtx &ctx, ObDatum &expr_datum)
-{
-  int ret = OB_SUCCESS;
-  if (OB_UNLIKELY(expr.arg_cnt_ <= PARAM_SELECT_ITEM)) {
+{
+  int ret = OB_SUCCESS;
+  if (OB_UNLIKELY(expr.arg_cnt_ <= PARAM_SELECT_ITEM)) {
     ret = OB_INVALID_ARGUMENT;
     LOG_WARN("Invalid argument", K(ret));
   } else if (OB_FAIL(expr.eval_param_value(ctx))) {