fix illegal access free memory

src/share/schema/ob_schema_struct.cpp

@@ -5200,6 +5200,7 @@ void ObBasePartition::reset()
   is_empty_partition_name_ = false;
   tablespace_id_ = OB_INVALID_ID;
   partition_type_ = PARTITION_TYPE_NORMAL;
+  name_.reset();
   ObSchema::reset();
 }
 

src/sql/engine/expr/ob_expr_to_outfile_row.cpp

@@ -241,9 +241,9 @@ int ObExprToOutfileRow::print_field(char *buf, const int64_t buf_len, int64_t &p
     OZ(obj.print_plain_str_literal(buf, buf_len, pos, out_info.print_params_));
   } else if (obj.is_null()) {
     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, 'N', out_info.print_params_.cs_type_));
-  } else if (obj.is_string_or_lob_locator_type() && obj.get_collation_type() == CS_TYPE_BINARY) {
-    OZ(obj.print_plain_str_literal(buf, buf_len, pos, out_info.print_params_));
+    OZ(print_wchar_to_buf(buf, buf_len, pos, 'N', out_info.print_params_.cs_type_));
+  } else if (obj.is_string_or_lob_locator_type() && obj.get_collation_type() == CS_TYPE_BINARY) {
+    OZ(obj.print_plain_str_literal(buf, buf_len, pos, out_info.print_params_));
   } else {
     OZ(obj.print_plain_str_literal(out_info.tmp_buf_, out_info.tmp_buf_len_, tmp_pos,
                                    out_info.print_params_));