chaoyli commented on a change in pull request #563: Modify schema change to use 
rowset
URL: https://github.com/apache/incubator-doris/pull/563#discussion_r250472139
 
 

 ##########
 File path: be/src/olap/schema_change.cpp
 ##########
 @@ -843,52 +795,42 @@ bool SchemaChangeDirectly::process(ColumnData* 
olap_data, SegmentGroup* new_segm
         }
         add_filted_rows(filted_rows);
 
-        if (!_write_row_block(writer, new_row_block)) {
+        if (!_write_row_block(rowset_builder, new_row_block)) {
             OLAP_LOG_WARNING("failed to write row block.");
             result = false;
             goto DIRECTLY_PROCESS_ERR;
         }
 
-        olap_data->get_next_row_block(&ref_row_block);
-
-    }
+        rowset_reader->next_block(&ref_row_block);
 
-    if (OLAP_SUCCESS != writer->finalize()) {
-        result = false;
-        goto DIRECTLY_PROCESS_ERR;
     }
 
-    if (OLAP_SUCCESS != new_segment_group->load()) {
 
 Review comment:
   where to load rowset?

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