morningman commented on a change in pull request #4526:
URL: https://github.com/apache/incubator-doris/pull/4526#discussion_r482827866
##########
File path: be/src/olap/rowset/segment_group.cpp
##########
@@ -258,34 +258,52 @@ OLAPStatus
SegmentGroup::add_zone_maps_for_linked_schema_change(
for (size_t i = 0; i < zonemap_col_num; ++i) {
- // in duplicated table update from 0.11 to 0.12, zone map index may be
missed
+ // in duplicated table update from 0.11 to 0.12, zone map index may be
missed and may not a new column.
if (_schema->keys_type() == DUP_KEYS &&
schema_mapping[i].ref_column != -1 &&
schema_mapping[i].ref_column >= zone_map_fields.size()) {
- continue;
+
+ // the sequence of columns in _zone_maps and _schema must be
consistent, so here
+ // process should not add missed zonemap and we break the loap.
Review comment:
```suggestion
// process should not add missed zonemap and we break the loop.
```
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