uchenily commented on code in PR #60772:
URL: https://github.com/apache/doris/pull/60772#discussion_r2809264008
##########
be/src/vec/olap/vgeneric_iterators.cpp:
##########
@@ -149,12 +149,18 @@ Status VMergeIteratorContext::copy_rows(Block* block,
bool advanced) {
if (_cur_batch_num == 0) {
return Status::OK();
}
+ size_t output_cols = _output_schema->num_column_ids();
+ // src block may contain extra columns (e.g. delete-predicate columns)
because
Review Comment:
我之前的pr是根据dst block来遍历的
```cpp
Status VMergeIteratorContext::copy_rows(Block* block, bool advanced) {
...
for (size_t i = 0; i < block->columns(); ++i) {
...
}
```
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