wumeibanfa commented on code in PR #55719:
URL: https://github.com/apache/doris/pull/55719#discussion_r2342822271
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be/src/olap/rowset/segment_v2/column_reader.cpp:
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@@ -1329,6 +1329,8 @@ Status FileColumnIterator::next_batch(size_t* n,
vectorized::MutableColumnPtr& d
const auto* null_col =
vectorized::check_and_get_column<vectorized::ColumnNullable>(dst.get());
if (null_col != nullptr) {
+ // check_and_get_column returns const T*, dst is an
object that can be modified,
Review Comment:
这里check_and_get_column返回了一个const
vectorized::ColumnNullable*，要修改这里只能不用check_and_get_column
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