AshinGau commented on code in PR #25591:
URL: https://github.com/apache/doris/pull/25591#discussion_r1363604705
##########
be/src/vec/exec/jni_connector.cpp:
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@@ -311,8 +311,8 @@ Status JniConnector::_fill_column(TableMetaAddress&
address, ColumnPtr& doris_co
}
MutableColumnPtr data_column;
if (doris_column->is_nullable()) {
- auto* nullable_column = reinterpret_cast<vectorized::ColumnNullable*>(
- (*std::move(doris_column)).mutate().get());
Review Comment:
`mutate` will return the copied column when `use_count > 1`, so use
`assume_mutable` to get the mutable column.
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