wangbo commented on a change in pull request #7007:
URL: https://github.com/apache/incubator-doris/pull/7007#discussion_r746362368
##########
File path: be/src/exec/olap_scanner.cpp
##########
@@ -245,8 +246,9 @@ Status OlapScanner::_init_return_columns() {
break;
}
}
- if (has_replace_col) {
-
_return_columns.push_back(_tablet->tablet_schema().sequence_col_idx());
+ if (auto sequence_col_idx =
_tablet->tablet_schema().sequence_col_idx();
+ has_replace_col && std::find(_return_columns.begin(),
_return_columns.end(), sequence_col_idx) == _return_columns.end()) {
+ _return_columns.push_back(sequence_col_idx);
Review comment:
What case may cause sequence_col_idx insert to return columns duplicately
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