yangzhg commented on a change in pull request #7788:
URL: https://github.com/apache/incubator-doris/pull/7788#discussion_r786370400
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File path: be/src/olap/rowset/segment_v2/ordinal_page_index.h
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@@ -69,6 +69,9 @@ class OrdinalIndexReader {
// load and parse the index page into memory
Status load(bool use_page_cache, bool kept_in_memory);
+ // the returned iter points to the largest element which is less than
`ordinal`,
+ // or points to the first element if all elements are greater than
`ordinal`,
+ // or points to "end" if all elementss are smaller than `ordinal`.
Review comment:
```suggestion
// or points to "end" if all elements are smaller than `ordinal`.
```
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