wangbo commented on code in PR #10506:
URL: https://github.com/apache/doris/pull/10506#discussion_r910854608
##########
be/src/olap/rowset/segment_v2/bitshuffle_page.h:
##########
@@ -408,6 +408,32 @@ class BitShufflePageDecoder : public PageDecoder {
return Status::OK();
};
+ Status read_by_rowids(const rowid_t* rowids, ordinal_t page_first_ordinal,
size_t* n,
+ vectorized::MutableColumnPtr& dst) override {
+ DCHECK(_parsed);
+ if (PREDICT_FALSE(*n == 0)) {
+ *n = 0;
+ return Status::OK();
+ }
+
+ auto total = *n;
+ auto read_count = 0;
+ CppType data[total];
+ for (size_t i = 0; i < total; ++i) {
+ ordinal_t ord = rowids[i] - page_first_ordinal;
+ if (UNLIKELY(ord >= _num_elements)) {
+ break;
+ }
+
+ data[read_count++] = *reinterpret_cast<CppType*>(get_data(ord));
Review Comment:
Why not using ```read_count``` instead of ```i```
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