yiguolei commented on code in PR #35432:
URL: https://github.com/apache/doris/pull/35432#discussion_r1616188679
##########
be/src/olap/rowset/beta_rowset_reader.cpp:
##########
@@ -249,38 +250,66 @@ Status
BetaRowsetReader::get_segment_iterators(RowsetReaderContext* read_context
// load segments
bool should_use_cache = use_cache || _read_context->reader_type ==
ReaderType::READER_QUERY;
- RETURN_IF_ERROR(SegmentLoader::instance()->load_segments(_rowset,
&_segment_cache_handle,
+ SegmentCacheHandle segment_cache_handle;
+ RETURN_IF_ERROR(SegmentLoader::instance()->load_segments(_rowset,
&segment_cache_handle,
should_use_cache));
// create iterator for each segment
- auto& segments = _segment_cache_handle.get_segments();
+ auto& segments = segment_cache_handle.get_segments();
+ _segments_rows.resize(segments.size());
+ for (size_t i = 0; i < segments.size(); i++) {
+ _segments_rows[i] = segments[i]->num_rows();
+ }
+
auto [seg_start, seg_end] = _segment_offsets;
if (seg_start == seg_end) {
seg_start = 0;
seg_end = segments.size();
}
+ const bool is_merge_iterator = _is_merge_iterator();
+ const bool use_lazy_init_iterators =
+ !is_merge_iterator && _read_context->reader_type ==
ReaderType::READER_QUERY;
Review Comment:
why need check reader type?
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