wangbo commented on code in PR #9134:
URL: https://github.com/apache/incubator-doris/pull/9134#discussion_r855753474
##########
be/src/olap/rowset/segment_v2/segment_iterator.cpp:
##########
@@ -892,12 +892,40 @@ void
SegmentIterator::_read_columns_by_rowids(std::vector<ColumnId>& read_column
vectorized::MutableColumns*
mutable_columns) {
SCOPED_RAW_TIMER(&_opts.stats->lazy_read_ns);
size_t start_idx = 0;
+ size_t batch_size = 256;
Review Comment:
OK，I'll give it a test.
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