xiaokang commented on code in PR #38413:
URL: https://github.com/apache/doris/pull/38413#discussion_r1694230848
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be/src/olap/rowset/segment_v2/segment_iterator.cpp:
##########
@@ -699,6 +699,11 @@ Status
SegmentIterator::_get_row_ranges_from_conditions(RowRanges* condition_row
if (_opts.io_ctx.reader_type == ReaderType::READER_QUERY) {
RowRanges dict_row_ranges = RowRanges::create_single(num_rows());
for (auto cid : cids) {
+ if (!_segment->can_apply_predicate_safely(cid,
Review Comment:
There is check for can_apply_predicate_safely() in bf and zonemap branch.
Why it's not check in this branch before? Does this modification affect other
logic in this branch?
##########
be/src/vec/data_types/data_type_object.cpp:
##########
@@ -121,6 +126,11 @@ char* DataTypeObject::serialize(const IColumn& column,
char* buf, int be_exec_ve
}
// serialize num of subcolumns
*reinterpret_cast<uint32_t*>(size_pos) = num_of_columns;
+ if (num_of_columns == 0) {
+ // Make sure the num_of_rows in ColumnObject not lost
+ *reinterpret_cast<uint32_t*>(buf) = column_object.rows();
Review Comment:
1. Why only serialize num_rows when num_of_columns == 0?
2. It may cause error when rolling upgrade be if serialization is changed.
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