dataroaring commented on code in PR #18686:
URL: https://github.com/apache/doris/pull/18686#discussion_r1172094084
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be/src/olap/memtable.cpp:
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@@ -243,11 +242,22 @@ void MemTable::_collect_vskiplist_results() {
VecTable::Iterator it(_vec_skip_list.get());
vectorized::Block in_block = _input_mutable_block.to_block();
if (_keys_type == KeysType::DUP_KEYS) {
+ vectorized::MutableBlock mutable_block =
+ vectorized::MutableBlock::build_mutable_block(&in_block);
+ _vec_row_comparator->set_block(&mutable_block);
+ std::sort(_row_in_blocks.begin(), _row_in_blocks.end(),
+ [this](const RowInBlock* l, const RowInBlock* r) -> bool {
+ if ((*(this->_vec_row_comparator))(l, r) == 0) {
+ return l->_row_pos - r->_row_pos > 0;
+ } else {
+ return (*(this->_vec_row_comparator))(l, r) < 0;
Review Comment:
two times comparator?
##########
be/src/olap/memtable.cpp:
##########
@@ -191,8 +191,7 @@ void MemTable::_insert_one_row_from_block(RowInBlock*
row_in_block) {
_rows++;
bool overwritten = false;
if (_keys_type == KeysType::DUP_KEYS) {
- // TODO: dup keys only need sort opertaion. Rethink skiplist is the
beat way to sort columns?
- _vec_skip_list->Insert(row_in_block, &overwritten);
+ // dup keys store in vector _row_in_blocks and sort it on flush stage
Review Comment:
store row_in_blocks in vector.
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