morningman commented on a change in pull request #5811:
URL: https://github.com/apache/incubator-doris/pull/5811#discussion_r648500560
##########
File path: be/src/olap/rowset/alpha_rowset_reader.cpp
##########
@@ -120,20 +129,24 @@ int64_t AlphaRowsetReader::filtered_rows() {
}
OLAPStatus AlphaRowsetReader::_union_block(RowBlock** block) {
- while (_ordinal < _merge_ctxs.size()) {
+ while (_cur_ctx != nullptr) {
// union block only use one block to store
- OLAPStatus status = _pull_next_block(&(_merge_ctxs[_ordinal]));
+ OLAPStatus status = _pull_next_block(_cur_ctx);
if (status == OLAP_ERR_DATA_EOF) {
- _ordinal++;
- continue;
+ delete _cur_ctx;
+ _cur_ctx = nullptr;
+ _sequential_ctxs.pop_front();
+ if (!_sequential_ctxs.empty()) {
+ _cur_ctx = *(_sequential_ctxs.begin());
+ }
} else if (status != OLAP_SUCCESS) {
return status;
} else {
- (*block) = _merge_ctxs[_ordinal].row_block;
+ (*block) = _cur_ctx->row_block;
return OLAP_SUCCESS;
}
}
- if (_ordinal == _merge_ctxs.size()) {
+ if (_sequential_ctxs.empty()) {
Review comment:
OK
##########
File path: be/src/olap/rowset/alpha_rowset_reader.cpp
##########
@@ -37,6 +37,15 @@ AlphaRowsetReader::AlphaRowsetReader(int
num_rows_per_row_block, AlphaRowsetShar
AlphaRowsetReader::~AlphaRowsetReader() {
delete _dst_cursor;
_rowset->release();
+ while (!_merge_heap.empty()) {
Review comment:
OK
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