yixiutt commented on code in PR #12214:
URL: https://github.com/apache/doris/pull/12214#discussion_r959543223
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be/src/vec/olap/vgeneric_iterators.cpp:
##########
@@ -382,21 +399,36 @@ Status VMergeIterator::next_batch(vectorized::Block*
block) {
_block_row_locations.resize(block_row_max);
}
size_t row_idx = 0;
+ VMergeIteratorContext* pre_ctx = nullptr;
while (block->rows() < block_row_max) {
if (_merge_heap.empty()) break;
auto ctx = _merge_heap.top();
_merge_heap.pop();
if (!ctx->need_skip()) {
- // copy current row to block
- ctx->copy_row(block);
+ ctx->add_cur_batch();
+ if (pre_ctx != ctx) {
+ if (pre_ctx) {
Review Comment:
add a row_idx check below
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