airborne12 commented on code in PR #22275:
URL: https://github.com/apache/doris/pull/22275#discussion_r1275640430
##########
be/src/olap/merger.cpp:
##########
@@ -246,6 +246,25 @@ Status Merger::vertical_compact_one_group(
RETURN_NOT_OK_STATUS_WITH_WARN(
reader.next_block_with_aggregation(&block, &eof),
"failed to read next block when merging rowsets of tablet " +
tablet->full_name());
+ if (!is_key && eof) {
+ DCHECK_EQ(dst_rowset_writer->num_rows(), stats_output->output_rows)
+ << "dst_rowset_writer->num_rows() !=
stats_output->output_rows:"
+ << dst_rowset_writer->num_rows() << " vs. " <<
stats_output->output_rows;
+ auto block_rows = dst_rowset_writer->num_rows();
+ auto buf_size = row_source_buf->buffered_size();
+ auto merged_rows = reader.merged_rows();
+ if (output_rows + block_rows != buf_size - merged_rows) {
+ row_source_buf->seek_to_begin();
+ uint32_t agg_rows = 0;
Review Comment:
is there any place using agg_rows?
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