HappenLee commented on code in PR #45952:
URL: https://github.com/apache/doris/pull/45952#discussion_r1900372190
##########
be/src/vec/common/sort/partition_sorter.cpp:
##########
@@ -52,7 +52,12 @@ PartitionSorter::PartitionSorter(VSortExecExprs&
vsort_exec_exprs, int limit, in
_has_global_limit(has_global_limit),
_partition_inner_limit(partition_inner_limit),
_top_n_algorithm(top_n_algorithm),
- _previous_row(previous_row) {}
+ _previous_row(previous_row) {
+ if (_has_global_limit) {
+ // only need row number if has global limit, so we change algorithm
directly
+ _top_n_algorithm = TopNAlgorithm::ROW_NUMBER;
Review Comment:
seems the work better do in FE in plan node
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