HappenLee commented on code in PR #62956:
URL: https://github.com/apache/doris/pull/62956#discussion_r3258645865
##########
be/src/exec/operator/nested_loop_join_probe_operator.cpp:
##########
@@ -177,6 +238,512 @@ void process_build_block(int64_t build_block_pos, Block&
block, const Block& bui
block.set_columns(std::move(dst_columns));
}
+void NestedLoopJoinProbeLocalState::_replace_lazy_placeholder_columns(size_t
rows) {
+ auto& p = _parent->cast<NestedLoopJoinProbeOperatorX>();
+ for (size_t i = 0; i < _join_block.columns(); ++i) {
+ if (p._materialize_column_ids.find(cast_set<int>(i)) !=
p._materialize_column_ids.end()) {
+ continue;
+ }
+ const auto& column = _join_block.get_by_position(i);
+ _join_block.replace_by_position(i,
+
column.type->create_column_const_with_default_value(rows));
+ }
+}
+
+Status NestedLoopJoinProbeLocalState::_append_lazy_rows(const IColumn::Filter&
filter,
+ size_t selected_rows,
bool fixed_side_probe,
+ int64_t fixed_side_pos,
+ const Block&
probe_block,
+ const Block&
build_block) {
+ auto& p = _parent->cast<NestedLoopJoinProbeOperatorX>();
+ const size_t old_rows = _join_block.rows();
+ const size_t new_rows = old_rows + selected_rows;
+
+ if (p._materialize_column_ids.empty()) {
+ _replace_lazy_placeholder_columns(new_rows);
+ DCHECK_EQ(_join_block.rows(), new_rows);
+ return Status::OK();
+ }
+
+ auto dst_columns = _join_block.mutate_columns();
+ for (int column_id : p._materialize_column_ids) {
+ const auto column_idx = cast_set<size_t>(column_id);
+ if (column_idx < p._num_probe_side_columns) {
+ const auto& src_column = probe_block.get_by_position(column_idx);
+ if (fixed_side_probe) {
+ append_many_from_source(dst_columns[column_idx], src_column,
fixed_side_pos,
+ selected_rows);
+ } else {
+ append_filtered_from_source(dst_columns[column_idx],
src_column, filter,
+ selected_rows);
+ }
+ } else {
+ const auto build_column_idx = column_idx -
p._num_probe_side_columns;
+ const auto& src_column =
build_block.get_by_position(build_column_idx);
+ if (fixed_side_probe) {
+ append_filtered_from_source(dst_columns[column_idx],
src_column, filter,
+ selected_rows);
+ } else {
+ append_many_from_source(dst_columns[column_idx], src_column,
fixed_side_pos,
+ selected_rows);
+ }
+ }
+ }
+ _join_block.set_columns(std::move(dst_columns));
+ _replace_lazy_placeholder_columns(new_rows);
+ DCHECK_EQ(_join_block.rows(), new_rows);
+ return Status::OK();
+}
+
+Status
NestedLoopJoinProbeLocalState::_append_lazy_probe_row_with_build_defaults(
+ const Block& probe_block, int64_t probe_row_pos) {
+ auto& p = _parent->cast<NestedLoopJoinProbeOperatorX>();
+ const size_t new_rows = _join_block.rows() + 1;
+
+ if (p._materialize_column_ids.empty()) {
Review Comment:
same to up
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