wutiangan commented on a change in pull request #3034: implements intersect node
URL: https://github.com/apache/incubator-doris/pull/3034#discussion_r388753178
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File path: be/src/exec/intersect_node.cpp
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@@ -56,4 +41,164 @@ Status IntersectNode::init(const TPlanNode& tnode,
RuntimeState* state) {
}
return Status::OK();
}
-}
\ No newline at end of file
+
+Status IntersectNode::prepare(RuntimeState* state) {
+ RETURN_IF_ERROR(ExecNode::prepare(state));
+ _build_pool.reset(new MemPool(mem_tracker()));
+ SCOPED_TIMER(_runtime_profile->total_time_counter());
+ for (size_t i = 0; i < _child_expr_lists.size(); ++i) {
+ RETURN_IF_ERROR(Expr::prepare(_child_expr_lists[i], state,
child(i)->row_desc(),
+ expr_mem_tracker()));
+ }
+ _build_tuple_size = child(0)->row_desc().tuple_descriptors().size();
+ _build_tuple_row_size = _build_tuple_size * sizeof(Tuple*);
+ _build_tuple_idx.reserve(_build_tuple_size);
+
+ for (int i = 0; i < _build_tuple_size; ++i) {
+ TupleDescriptor* build_tuple_desc =
child(1)->row_desc().tuple_descriptors()[i];
Review comment:
child（1）？
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