BiteTheDDDDt commented on a change in pull request #8429:
URL: https://github.com/apache/incubator-doris/pull/8429#discussion_r823477318
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File path: be/src/vec/exec/join/vhash_join_node.cpp
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@@ -601,6 +601,9 @@ HashJoinNode::HashJoinNode(ObjectPool* pool, const
TPlanNode& tnode, const Descr
_is_outer_join(_match_all_build || _match_all_probe) {
_runtime_filter_descs = tnode.runtime_filters;
init_join_op();
+
+ // avoid vector expand change block address.
+ _build_blocks.reserve(128);
Review comment:
> How about if size of `_build_blocks` bigger than 128?
one block can store 4g data, i think 128*4g is big enough to execute one
query. btw, if probe data bigger than 512g, runtime filter maybe will core dump
when insert data.
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