wjones127 commented on a change in pull request #12339:
URL: https://github.com/apache/arrow/pull/12339#discussion_r803174733
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File path: cpp/src/arrow/compute/exec/hash_join.cc
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@@ -151,6 +151,7 @@ class HashJoinBasicImpl : public HashJoinImpl {
}
void InitLocalStateIfNeeded(size_t thread_index) {
+ DCHECK_LT(thread_index, local_states_.size());
ThreadLocalState& local_state = local_states_[thread_index];
Review comment:
It seems this fails whenever `options(arrow.use_threads = FALSE)` is set
in the R session. I can trigger this on non-Windows platforms that way. Example
CI failure:
https://github.com/wjones127/arrow/runs/5133282492?check_suite_focus=true#step:7:10318
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