stenlarsson commented on issue #39582:
URL: https://github.com/apache/arrow/issues/39582#issuecomment-1914844288
Thanks for looking into this. Your change has no effect, however this seems
to help:
```patch
diff --git a/cpp/src/arrow/acero/query_context.cc
b/cpp/src/arrow/acero/query_context.cc
index 9f838508f..f5558f6fc 100644
--- a/cpp/src/arrow/acero/query_context.cc
+++ b/cpp/src/arrow/acero/query_context.cc
@@ -53,7 +53,7 @@ size_t QueryContext::max_concurrency() const { return
thread_indexer_.Capacity()
Result<util::TempVectorStack*> QueryContext::GetTempStack(size_t
thread_index) {
if (!tld_[thread_index].is_init) {
RETURN_NOT_OK(tld_[thread_index].stack.Init(
- memory_pool(), 8 * util::MiniBatch::kMiniBatchLength *
sizeof(uint64_t)));
+ memory_pool(), 256 * util::MiniBatch::kMiniBatchLength *
sizeof(uint64_t)));
tld_[thread_index].is_init = true;
}
return &tld_[thread_index].stack;
```
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