Fix data race in InlineStats #131370
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Fix data race in InlineStats #131370
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Fixed by elastic#131370 or elastic#130963. Closes elastic#130505 Closes elastic#130504 Closes elastic#130501 Closes elastic#131024
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Although blocks/vectors are immutable and safe to share between threads, their references are currently not thread-safe, which can lead to data races. Previously, blocks/vectors were exclusively owned by a single thread, but this is no longer always the case with InlineJoin. We should consider switching to AbstractRefCounted, which is thread-safe, and benchmark it with many-fields use cases to ensure there is no performance regression. As a temporary solution, this change clones the values block in InlineJoin until thread-safe blocks/vectors are available.