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Create a fast arrayAllocator #14419

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@yingsu00

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@yingsu00

We used SimpleArrayAllocator in OptimizedPartitionedOutputOperator. But the borrowXXXArray() is very costly. In repartitioning, it takes over 8.5% of total CPU for a single bigint column with no nulls. We need a faster allocator.
Related Issue: #14280
Screen Shot 2020-04-20 at 5 13 40 PM

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