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ORC-974: Remove Text Key from StringRedBlackTree
What changes were proposed in this pull request?
Remove the dependency on Hadoop's Text class from RedBlackTree. This has the added benefit of skipping the step where the incoming bytes are copied into the Text class.
Why are the changes needed?
Allows for removing dependency on Hadoop later; improve performance by removing copy.
How was this patch tested?
No functionality change. Using existing unit tests.