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…column ref (#16856)
close#16858
Reconginize no-dup column ref only projections, and avoid deep VectorValue copy for such cases.
Signed-off-by: yibin <huyibin@pingcap.com>
Co-authored-by: Liqi Geng <gengliqiii@gmail.com>
Development Task
When projection executor contains only no duplicate column references, outputs can reuse the VectorValue from input directly, avoid deep copy.
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