Details
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Improvement
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Status: Closed
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Major
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Resolution: Fixed
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2.2.0
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None
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Vectorization: BytesBytes lookup capped count can be =0, =1, >=2 (Gopal V, reviewed by Sergey Shelukhin)
Description
BytesBytesHashmap does not implement deep counters for the depth of a probe - but however it does distinguish between 0, 1 and > 1 rows.
This information can be used in the vectorized hash join to avoid copying the probe side keys.