Comments (5)
I could reproduce this case after several runs.
Trying to catch the duplicate record found this option: Compare using stored row values
It seems this solves this case.
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Keep diving looking for a repoduction path and here it is:
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.take-issue
from hop.
I have taken a look, and indeed it is what it is. the way we do it is use Arrays.deepHashCode
to calculate the hash and it seems this one will likely start giving collisions after only 75K rows. I'll turn on the "Compare using stored value" as default option.
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I made that option the default and added a warning to the docs on possible collisions
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