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Revert "Use segmented Slice in SliceDictionaryWriter" #16173

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merged 1 commit into from
May 27, 2021

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arhimondr
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This PR reverts optimizations introduced in #15956. The optimization causes significant regression in certain cases.

== NO RELEASE NOTE ==

@kaikalur
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I say let's run some verifier tests with large jobs writing out maps and see how the perf is.

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@arunthirupathi arunthirupathi left a comment

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My apologies for causing the regression.

@arhimondr arhimondr merged commit 5706c39 into prestodb:master May 27, 2021
@arhimondr arhimondr deleted the revert-dictionary-optimization branch May 27, 2021 15:57
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4 participants