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Posted to github@arrow.apache.org by "Ted-Jiang (via GitHub)" <gi...@apache.org> on 2023/02/23 08:29:46 UTC

[GitHub] [arrow-rs] Ted-Jiang opened a new pull request, #3750: [minor] In ipc reader init hashMap with capacity

Ted-Jiang opened a new pull request, #3750:
URL: https://github.com/apache/arrow-rs/pull/3750

   # Which issue does this PR close?
   
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   Closes #.
   
   # Rationale for this change
    
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   Explaining clearly why changes are proposed helps reviewers understand your changes and offer better suggestions for fixes.
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   use `new`: The hash map is initially created with a capacity of 0, so it will not allocate until it.
   use `with_capacity` avoid reallocating
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   # Are there any user-facing changes?
   
   
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[GitHub] [arrow-rs] Ted-Jiang commented on pull request #3750: [minor] In ipc reader init hashMap with capacity

Posted by "Ted-Jiang (via GitHub)" <gi...@apache.org>.
Ted-Jiang commented on PR #3750:
URL: https://github.com/apache/arrow-rs/pull/3750#issuecomment-1441370903

   Close not all filed will use dictionary, its optional 😢 


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[GitHub] [arrow-rs] Ted-Jiang closed pull request #3750: [minor] In ipc reader init hashMap with capacity

Posted by "Ted-Jiang (via GitHub)" <gi...@apache.org>.
Ted-Jiang closed pull request #3750: [minor] In ipc reader init hashMap with capacity
URL: https://github.com/apache/arrow-rs/pull/3750


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