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Posted to jira@arrow.apache.org by "Bob Matcuk (Jira)" <ji...@apache.org> on 2021/11/09 20:16:00 UTC

[jira] [Created] (ARROW-14647) bignumToNumber returns incorrect results for negative numbers

Bob Matcuk created ARROW-14647:
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             Summary: bignumToNumber returns incorrect results for negative numbers
                 Key: ARROW-14647
                 URL: https://issues.apache.org/jira/browse/ARROW-14647
             Project: Apache Arrow
          Issue Type: Bug
          Components: JavaScript
    Affects Versions: 6.0.0
            Reporter: Bob Matcuk


I have the following in my data:

 
{code:java}
v = new Uint32Array([4294786450, 4294967295, 4294967295, 4294967295]) {code}
bignumToNumber converts this to -18446744069414765000 but it should be -180846.

I actually suspect that bignumToNumber fails on anything greater than 64 bits, but I don't have any positive test cases.

 



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