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

[Bob Matcuk (Jira)]

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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