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https://issues.apache.org/jira/browse/ARROW-273?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15438920#comment-15438920
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Daniel Lemire commented on ARROW-273:
-------------------------------------
If the max value is going to be 2^31-1, then I submit to you that you have an
UINT31.
To be precise, in C you might define it as
{code:c}
typedef unsigned int __attribute__ ((bitwidth(31))) uint31;
{code}
> Lists use unsigned offset vectors instead of signed (as defined in the spec)
> ----------------------------------------------------------------------------
>
> Key: ARROW-273
> URL: https://issues.apache.org/jira/browse/ARROW-273
> Project: Apache Arrow
> Issue Type: Bug
> Components: Java - Vectors
> Reporter: Julien Le Dem
>
> The List vector defines it's offset vector as UInt4Vector. (unsigned int 34)
> According to the arrow spec it should be a signed int32.
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