[jira] [Comment Edited] (ARROW-1588) [C++/Format] Harden Decimal Format

["Wes McKinney (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/ARROW-1588?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16175062#comment-16175062 ] 

Wes McKinney edited comment on ARROW-1588 at 9/21/17 4:34 PM:
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[~tarmstrong] in the not-too-distant future we will be creating a columnar function kernel library in C++ to process arrays of contiguous decimals in-memory, so we would want operations like {{arr * 2}}, where {{arr}} contains multiple decimal values in a buffer to evaluate as fast as possible. For the moment the only place where Arrow users are doing analytics on Decimals in in Dremio https://github.com/dremio/dremio-oss. 


was (Author: wesmckinn):
[~tarmstrong] in the not-too-distant future we will be creating a columnar function kernel library in C++ to process arrays of contiguous decimals in-memory, so we would want operations like {{arr * 2}], where {{arr}} contains multiple decimal values in a buffer to evaluate as fast as possible. For the moment the only place where Arrow users are doing analytics on Decimals in in Dremio https://github.com/dremio/dremio-oss. 

> [C++/Format] Harden Decimal Format
> ----------------------------------
>
>                 Key: ARROW-1588
>                 URL: https://issues.apache.org/jira/browse/ARROW-1588
>             Project: Apache Arrow
>          Issue Type: Improvement
>          Components: C++, Format
>    Affects Versions: 0.7.0
>            Reporter: Phillip Cloud
>            Assignee: Phillip Cloud
>             Fix For: 0.8.0
>
>
> We should finalize and harden the decimal format. The remaining issues are officially writing down the choice of making every decimal value 16 bytes and byte order.
> For byte order we'll need to run some benchmarks to compare little endian vs big endian. I plan to work on this over the next week or two.
> [~jacques@dremio.com] [~wesmckinn] If there are any additional items you'd like to see addressed here please chime in. 



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