[jira] [Commented] (ARROW-1790) [Format] Define logical data type that represents a "packed C struct" composed from other fixed-size primitive types

["Micah Kornfield (Jira)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/ARROW-1790?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16945173#comment-16945173 ] 

Micah Kornfield commented on ARROW-1790:
----------------------------------------

@wesm do you think this is something we still want to support natively or would it be better for extension types?  

> [Format] Define logical data type that represents a "packed C struct" composed from other fixed-size primitive types
> --------------------------------------------------------------------------------------------------------------------
>
>                 Key: ARROW-1790
>                 URL: https://issues.apache.org/jira/browse/ARROW-1790
>             Project: Apache Arrow
>          Issue Type: New Feature
>          Components: Format
>            Reporter: Wes McKinney
>            Assignee: Micah Kornfield
>            Priority: Major
>              Labels: pull-request-available
>             Fix For: 2.0.0
>
>          Time Spent: 4h 50m
>  Remaining Estimate: 0h
>
> This would embed data like
> {code}
> struct Point {
>   double x;
>   double y;
>   double z;
> };
> {code}
> Here the struct could be embedded in a {{FixedSizeBinary}} with width 24. This is similar to structured data types in NumPy and other libraries



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