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Posted to issues@arrow.apache.org by "Antoine Pitrou (JIRA)" <ji...@apache.org> on 2018/03/15 01:23:00 UTC
[jira] [Assigned] (ARROW-1886) [Python] Add function to "flatten"
structs within tables
[ https://issues.apache.org/jira/browse/ARROW-1886?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Antoine Pitrou reassigned ARROW-1886:
-------------------------------------
Assignee: Antoine Pitrou
> [Python] Add function to "flatten" structs within tables
> --------------------------------------------------------
>
> Key: ARROW-1886
> URL: https://issues.apache.org/jira/browse/ARROW-1886
> Project: Apache Arrow
> Issue Type: Improvement
> Components: Python
> Reporter: Wes McKinney
> Assignee: Antoine Pitrou
> Priority: Major
> Fix For: 0.10.0
>
>
> See discussion in https://issues.apache.org/jira/browse/ARROW-1873
> When a user has a struct column, it may be more efficient to flatten the struct into multiple columns of the form {{struct_name.field_name}} for each field in the struct. Then when you call {{to_pandas}}, Python dictionaries do not have to be created, and the conversion will be much more efficient
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