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ASF GitHub Bot commented on ARROW-1886: --------------------------------------- pitrou opened a new pull request #1768: ARROW-1886: [C++/Python] Flatten struct columns in table URL: https://github.com/apache/arrow/pull/1768 Add C++ and Python APIs to flatten struct fields and struct columns. Based on PR #1755. ---------------------------------------------------------------- This is an automated message from the Apache Git Service. To respond to the message, please log on GitHub and use the URL above to go to the specific comment. For queries about this service, please contact Infrastructure at: us...@infra.apache.org > [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 > Labels: pull-request-available > 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 -- This message was sent by Atlassian JIRA (v7.6.3#76005)