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https://issues.apache.org/jira/browse/ARROW-4176?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17058527#comment-17058527
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Florian Jetter commented on ARROW-4176:
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This came up in a PR regarding the str/repr of the schemas
https://github.com/JDASoftwareGroup/kartothek/pull/240#discussion_r392101196
> [C++/Python] Human readable arrow schema comparison
> ---------------------------------------------------
>
> Key: ARROW-4176
> URL: https://issues.apache.org/jira/browse/ARROW-4176
> Project: Apache Arrow
> Issue Type: Improvement
> Components: C++, Python
> Reporter: Florian Jetter
> Priority: Minor
> Labels: beginner
>
> When working with arrow schemas it would be helpful to have a human readable
> representation of the diff between two schemas.
> This could be either exposed as a function returning a string/diff object or
> via a function raising an Exception with this information.
> For instance:
> {code}
> schema_diff = get_schema_diff(schema1, schema2)
> expected_diff = """
> - col_changed: int8
> + col_changed: double
> + col_additional: int8
> """
> assert schema_diff == expected_diff
> {code}
>
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