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https://issues.apache.org/jira/browse/ARROW-11665?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17289900#comment-17289900
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Joris Van den Bossche commented on ARROW-11665:
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[~ARF1] thanks for opening the issue. I have wondered about this in the past as
well, so I agree it would be good to add some more explanation about this to
the documentation.
cc [~apitrou]
> [Python] Document precision and scale parameters of decimal128()
> ----------------------------------------------------------------
>
> Key: ARROW-11665
> URL: https://issues.apache.org/jira/browse/ARROW-11665
> Project: Apache Arrow
> Issue Type: Improvement
> Components: Documentation, Python
> Reporter: ARF
> Priority: Minor
>
> In pyarrow, the {{decimal128()}} factory takes two parameters, {{precision}}
> and {{scale}}.
> It is unclear to me, what these parameters are and how to use them.
> Unfortunately, the wikipedia entry for Decimal128 does not help either.
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