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https://issues.apache.org/jira/browse/CALCITE-6701?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17932240#comment-17932240
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Stamatis Zampetakis commented on CALCITE-6701:
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Removing the fix version as there is no PR or progress in this ticket.
> Refactor the data type in the filter structure in the Arrow adapter
> -------------------------------------------------------------------
>
> Key: CALCITE-6701
> URL: https://issues.apache.org/jira/browse/CALCITE-6701
> Project: Calcite
> Issue Type: Improvement
> Components: arrow-adapter
> Affects Versions: 1.38.0
> Reporter: Caican Cai
> Priority: Major
> Fix For: 1.39.0
>
>
> The data type of the filter structure in the current arrow is represented by
> a string. Perhaps we can try to use the structure that comes with Calcite to
> represent these data types, such as RelDataType
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