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https://issues.apache.org/jira/browse/ARROW-10894?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17332319#comment-17332319
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Andrew Lamb commented on ARROW-10894:
-------------------------------------

Migrated to github: https://github.com/apache/arrow-datafusion/issues/125

> [Rust] [DataFusion] Optimizer rules should work with qualified column names
> ---------------------------------------------------------------------------
>
>                 Key: ARROW-10894
>                 URL: https://issues.apache.org/jira/browse/ARROW-10894
>             Project: Apache Arrow
>          Issue Type: Sub-task
>          Components: Rust - DataFusion
>            Reporter: Andy Grove
>            Priority: Major
>
> We have a number of optimization rules that deal with column names 
> represented by strings.
> In order to support qualified field names in queries we need to update these 
> rules to work with a data structure representing optionally qualified column 
> names instead.
> Suggested data structure:
> {code:java}
> struct ColumnName {
>   qualifier: Option<String>,
>   name: String
> } {code}



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