[jira] [Updated] (ARROW-4097) [C++] Add function to "conform" a dictionary array to a target new dictionary

2020-01-07 Thread Wes McKinney (Jira)


 [ 
https://issues.apache.org/jira/browse/ARROW-4097?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

Wes McKinney updated ARROW-4097:

Fix Version/s: (was: 0.16.0)

> [C++] Add function to "conform" a dictionary array to a target new dictionary
> -
>
> Key: ARROW-4097
> URL: https://issues.apache.org/jira/browse/ARROW-4097
> Project: Apache Arrow
>  Issue Type: New Feature
>  Components: C++
>Reporter: Wes McKinney
>Priority: Major
>
> Follow up work to ARROW-554. 
> Unifying multiple dictionary-encoded arrays is one use case. Another is 
> rewriting a DictionaryArray to be based on another dictionary. For example, 
> this would be used to implement Cast from one dictionary type to another.
> This will need to be able to insert nulls where there are values that are not 
> found in the target dictionary
> see also discussion at 
> https://github.com/apache/arrow/pull/3165#discussion_r243025730



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[jira] [Updated] (ARROW-4097) [C++] Add function to "conform" a dictionary array to a target new dictionary

2019-05-31 Thread Wes McKinney (JIRA)


 [ 
https://issues.apache.org/jira/browse/ARROW-4097?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

Wes McKinney updated ARROW-4097:

Fix Version/s: (was: 0.14.0)
   0.15.0

> [C++] Add function to "conform" a dictionary array to a target new dictionary
> -
>
> Key: ARROW-4097
> URL: https://issues.apache.org/jira/browse/ARROW-4097
> Project: Apache Arrow
>  Issue Type: New Feature
>  Components: C++
>Reporter: Wes McKinney
>Priority: Major
> Fix For: 0.15.0
>
>
> Follow up work to ARROW-554. 
> Unifying multiple dictionary-encoded arrays is one use case. Another is 
> rewriting a DictionaryArray to be based on another dictionary. For example, 
> this would be used to implement Cast from one dictionary type to another.
> This will need to be able to insert nulls where there are values that are not 
> found in the target dictionary
> see also discussion at 
> https://github.com/apache/arrow/pull/3165#discussion_r243025730



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[jira] [Updated] (ARROW-4097) [C++] Add function to "conform" a dictionary array to a target new dictionary

2019-02-07 Thread Wes McKinney (JIRA)


 [ 
https://issues.apache.org/jira/browse/ARROW-4097?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

Wes McKinney updated ARROW-4097:

Fix Version/s: (was: 0.13.0)
   0.14.0

> [C++] Add function to "conform" a dictionary array to a target new dictionary
> -
>
> Key: ARROW-4097
> URL: https://issues.apache.org/jira/browse/ARROW-4097
> Project: Apache Arrow
>  Issue Type: New Feature
>  Components: C++
>Reporter: Wes McKinney
>Priority: Major
> Fix For: 0.14.0
>
>
> Follow up work to ARROW-554. 
> Unifying multiple dictionary-encoded arrays is one use case. Another is 
> rewriting a DictionaryArray to be based on another dictionary. For example, 
> this would be used to implement Cast from one dictionary type to another.
> This will need to be able to insert nulls where there are values that are not 
> found in the target dictionary
> see also discussion at 
> https://github.com/apache/arrow/pull/3165#discussion_r243025730



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