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https://issues.apache.org/jira/browse/BEAM-7116?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16841044#comment-16841044
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Reuven Lax commented on BEAM-7116:
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Transforms like Group that return KV today should instead return a two-field
schema. The default field names should be "key" and "value", but ideally these
transforms should allow specifying the field names.
> Remove KV from Schema transforms
> --------------------------------
>
> Key: BEAM-7116
> URL: https://issues.apache.org/jira/browse/BEAM-7116
> Project: Beam
> Issue Type: Sub-task
> Components: sdk-java-core
> Reporter: Reuven Lax
> Priority: Major
>
> Instead of returning KV objects, we should return a Schema with two fields.
> The Convert transform should be able to convert these to KV objects.
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