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https://issues.apache.org/jira/browse/BEAM-5306?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Vaclav Plajt updated BEAM-5306:
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Summary: Joins should support more than one output element from user
joining UDF (was: Joins should support more than one output from user joining
UDF )
> Joins should support more than one output element from user joining UDF
> ------------------------------------------------------------------------
>
> Key: BEAM-5306
> URL: https://issues.apache.org/jira/browse/BEAM-5306
> Project: Beam
> Issue Type: Sub-task
> Components: dsl-euphoria
> Reporter: Vaclav Plajt
> Assignee: Vaclav Plajt
> Priority: Major
>
> Output elements from joining user-defined functions are collected using
> `SingleValueCollector`, so only one output value is supported. That is wrong
> limitation. Refactor 'DoFnCollector' to be universally usable to collect many
> elements with custom adaptation.
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