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https://issues.apache.org/jira/browse/BEAM-9670?focusedWorklogId=414504&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-414504
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ASF GitHub Bot logged work on BEAM-9670:
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Author: ASF GitHub Bot
Created on: 02/Apr/20 07:09
Start Date: 02/Apr/20 07:09
Worklog Time Spent: 10m
Work Description: reuvenlax commented on pull request #11290: [BEAM-9670]
Fix nullability widening in CoGroup key resolution
URL: https://github.com/apache/beam/pull/11290
This PR also adds some zetasql unit tests that expose the previous bug.
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Issue Time Tracking
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Worklog Id: (was: 414504)
Remaining Estimate: 0h
Time Spent: 10m
> CoGroup transform should allow widening nullability in key schemas
> ------------------------------------------------------------------
>
> Key: BEAM-9670
> URL: https://issues.apache.org/jira/browse/BEAM-9670
> Project: Beam
> Issue Type: Bug
> Components: sdk-java-core
> Reporter: Reuven Lax
> Priority: Major
> Time Spent: 10m
> Remaining Estimate: 0h
>
> If the key field for one input has schema INT32 and the key field for the
> second input has schema NULLABLE[INT32], CoGroup fails - complaining that the
> key fields don't match. Instead CoGroup should widen the nullability
> restriction, creating a schema that allows either key input.
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