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https://issues.apache.org/jira/browse/BEAM-6670?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Ismaël Mejía updated BEAM-6670:
-------------------------------
    Component/s:     (was: sdk-java-core)
                 io-java-jdbc

> Option to disable reparallelization in JdbcIO.Read
> --------------------------------------------------
>
>                 Key: BEAM-6670
>                 URL: https://issues.apache.org/jira/browse/BEAM-6670
>             Project: Beam
>          Issue Type: Wish
>          Components: io-java-jdbc
>            Reporter: Mike Pedersen
>            Priority: Minor
>
> I'm doing approx. 20 JDBC queries against a database and then joining them 
> together in a group by. Every single one of these queries does a reshuffle, 
> which is sort of useless due to them being fed to a CoGroupByKey immediately 
> afterwards.
> Reshuffle by default seems sensible by the principle of least surprise, but 
> it would be nice to have a way to disable it when it's not necessary. For 
> example a "withReshuffle(boolean)" method. 
> This should be an easy addition and I am willing to add this if it sounds 
> reasonable enough.



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