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Posted to commits@beam.apache.org by "Vaclav Plajt (JIRA)" <ji...@apache.org> on 2018/08/28 05:29:01 UTC

[jira] [Created] (BEAM-5245) Missing windowing error message is not undestandable to Euphoria user

Vaclav Plajt created BEAM-5245:
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             Summary: Missing windowing error message is not undestandable to Euphoria user
                 Key: BEAM-5245
                 URL: https://issues.apache.org/jira/browse/BEAM-5245
             Project: Beam
          Issue Type: Sub-task
          Components: dsl-euphoria
            Reporter: Vaclav Plajt
            Assignee: Vaclav Plajt


RBK a JOIN cannot wotk witout windowing when inputs are unbounded. Translators do not reports it, but underalying Beam transforms do: `GroupByKey cannot be applied to non-bounded PCollection in the GlobalWindow without a trigger.` Their description of the problem is hart do understind for Euphoria API user.  We should issue errror messahe of our own. Napr. `ReduceByKey cannot be used without windowing when input is unbounded.`



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