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Posted to commits@beam.apache.org by "lynn (JIRA)" <ji...@apache.org> on 2017/08/04 08:03:00 UTC

[jira] [Created] (BEAM-2726) Document Error?

lynn created BEAM-2726:
--------------------------

             Summary: Document Error?
                 Key: BEAM-2726
                 URL: https://issues.apache.org/jira/browse/BEAM-2726
             Project: Beam
          Issue Type: Bug
          Components: beam-model
            Reporter: lynn
            Assignee: Frances Perry
            Priority: Minor


Programming Guide

Global windowing:

If your input PCollection uses the default global windowing, the default behavior is to return a PCollection containing one item. That item’s value comes from the accumulator in the combine function that you specified when applying Combine. For example, the Beam provided sum combine function returns a zero value (the sum of an empty input), while the {color:red}min{color} combine function returns a maximal or infinite value.

while the {color:red}max {color}combine function returns a maximal or infinite value.



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