[jira] [Created] (PIG-4769) UnionOptimizer hits errors when merging vertex group into split

["Rohini Palaniswamy (JIRA)" <ji...@apache.org>]

Rohini Palaniswamy created PIG-4769:
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             Summary: UnionOptimizer hits errors when merging vertex group into split
                 Key: PIG-4769
                 URL: https://issues.apache.org/jira/browse/PIG-4769
             Project: Pig
          Issue Type: Bug
            Reporter: Rohini Palaniswamy
            Assignee: Rohini Palaniswamy
             Fix For: 0.16.0


 1) For a script that needs store vertex group removed and merged into split, it gives error

Caused by: java.lang.IllegalArgumentException: VertexGroup must have at least 2 members

as we leave the vertexgroup with just one member in it (POSplit).

2)  For a script that needs non-store vertex group removed, it gives error

Input from vertex scope-xxx is missing

In this case, vertex group is removing but successor inputs are not replaced correctly.



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