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https://issues.apache.org/jira/browse/S2GRAPH-38?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15155567#comment-15155567
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ASF GitHub Bot commented on S2GRAPH-38:
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Github user emeth-kim commented on the pull request:
https://github.com/apache/incubator-s2graph/pull/21#issuecomment-186571507
+1
> Transform option gives wrong result since it transform degree edge too.
> -----------------------------------------------------------------------
>
> Key: S2GRAPH-38
> URL: https://issues.apache.org/jira/browse/S2GRAPH-38
> Project: S2Graph
> Issue Type: Bug
> Reporter: DOYUNG YOON
> Assignee: DOYUNG YOON
> Priority: Minor
> Labels: easyfix
>
> There is no check if edge is {{degreeEdge}} or normal {{indexEdge}} when we
> transform fetched edges using EdgeTransformer on QueryParam.
> I think it is necessary to skip {{Graph.convertEdges}} when edge is
> {{degreeEdge}}
> ex) there is no edges exist from srcVertex "a". if we query with "transform":
> [["from"]], then now query result has one edge {"from": "a", "to": "a"}. this
> is an edge that transformed from degreeEdge {"from": "a", "to": "0"}.
> I think using special target vertex id "0" in degree edge yield this problem
> and buggy, but for now transforming edge based on queryParam's
> EdgeTransformer can skip transform if considering edge is {{degreeEdge}}.
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