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https://issues.apache.org/jira/browse/TINKERPOP-1684?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
stephen mallette closed TINKERPOP-1684.
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Resolution: Cannot Reproduce
Not sure when this was fixed but it can no longer be reproduced on any branch.
for the most recent release at 3.2.10 we get:
{code}
gremlin>
g.V(1).repeat(out()).emit().tree().by(union(__(),repeat(out()).emit().count()).fold())
==>[[v[1],5]:[[v[3],0]:[],[v[2],0]:[],[v[4],2]:[[v[5],0]:[],[v[3],0]:[]]]]
{code}
The extra output is gone......
> Improper results with union() in a by()
> ---------------------------------------
>
> Key: TINKERPOP-1684
> URL: https://issues.apache.org/jira/browse/TINKERPOP-1684
> Project: TinkerPop
> Issue Type: Bug
> Components: process
> Affects Versions: 3.2.4
> Reporter: stephen mallette
> Priority: Major
>
> There are some odd results when using a {{union()}} inside a {{by()}}. These
> problems were initially found in {{tree().by()}} as follows:
> {code}
> gremlin> g.V(1).repeat(out()).emit().tree().next()
> ==>v[1]={v[2]={}, v[3]={}, v[4]={v[3]={}, v[5]={}}}
> gremlin> g.V(1).repeat(out()).emit().tree().by('name').next()
> ==>marko={vadas={}, josh={ripple={}, lop={}}, lop={}}
> gremlin>
> g.V(1).repeat(out()).emit().tree().by(union(__(),repeat(out()).emit().count()).fold()).next()
> ==>[0, v[1], 5]={[0, v[4], 2]={[0, v[5]]={}}}
> ==>[v[1], 5]={[0, v[2]]={}, [0, v[3]]={}, [0, v[4], 2]={[0, v[3]]={}}}
> {code}
> For some reason the final traversal returns two entries to tree where there
> are extra "0" values in the lists that we can't seem to account for. So, i
> suppose this is either a bug or we need some explanation for why the extra
> zeroes are there.
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