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https://issues.apache.org/jira/browse/TINKERPOP-1753?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16130954#comment-16130954
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Martin Tapp commented on TINKERPOP-1753:
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NumberHelp seems to be ok because the sum works and correctly returns a map of
doubles in the group by. I think it starts at the OrderLocalStep. I see the
ChainedComparator defaulting to Order.incr, but have no idea where the Integer
constraint kicks-in.
> OrderStep not able to order by non-integer numbers
> --------------------------------------------------
>
> Key: TINKERPOP-1753
> URL: https://issues.apache.org/jira/browse/TINKERPOP-1753
> Project: TinkerPop
> Issue Type: Bug
> Components: process
> Affects Versions: 3.2.5
> Reporter: Daniel Kuppitz
>
> {{order()}} and {{order(local)}} sometimes fail to sort by non-integer
> numbers. In some cases it works, but the following pattern (non-integer map
> values?) seems broken:
> {noformat}
> gremlin>
> g.V().hasLabel("person").group().by("name").by(outE().values("weight").sum()).order(local).by(values)
> java.lang.Double cannot be cast to java.lang.Integer
> Type ':help' or ':h' for help.
> Display stack trace? [yN]
> {noformat}
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