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https://issues.apache.org/jira/browse/TINKERPOP3-873?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14953593#comment-14953593
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Daniel Kuppitz commented on TINKERPOP3-873:
-------------------------------------------
{quote}
though we have a rule that order between steps isn't guaranteed to be preserved
{quote}
Another (unwritten) rule is, that {{order()}} should always be the last step
(which is more or less a consequence of the aforementioned rule). Thus, instead
of:
{code}
g.V().order().by('name', incr).fold()
{code}
...you should actually use:
{code}
g.V().fold().order(local).by('name', incr)
{code}
> FoldStep should default to using BulkSet for efficiency.
> --------------------------------------------------------
>
> Key: TINKERPOP3-873
> URL: https://issues.apache.org/jira/browse/TINKERPOP3-873
> Project: TinkerPop 3
> Issue Type: Improvement
> Components: process
> Affects Versions: 3.0.1-incubating
> Reporter: Marko A. Rodriguez
> Assignee: Marko A. Rodriguez
> Labels: breaking
> Fix For: 3.1.0-incubating
>
>
> This is easy, the problem is that:
> {code}
> GraphTraversal<S,List<E>> fold()
> {code}
> would become:
> {code}
> GraphTraversal<S,Set<E>> fold()
> {code}
> We could make {{BulkSet}} implement List as it does in fact contain all the
> elements inserted, just not in their respective insert order. Does {{List}}
> require that the insert order be preserved? {{UnorderedList}} (is that a
> thing?)
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