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Stephen Mallette commented on TINKERPOP-2520: --------------------------------------------- Been thinking about this one a bit. I think we should simply disallow things like: {code} g.V().order().by('name').by(reverse) g.V().order().by(reverse).by('name') g.V().order().by(reverse).by(shuffle) {code} You can simply: {code} g.V().order().by(reverse) {code} We have similar rules around {{shuffle}} already but they don't explicitly result in error - the {{shuffle}} steps in between comparators are just removed and the mode of the order only goes to {{shuffle}} if that is the last {{Comparator}}. This would not prevent: {code} // g.V().order().by('name',desc) g.V(). order().by('name'). order().by(reverse) {code} I think that rather that doing magic with {{shuffle}} (and trying to do the same with {{reverse}}) perhaps we just require Gremlin to be formed where multiple {{Comparator}} instances can't be present where {{shuffle}} and {{reverse}} are in play. > Add the ability to reverse the stream or a collection > ----------------------------------------------------- > > Key: TINKERPOP-2520 > URL: https://issues.apache.org/jira/browse/TINKERPOP-2520 > Project: TinkerPop > Issue Type: Improvement > Components: process > Affects Versions: 3.4.10 > Reporter: Kelvin R. Lawrence > Priority: Minor > > I had a Gremlin user ask me yesterday if there was a way to have the results > of a `path` step be reversed. Today you cannot do that using `from` and `to` > steps as the `from` label must appear before the `to` label in a path. In > thinking about this, perhaps adding a `reverse` option to order (on top of > `asc`,`desc` and `shuffle`) would be a nice addition to Gremlin. So you could > write something like: > {code:java} > g.V().out().out().path().order(local).by(reverse){code} > For this specific user they were union-ing a set of paths in different > directions and wanted to normalize them to all be in the same direction when > presented as results. -- This message was sent by Atlassian Jira (v8.3.4#803005)