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Posted to dev@hugegraph.apache.org by "yspyhp (via GitHub)" <gi...@apache.org> on 2023/03/10 09:35:17 UTC

[GitHub] [incubator-hugegraph] yspyhp opened a new issue, #2158: 关于排序时空值的问题

yspyhp opened a new issue, #2158:
URL: https://github.com/apache/incubator-hugegraph/issues/2158

   ### Problem Type (问题类型)
   
   gremlin (结果不合预期)
   
   ### Before submit
   
   - [X] 我已经确认现有的 [Issues](https://github.com/apache/hugegraph/issues) 与 [FAQ](https://hugegraph.apache.org/docs/guides/faq/) 中没有相同 / 重复问题 (I have confirmed and searched that there are no similar problems in the historical issue and documents)
   
   ### Environment (环境信息)
   
   - Server Version: 1.0.0 (Apache Release Version)
   - Backend: RocksDB x nodes, HDD or SSD 
   - OS: xx CPUs, xx G RAM, Ubuntu 2x.x / CentOS 7.x 
   - Data Size:  xx vertices, xx edges <!-- (like 1000W 点, 9000W 边) -->
   
   
   ### Your Question (问题描述)
   
   g.V().hasLabel('school').or(has('alias', ConditionP.contains('985')),has('abels', ConditionP.contains('985'))).order().by('rank').values('name')
   求问
   根据rank正序排序时，rank为空的数据排在了前边，希望把为空的数据排在后边，应该怎么写？
   
   ### Vertex/Edge example (问题点 / 边数据举例)
   
   _No response_
   
   ### Schema [VertexLabel, EdgeLabel, IndexLabel] (元数据结构)
   
   _No response_


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[GitHub] [incubator-hugegraph] javeme commented on issue #2158: 关于排序时空值的问题

Posted by "javeme (via GitHub)" <gi...@apache.org>.
javeme commented on issue #2158:
URL: https://github.com/apache/incubator-hugegraph/issues/2158#issuecomment-1463756015

   please try `order().by(choose(values('rank'), identity(), constant(MAX_INT)))`
   


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[GitHub] [incubator-hugegraph] yspyhp commented on issue #2158: 关于排序时空值的问题

Posted by "yspyhp (via GitHub)" <gi...@apache.org>.
yspyhp commented on issue #2158:
URL: https://github.com/apache/incubator-hugegraph/issues/2158#issuecomment-1463807070

   成功了，多谢！


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[GitHub] [incubator-hugegraph] yspyhp closed issue #2158: 关于排序时空值的问题

Posted by "yspyhp (via GitHub)" <gi...@apache.org>.
yspyhp closed issue #2158: 关于排序时空值的问题
URL: https://github.com/apache/incubator-hugegraph/issues/2158


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