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Posted to dev@hugegraph.apache.org by "choeoe (via GitHub)" <gi...@apache.org> on 2026/10/12 10:31:24 UTC

[I] [Bug] ORDER BY on a Boolean-or-null grouping key throws ClassCastException [hugegraph]

choeoe opened a new issue, #3319:
URL: https://github.com/apache/hugegraph/issues/3319

   ### Bug Type (问题类型)
   
   rest-api (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: 1.7.0
   - Docker Image: `hugegraph/hugegraph:latest` as tested on 2026-09-27
   - Backend: default Docker standalone backend
   - Interface: Cypher REST endpoint
   
   
   ### Expected & Actual behavior (期望与实际表现)
   
   ```cypher
   CREATE (:L5 {b0: false, id: 0}),
          (:L4 {b0: true, id: 1}),
          (:L4 {id: 2});
   
   MATCH (n)
   OPTIONAL MATCH (n)-[r0:T1]->(n1 {s1: 'v4_4'})
   WITH n.b0 AS g, count(n1.id) AS c
   RETURN g, c ORDER BY g DESC;
   ```
   
   Expected: three rows for `null`, `true` and `false`, each with count `0`,
   ordered according to Cypher's descending null/Boolean ordering.
   
   Actual: execution fails and leaks a Java implementation exception:
   
   ```text
   class java.lang.String cannot be cast to class java.lang.Boolean
   ```
   
   ### Vertex/Edge example (问题点 / 边数据举例)
   
   ```javascript
   Three vertices are sufficient; one has `b0=false`, one has `b0=true`, and one
   omits `b0`. No `T1` edge is required.
   ```
   
   ### Schema [VertexLabel, EdgeLabel, IndexLabel] (元数据结构)
   
   ```javascript
   - Vertex labels: `L4`, `L5`
   - Properties: `b0` Boolean and nullable/missing; `id` integer
   - Edge label referenced by the optional pattern: `T1`
   - No secondary index is required.
   ```


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Re: [I] [Bug] ORDER BY on a Boolean-or-null grouping key throws ClassCastException [hugegraph]

Posted by "imbajin (via GitHub)" <gi...@apache.org>.
imbajin commented on issue #3319:
URL: https://github.com/apache/hugegraph/issues/3319#issuecomment-6232661523

   Try the latest docker image / code please, 1.8.0 is coming


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Re: [I] [Bug] ORDER BY on a Boolean-or-null grouping key throws ClassCastException [hugegraph]

Posted by "imbajin (via GitHub)" <gi...@apache.org>.
imbajin closed issue #3319: [Bug] ORDER BY on a Boolean-or-null grouping key throws ClassCastException
URL: https://github.com/apache/hugegraph/issues/3319


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