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Posted to dev@hugegraph.apache.org by GitBox <gi...@apache.org> on 2022/06/13 01:58:27 UTC
[GitHub] [incubator-hugegraph] Ckuangf opened a new issue, #1900: [Bug] gremlin查询结果不符合预期
Ckuangf opened a new issue, #1900:
URL: https://github.com/apache/incubator-hugegraph/issues/1900
### Bug 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/hugegraph/hugegraph/issues) 与 [FAQ](https://hugegraph.github.io/hugegraph-doc/guides/faq.html) 中没有相同 / 重复问题
### Environment (环境信息)
- Server Version: v0.11.x
- Backend: RocksDB x nodes, HDD or SSD
- OS: xx CPUs, xx G RAM, Centos 7.x
- Data Size: xx vertices, xx edges <!-- (like 1000W 点, 9000W 边) -->
### Expected & Actual behavior (期望与实际表现)
实际上在一度查询时正常，二度查询时只能查出来单条路径：
使用数据 huge中构造的点边数据如下：
二度查询时，只能查询出来第二条路径：
一度查询时,可以查询出来路径一和路径二
期望可以正常查询出2条路径
实际上通过gremliny验证gremlin语句时：
一度查询：
二度查询 两条结果正常查询出来：
gremliny地址：
https://gremlify.com/ida02brvl5/1
gremliny 构造数据：
g.addV('Vertex').as('1').
addV('Vertex').as('2').
addV('Vertex').as('3').
addV('Vertex').as('4').
addE('child').from('1').to('2').addE('child').
from('2').to('3').addE('child').from('4').
to('3')
查询语句：
g.V(2853).repeat(inE("child").outV().simplePath()).until(or(inE().count().is(0),loops().is(eq(2)))).path()
任意类似的点边关系在huge中查询结果一致，二度查询时均会缺失只有一度结果那条路径
### 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 #1900: [Bug] gremlin查询结果不符合预期
Posted by GitBox <gi...@apache.org>.
javeme commented on issue #1900:
URL: https://github.com/apache/incubator-hugegraph/issues/1900#issuecomment-1154065586
我这边使用`inE().count().is(0)`方式的查询结果如下：
```json
{
"requestId": "32f89c6f-a8cf-4717-baed-0a8631684adf",
"status": {
"message": "",
"code": 200,
"attributes": {
}
},
"result": {
"data": [
{
"labels": [],
"objects": [
{
"id": 3,
"label": "node",
"type": "vertex",
"properties": {
}
},
{
"id": "L4>1>>L3",
"label": "child",
"type": "edge",
"outV": 4,
"outVLabel": "node",
"inV": 3,
"inVLabel": "node",
"properties": {
}
},
{
"id": 4,
"label": "node",
"type": "vertex",
"properties": {
}
}
]
},
{
"labels": [],
"objects": [
{
"id": 3,
"label": "node",
"type": "vertex",
"properties": {
}
},
{
"id": "L2>1>>L3",
"label": "child",
"type": "edge",
"outV": 2,
"outVLabel": "node",
"inV": 3,
"inVLabel": "node",
"properties": {
}
},
{
"id": 2,
"label": "node",
"type": "vertex",
"properties": {
}
},
{
"id": "L1>1>>L2",
"label": "child",
"type": "edge",
"outV": 1,
"outVLabel": "node",
"inV": 2,
"inVLabel": "node",
"properties": {
}
},
{
"id": 1,
"label": "node",
"type": "vertex",
"properties": {
}
}
]
}
],
"meta": {
}
}
}
```
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[GitHub] [incubator-hugegraph] imbajin commented on issue #1900: [Bug] gremlin查询结果不符合预期
Posted by GitBox <gi...@apache.org>.
imbajin commented on issue #1900:
URL: https://github.com/apache/incubator-hugegraph/issues/1900#issuecomment-1153760368
是的, 可以用 rest-api 里的对比一下, 可以更快排除和定位问题 (当然基于最新server是更好)
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[GitHub] [incubator-hugegraph] Ckuangf commented on issue #1900: [Bug] gremlin查询结果不符合预期
Posted by GitBox <gi...@apache.org>.
Ckuangf commented on issue #1900:
URL: https://github.com/apache/incubator-hugegraph/issues/1900#issuecomment-1153501631
> 感谢提供信息, 有试过用 kneighbor 接口 (POST 版, 可带 path) 尝试查询2度路径, 看看是否也有同样问题么?
>
> 另外版本是最新的 0.12-release 么
使用的是0.11.2版本， 有试过用 kneighbor 接口 (POST 版, 可带 path) 这个接口指的是使用restAPI进行查询的接口么
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[GitHub] [incubator-hugegraph] imbajin commented on issue #1900: [Bug] gremlin查询结果不符合预期
Posted by GitBox <gi...@apache.org>.
imbajin commented on issue #1900:
URL: https://github.com/apache/incubator-hugegraph/issues/1900#issuecomment-1153397929
感谢提供信息, 有试过用 kneighbor 接口 (POST 版, 可带 path) 尝试查询2度路径, 看看是否也有同样问题么?
另外版本是最新的 0.12-release 么
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[GitHub] [incubator-hugegraph] Ckuangf commented on issue #1900: [Bug] gremlin查询结果不符合预期
Posted by GitBox <gi...@apache.org>.
Ckuangf commented on issue #1900:
URL: https://github.com/apache/incubator-hugegraph/issues/1900#issuecomment-1154776159
感谢
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[GitHub] [incubator-hugegraph] javeme commented on issue #1900: [Bug] gremlin查询结果不符合预期
Posted by GitBox <gi...@apache.org>.
javeme commented on issue #1900:
URL: https://github.com/apache/incubator-hugegraph/issues/1900#issuecomment-1154058976
请使用规范语句查询：
```java
// 注意是 inE().count().is(0)，而非 inE().is(0)
g.V(3).repeat(inE('child').outV().simplePath())
.until(or(inE().count().is(0),loops().is(eq(2))))
.path()
```
整理了一下示例数据：
```java
schema=graph.schema();
schema.vertexLabel('node').useCustomizeNumberId().create();
schema.edgeLabel('child').sourceLabel('node').targetLabel('node').create();
g.addV('node').property(id, 1).as('1')
.addV('node').property(id, 2).as('2')
.addV('node').property(id, 3).as('3')
.addV('node').property(id, 4).as('4')
.addE('child').from('1').to('2')
.addE('child').from('2').to('3')
.addE('child').from('4').to('3')
```
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[GitHub] [incubator-hugegraph] Ckuangf closed issue #1900: [Bug] gremlin查询结果不符合预期
Posted by GitBox <gi...@apache.org>.
Ckuangf closed issue #1900: [Bug] gremlin查询结果不符合预期
URL: https://github.com/apache/incubator-hugegraph/issues/1900
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