[jira] [Updated] (JENA-1317) Property path with wildcard hack fails to consider incoming path

["Lorenz Bühmann (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/JENA-1317?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Lorenz Bühmann updated JENA-1317:
---------------------------------
    Description: 
It looks like the evaluation of a property path with an alternative of a non-existing property and it's negation fails:

Data (data.ttl):
```
@prefix :    <http://example.com/> .
:a :p :b .
```

Query (query.txt):
```
PREFIX : <http://example.com/>
SELECT ?u {
:b ^(:p1|!:p1) ?u .
}
```

Algebra:
```
(project (?u)
    (path ?u (alt <http://example.com/p1> (notoneof <http://example.com/p1>)) <http://example.com/b>))
```

Called with 
`sparql --data data.ttl --query query.txt --explain`l

Originally reported here: (http://stackoverflow.com/questions/43317635/sparql-path-between-two-nodes/43319876#43319876)

  was:
It looks like the evaluation of a property path with an alternative of a non-existing property and it's negation fails:

Data (data.ttl):
```
@prefix :    <http://example.com/> .
:a :p :b .
```

Query (query.txt):
```
PREFIX : <http://example.com/>
SELECT ?u {
:b ^(:p1|!:p1) ?u .
}
```

Algebra:
```
(project (?u)
    (path ?u (alt <http://example.com/p1> (notoneof <http://example.com/p1>)) <http://example.com/b>))
```

Called with 
`sparql --data data.ttl --query query.txt --explain`


> Property path with wildcard hack fails to consider incoming path
> ----------------------------------------------------------------
>
>                 Key: JENA-1317
>                 URL: https://issues.apache.org/jira/browse/JENA-1317
>             Project: Apache Jena
>          Issue Type: Bug
>          Components: ARQ
>    Affects Versions: Jena 3.2.0
>            Reporter: Lorenz Bühmann
>
> It looks like the evaluation of a property path with an alternative of a non-existing property and it's negation fails:
> Data (data.ttl):
> ```
> @prefix :    <http://example.com/> .
> :a :p :b .
> ```
> Query (query.txt):
> ```
> PREFIX : <http://example.com/>
> SELECT ?u {
> :b ^(:p1|!:p1) ?u .
> }
> ```
> Algebra:
> ```
> (project (?u)
>     (path ?u (alt <http://example.com/p1> (notoneof <http://example.com/p1>)) <http://example.com/b>))
> ```
> Called with 
> `sparql --data data.ttl --query query.txt --explain`l
> Originally reported here: (http://stackoverflow.com/questions/43317635/sparql-path-between-two-nodes/43319876#43319876)



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