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https://issues.apache.org/jira/browse/JENA-1517?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16430468#comment-16430468
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ASF GitHub Bot commented on JENA-1517:
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GitHub user jeremy-coulon opened a pull request:
https://github.com/apache/jena/pull/393
JENA-1517: Implement missing override in OpVarsPattern visitor
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/jeremy-coulon/jena bug-opquadblock-jira-1517
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/jena/pull/393.patch
To close this pull request, make a commit to your master/trunk branch
with (at least) the following in the commit message:
This closes #393
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commit 537ffba8c3802595b9a35e5ac423acb54a775bb6
Author: Jeremy Coulon <jeremy.coulon@...>
Date: 2018-04-09T12:40:51Z
Implement missing override in OpVarsPattern visitor
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> Some queries not working when using OpQuadBlock
> -----------------------------------------------
>
> Key: JENA-1517
> URL: https://issues.apache.org/jira/browse/JENA-1517
> Project: Apache Jena
> Issue Type: Bug
> Components: ARQ
> Affects Versions: Jena 3.6.0
> Reporter: Jeremy Coulon
> Priority: Major
>
> I am using a custom QueryEngine that rewrites algebra. I am transforming
> OpBGP into OpQuadBlock (not OpQuadPattern).
> Most queries work fine except when using one of the following:
> * MINUS
> * FILTER EXISTS
> * FILTER NOT EXISTS
> I tracked the issue down to this visitor:
> org.apache.jena.sparql.algebra.OpVarsPattern.
> An override for visit(OpQuadBlock) is missing.
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