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https://issues.apache.org/jira/browse/JENA-1126?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15124984#comment-15124984
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ASF subversion and git services commented on JENA-1126:
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Commit a523a4066af5af5c6b1cc9d6504ba4d247f38df4 in jena's branch
refs/heads/master from [~andy.seaborne]
[ https://git-wip-us.apache.org/repos/asf?p=jena.git;h=a523a40 ]
JENA-1126: Clean up.
Introduce ExprLib.evalOrNull.
> Make SAMPLE avoid undefs/errors if there are valid choices.
> -----------------------------------------------------------
>
> Key: JENA-1126
> URL: https://issues.apache.org/jira/browse/JENA-1126
> Project: Apache Jena
> Issue Type: Improvement
> Components: ARQ
> Reporter: Andy Seaborne
> Priority: Minor
>
> From
> https://lists.w3.org/Archives/Public/public-sparql-dev/2016JanMar/0005.html
> {noformat}SAMPLE({1, 2, error}){noformat} is error currently (for any order).
> It tends to favour errors as that is checked before a sampling.
> It can be 1 or 2. All are right but returning a value if possible is more
> helpful.
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