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https://issues.apache.org/jira/browse/DRILL-25?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13570795#comment-13570795
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Timothy Chen commented on DRILL-25:
-----------------------------------
After discussing with Jacques, this operator will be merged into Join operator
and not needing a separate operator.
> Implement AntiJoin Reference Operator
> -------------------------------------
>
> Key: DRILL-25
> URL: https://issues.apache.org/jira/browse/DRILL-25
> Project: Apache Drill
> Issue Type: New Feature
> Reporter: Timothy Chen
> Assignee: Timothy Chen
> Labels: logical
>
> AntiJoin (M)
> The antijoin operator works similarly to the filter operator. However, the
> exclusion or inclusion of a particular record is based on whether or not
> there is a match in the mask record stream. If a match is found in the mask
> record stream based on the provided conditions, the input record is excluded
> from output. In the case that no match is found within the mask stream, the
> input record is passed through untouched.
> { @id†: <opref>, op: “antijoin”,
> input: <input>,
> mask: <input>,
> conditions: [
> {relationship: <reltype>, left: <expr>, right: <expr>}, ...
> ]
> }
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