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https://issues.apache.org/jira/browse/KYLIN-4314?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17028094#comment-17028094
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ASF GitHub Bot commented on KYLIN-4314:
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shaofengshi commented on pull request #1088: KYLIN-4314 extend intersect_count
and add intersect_value UDAF
URL: https://github.com/apache/kylin/pull/1088
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> Support union in intersect_count() function
> -------------------------------------------
>
> Key: KYLIN-4314
> URL: https://issues.apache.org/jira/browse/KYLIN-4314
> Project: Kylin
> Issue Type: Improvement
> Components: Query Engine
> Reporter: Shao Feng Shi
> Assignee: Shao Feng Shi
> Priority: Minor
> Fix For: v2.6.5, v3.1.0
>
>
> The current version of "intersect_count" only support "intersect" operation.
> While in some cases, we may union some collections(bitmaps) first, and then
> intersect with other collections. For example:
>
> intersect_count(user_id, page_id, array['search', 'view', 'order']);
> -- this calculation how many users did "search", and then "view", and then
> make the "order".
>
> intersect_count(user_id, page_id, array['search|view', 'order']);
> -- this calculation how many users did "search" or "view" (any of them) , and
> then make the "order".
>
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