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https://issues.apache.org/jira/browse/DRILL-2174?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Jacques Nadeau updated DRILL-2174:
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Component/s: (was: Execution - Relational Operators)
Query Planning & Optimization
> Flatten should work from within a filter
> ----------------------------------------
>
> Key: DRILL-2174
> URL: https://issues.apache.org/jira/browse/DRILL-2174
> Project: Apache Drill
> Issue Type: Improvement
> Components: Query Planning & Optimization
> Reporter: Rahul Challapalli
> Assignee: Chris Westin
> Fix For: Future
>
>
> git.commit.id.abbrev=3e33880
> We should be able to use flatten from within a filter when the output of
> flatten is scalars.
> Currently we can use flatten with order by and group by operators (when the
> output of flatten is scalars).
> Data Set :
> {code}
> {
> "id" : 1,
> "lst" : [1,2,3]
> }
> {code}
> The below queries work :
> {code}
> select d.id from `temp.json` d order by flatten(d.lst);
> select MAX(d.id) from `temp.json` d group by flatten(d.lst);
> {code}
> The below query fails :
> {code}
> select d.uid from `temp.json` d where flatten(d.lst) > 5;
> {code}
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