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https://issues.apache.org/jira/browse/DRILL-3268?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14612328#comment-14612328
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Victoria Markman commented on DRILL-3268:
-----------------------------------------
Verified fixed in 1.1
#Tue Jun 30 14:50:20 EDT 2015
git.commit.id.abbrev=e3fc7e9
Tests are in: Functional/Passing/window_functions/empty_over_clause
> queries with empty OVER() clause return empty result set
> --------------------------------------------------------
>
> Key: DRILL-3268
> URL: https://issues.apache.org/jira/browse/DRILL-3268
> Project: Apache Drill
> Issue Type: Bug
> Components: Execution - Relational Operators
> Reporter: Deneche A. Hakim
> Assignee: Steven Phillips
> Labels: window_function
> Fix For: 1.1.0
>
> Attachments: DRILL-3268.1.patch.txt
>
>
> The following query returns, incorrectly, an empty result set:
> {noformat}
> 0: jdbc:drill:zk=local> SELECT employee_id, position_id, salary, SUM(salary)
> OVER() FROM cp.`employee.json` LIMIT 1000;
> +--------------+--------------+---------+---------+
> | employee_id | position_id | salary | EXPR$3 |
> +--------------+--------------+---------+---------+
> +--------------+--------------+---------+---------+
> No rows selected (0.287 seconds)
> {noformat}
> DRILL-1862 is required otherwise such queries won't plan at all.
> The problem is caused by WindowFrameRecordBatch.buildSchema() which assumes
> the very first batch to be an empty batch that only contains the schema,
> which is not the case when using OVER()
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