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https://issues.apache.org/jira/browse/PHOENIX-945?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14163026#comment-14163026
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Hudson commented on PHOENIX-945:
--------------------------------
SUCCESS: Integrated in Phoenix | 3.0 | Hadoop1 #246 (See
[https://builds.apache.org/job/Phoenix-3.0-hadoop1/246/])
PHOENIX-945 Support correlated subqueries in comparison without ANY/SOME/ALL
(maryannxue: rev b1cbd41af2c65fdceba4df372f19a7b9272594fc)
* phoenix-core/src/main/java/org/apache/phoenix/compile/SubqueryRewriter.java
* phoenix-core/src/main/java/org/apache/phoenix/parse/ParseNodeFactory.java
* phoenix-core/src/it/java/org/apache/phoenix/end2end/SubqueryIT.java
* phoenix-core/src/main/java/org/apache/phoenix/compile/StatementNormalizer.java
> Support correlated subqueries in comparison without ANY/SOME/ALL
> ----------------------------------------------------------------
>
> Key: PHOENIX-945
> URL: https://issues.apache.org/jira/browse/PHOENIX-945
> Project: Phoenix
> Issue Type: Sub-task
> Affects Versions: 3.0.0, 4.0.0, 5.0.0
> Reporter: Maryann Xue
> Assignee: Maryann Xue
> Fix For: 3.0.0, 4.0.0, 5.0.0
>
> Attachments: 945-2.patch, 945.patch
>
> Original Estimate: 336h
> Remaining Estimate: 336h
>
> Example:
> SELECT employee_number, name
> FROM employees AS Bob
> WHERE salary > (
> SELECT AVG(salary)
> FROM employees
> WHERE department = Bob.department);
> Basically we can optimize these queries into join queries, like:
> SELECT employees.employee_number, employees.name
> FROM employees INNER JOIN
> (SELECT department, AVG(salary) AS department_average
> FROM employees
> GROUP BY department) AS temp ON employees.department = temp.department
> WHERE employees.salary > temp.department_average;
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