[DRILL-1842] SELECT COUNT DISTINCT with HAVING fails to plan the query

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 0.6.0
• Fix Version/s: 0.9.0
• Component/s: Query Planning & Optimization
• Assignee: Aman Sinha
• Reporter: Chris Matta
• Due: 07/Jan/15
• Created: 11/Dec/14 14:37
• Updated: 29/Apr/15 07:40
• Resolved: 29/Apr/15 07:40

Description

Tableau is using the following query to get the distinct count of a measure:

SELECT COUNT(DISTINCT `custview`.`age`) AS `ctd_age_ok` FROM `mfs.views`.`nestedclickview` `nestedclickview` INNER JOIN `mfs.views`.`custview` `custview` ON (`nestedclickview`.`cust_id` = `custview`.`cust_id`) HAVING (COUNT(1) > 0);

And it fails on 0.06r2 with a planing error.

Interestingly if I remove the HAVING(COUNT(1)>0) statement at the end it works:

: jdbc:drill:zk=172.16.1.175:5181,172.16.1.1> SELECT COUNT(DISTINCT `custview`.`age`) AS `ctd_age_ok` FROM `mfs.views`.`nestedclickview` `nestedclickview` INNER JOIN `mfs.views`.`custview` `custview` ON (`nestedclickview`.`cust_id` = `custview`.`cust_id`);

+------------+ 
| ctd_age_ok | 
+------------+ 
| 5          | 
+------------+ 
1 row selected (4.776 seconds)