Apache Drill Fails To Query MySQL View With Group By -

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i using

mysql version: 5.7.8 drill version: 1.7 , 1.8 mysql jdbc connector: mysql-connector-java-5.1.39-bin.jar

i have created view on mysql using following query:

create or replace view `mydb`.`customerview` select    `cust`.`id` `customer`,     `tnt`.`id` `tenant`    `mydb`.`customer` cust left join (     select         `t`.id id             `mydb`.`tenant` t     group t.id) tnt on     `cust`.`tenant`=`tnt`.`id`

please note above query purposely written reproduce problem when using group by.

in drill have created storage plugin named mydb following configuration:

{   "type": "jdbc",   "driver": "com.mysql.jdbc.driver",   "url": "jdbc:mysql://localhost:3306",   "username": "xxxx",   "password": "xxxx",   "enabled": true }

when issue following query sqlline.bat on windows:

select * mydb.`mydb`.`customerview`;

i following error:

error: data_read error: jdbc storage plugin failed while trying setup sql query.

sql select * mydb.customerview plugin mydb fragment 0:0

also, please note if remove group by in inner select query, error goes away.

please explain whats going on? or bug?


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