Rajeshwar Rao created DRILL-5959:
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Summary: Unable to apply Union on multiple select query
expressions
Key: DRILL-5959
URL: https://issues.apache.org/jira/browse/DRILL-5959
Project: Apache Drill
Issue Type: Bug
Components: Client - JDBC
Affects Versions: 1.11.0, 1.10.0
Reporter: Rajeshwar Rao
Priority: Minor
Fix For: Future
Unable to combine the result sets of more than two separate query expressions
example :
select color, Paul , 'Paul' name
from mysql.devcdp25.pivtest
union all
select color, John , 'John' name
from mysql.devcdp25.pivtest
union all
select color, Tim , 'Tim' name
from mysql.devcdp25.pivtest
getting the following error :
Query Failed: An Error Occurred
org.apache.drill.common.exceptions.UserRemoteException: DATA_READ ERROR: The
JDBC storage plugin failed while trying setup the SQL query. sql SELECT * FROM
(SELECT `color`, `Paul`, 'Paul' AS `name` FROM `devcdp25`.`pivtest` UNION ALL
SELECT `color`, `John`, 'John' AS `name` FROM `devcdp25`.`pivtest`) UNION ALL
SELECT `color`, `Tim`, 'Tim' AS `name` FROM `devcdp25`.`pivtest` plugin mysql
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