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From "Ilya Kasnacheev (JIRA)" <j...@apache.org>
Subject [jira] [Created] (IGNITE-12075) Wrong table alias when SUM used inside CASE WHEN
Date Thu, 15 Aug 2019 11:45:00 GMT
Ilya Kasnacheev created IGNITE-12075:
----------------------------------------

             Summary: Wrong table alias when SUM used inside CASE WHEN
                 Key: IGNITE-12075
                 URL: https://issues.apache.org/jira/browse/IGNITE-12075
             Project: Ignite
          Issue Type: Bug
          Components: sql
    Affects Versions: 2.7.5
            Reporter: Ilya Kasnacheev


https://stackoverflow.com/questions/57472293/ignite-failed-to-run-reduce-query-locally

Consider the following queries: 

{code}
create table user (id int primary key, name varchar);
SELECT CASE WHEN id = 2016 THEN SUM(id) END FROM user GROUP BY id;
{code}

Will cause splitter to try executing wrong SQL:

```Caused by: org.h2.jdbc.JdbcSQLException: Столбец "__Z0.ID" не найден
Column "__Z0.ID" not found; SQL statement:
SELECT
CASE  WHEN (__Z0.ID = 2016) THEN SUM(__C0_0) END __C0_0
FROM PUBLIC.__T0 [42122-197]```



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