[jira] [Assigned] (IGNITE-7822) SQL Query with union and left join produces "Column not found" error

["Taras Ledkov (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/IGNITE-7822?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Taras Ledkov reassigned IGNITE-7822:
------------------------------------

    Assignee: Taras Ledkov

> SQL Query with union and left join produces "Column not found" error
> --------------------------------------------------------------------
>
>                 Key: IGNITE-7822
>                 URL: https://issues.apache.org/jira/browse/IGNITE-7822
>             Project: Ignite
>          Issue Type: Bug
>          Components: sql
>    Affects Versions: 2.1, 2.3
>            Reporter: Pavel Vinokurov
>            Assignee: Taras Ledkov
>            Priority: Major
>
>  
>  
> Initial script:
>  
> CREATE TABLE Person (id INTEGER PRIMARY KEY, company_id INTEGER, salary DECIMAL);
> CREATE TABLE Company (id INTEGER PRIMARY KEY, name VARCHAR);
> CREATE TABLE Company_Value (id INTEGER PRIMARY KEY, company_id INTEGER, market_value DECIMAL);
> INSERT INTO Person (id, company_id, salary) VALUES (1, 1, 100), (2, 2, 200), (3, 3, 300);
> INSERT INTO Company (id, name) VALUES (1, 'n1'), (2, 'n2'), (3, 'n3');
> INSERT INTO Company_Value (id, company_id, market_value) VALUES (1, 1, 10000), (2, 2, 20000), (3, 3, 30000); CREATE TABLE Address (id INTEGER PRIMARY KEY, person_id INTEGER, city VARCHAR);INSERT INTO Person (id, company_id, salary) VALUES (1, 1, 100), (2, 2, 200), (3, 3, 300);INSERT INTO Address (id, person_id, city) VALUES (1, 1, 'san francisco'), (2, 2, 'paris'), (3, 3, 'new york');INSERT INTO Company (id, name) VALUES (1, 'n1'), (2, 'n2'), (3, 'n3');INSERT INTO Company_Value (id, company_id, market_value) VALUES (1, 1, 10000), (2, 2, 20000), (3, 3, 30000);
>  
> Query:
> SELECT a.idFROM  (SELECT     p1.id as pid,     p1.salary,     p1.company_id   FROM Person p1   WHERE p1.id = 1   UNION   SELECT     p2.id as pid,     p2.salary,     p2.company_id   FROM Person p2   WHERE p2.id = 2)  p  LEFT JOIN Company c ON p.company_id = c.id  LEFT JOIN Company_Value cv ON c.id = cv.company_id  LEFT JOIN Address a ON a.person_id = p.pid;
>  
> Result:
> Exception:Caused by: org.h2.jdbc.JdbcSQLException: Column "P__Z2.ID" not found; SQL statement:SELECTC__Z3.ID __C2_0FROM PUBLIC.COMPANY C__Z3  LEFT OUTER JOIN PUBLIC.COMPANY_VALUE CV__Z4  ON C__Z3.ID = CV__Z4.COMPANY_ID  LEFT OUTER JOIN PUBLIC.ADDRESS A__Z5  ON A__Z5.PERSON_ID = P__Z2.IDORDER BY 1 [42122-195]
>  



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