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https://issues.apache.org/jira/browse/EMPIREDB-250?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Rainer Döbele resolved EMPIREDB-250.
------------------------------------
Resolution: Fixed
Solution provided by Jan
> DBDDLGenerator generates wrong SQL for Views with DBCombinedCmd
> ---------------------------------------------------------------
>
> Key: EMPIREDB-250
> URL: https://issues.apache.org/jira/browse/EMPIREDB-250
> Project: Empire-DB
> Issue Type: Bug
> Components: Core
> Affects Versions: empire-db-2.4.5
> Reporter: jan
> Assignee: jan
> Priority: Critical
> Fix For: empire-db-2.4.7
>
>
> When you declare a view like
> @Override
> public DBCommandExpr createCommand() {
>
> TTable1 T1 = db.T_ONE;
> TTable2 T2 = db.T_TWO;
> DBCommand c1 = db.createCommand();
> c1.select(T1.ID);
> DBCommand c2 = db.createCommand();
> c2.select(T2.ID);
> return t1.union(t2);
>
> }
> which results in
> CREATE VIEW v1 (ID)
> AS
> ((SELECT t3.ID
> FROM TABLE1 t3)
> UNION
> (SELECT t4.ID
> FROM TABLE2 t4));
> if you run this command on MySQL (or MariaDB) you get ERROR 1064, because its
> not valid.
> Whyever MySQL/MariaDB does not like the double (( )). Running that statement
> without creating the view works.
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