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From Rick Hillegas <rick.hille...@oracle.com>
Subject Re: some testing of MERGE feature
Date Wed, 09 Jul 2014 12:26:59 GMT
Hi Mamta,

An assertion isn't expected, so this is a bug I need to look at.

Thanks,
-Rick

On 7/7/14 4:25 PM, Mamta Satoor wrote:
> Hi Rick,
> I did some basic testing of MERGE feature and observed a behavior that 
> I wanted to run by you to see if it the expected behavior.
> I have 2 really simple tables with views defined on them.
> CREATE TABLE employee (
> employee_id int,
> first_name  VARCHAR(20),
> last_name   VARCHAR(20),
> dept_no     int,
> salary      int);
> create view v1employee as select * from employee;
> INSERT INTO employee VALUES (1, 'Dan', 'Morgan', 10, 100000);
> INSERT INTO employee VALUES (2, 'Jack', 'Cline', 20, 100000);
> INSERT INTO employee VALUES (3, 'Elizabeth', 'Scott', 20, 50000);
> INSERT INTO employee VALUES (4, 'Jackie', 'Stough', 20, 40000);
> INSERT INTO employee VALUES (5, 'Richard', 'Foote', 20, 30000);
> INSERT INTO employee VALUES (6, 'Joe', 'Johnson', 20, 70000);
> INSERT INTO employee VALUES (7, 'Clark', 'Urling', 20, 90000);
> CREATE TABLE bonuses (
> employee_id int, bonus int DEFAULT 100);
> create view v2bonuses as select * from bonuses;
> INSERT INTO bonuses (employee_id) VALUES (1);
> INSERT INTO bonuses (employee_id) VALUES (2);
> INSERT INTO bonuses (employee_id) VALUES (4);
> INSERT INTO bonuses (employee_id) VALUES (6);
> INSERT INTO bonuses (employee_id) VALUES (7);
> I tried using the view as the source in the MERGE statement and got 
> following error. May be I misunderstood it, but I thought views are 
> allowed for source. I tried this on trunk using classes last week. thanks.
> MERGE INTO bonuses B
> USING v1employee E
> ON B.employee_id = E.employee_id
> WHEN MATCHED AND E.dept_no=20 THEN
>   UPDATE SET B.bonus = E.salary * 0.1
> WHEN NOT MATCHED AND dept_no=20 THEN
>   INSERT (employee_id, bonus)
>   VALUES (E.employee_id, E.salary * 0.05);
>
> ERROR XJ001: Java exception: 'ASSERT FAILED Column EMPLOYEE.SALARY has 
> illegal MERGE table id: 0: 
> org.apache.derby.shared.common.sanity.AssertFailure'.
>
> java.sql.SQLException: Java exception: 'ASSERT FAILED Column 
> EMPLOYEE.SALARY has illegal MERGE table id: 0: 
> org.apache.derby.shared.common.sanity.AssertFailure'.
>
> at 
> org.apache.derby.impl.jdbc.SQLExceptionFactory.getSQLException(SQLExceptionFactory.java:107)
>
> at 
> org.apache.derby.impl.jdbc.SQLExceptionFactory.getSQLException(SQLExceptionFactory.java:133)
>
> at org.apache.derby.impl.jdbc.Util.seeNextException(Util.java:255)
>
> at org.apache.derby.impl.jdbc.Util.javaException(Util.java:277)
>
> at 
> org.apache.derby.impl.jdbc.TransactionResourceImpl.wrapInSQLException(TransactionResourceImpl.java:437)
>
> at 
> org.apache.derby.impl.jdbc.TransactionResourceImpl.handleException(TransactionResourceImpl.java:353)
>
> at 
> org.apache.derby.impl.jdbc.EmbedConnection.handleException(EmbedConnection.java:2396)
>
> at 
> org.apache.derby.impl.jdbc.ConnectionChild.handleException(ConnectionChild.java:82)
>
> at 
> org.apache.derby.impl.jdbc.EmbedStatement.execute(EmbedStatement.java:691)
>
> at 
> org.apache.derby.impl.jdbc.EmbedStatement.execute(EmbedStatement.java:631)
>
> at org.apache.derby.impl.tools.ij.ij.executeImmediate(ij.java:367)
>
> at org.apache.derby.impl.tools.ij.utilMain.doCatch(utilMain.java:527)
>
> at 
> org.apache.derby.impl.tools.ij.utilMain.runScriptGuts(utilMain.java:369)
>
> at org.apache.derby.impl.tools.ij.utilMain.go(utilMain.java:245)
>
> at org.apache.derby.impl.tools.ij.Main.go(Main.java:229)
>
> at org.apache.derby.impl.tools.ij.Main.mainCore(Main.java:184)
>
> at org.apache.derby.impl.tools.ij.Main.main(Main.java:75)
>
> at org.apache.derby.tools.ij.main(ij.java:59)
>
> Caused by: ERROR XJ001: Java exception: 'ASSERT FAILED Column 
> EMPLOYEE.SALARY has illegal MERGE table id: 0: 
> org.apache.derby.shared.common.sanity.AssertFailure'.
>
> at 
> org.apache.derby.iapi.error.StandardException.newException(StandardException.java:290)
>
> at 
> org.apache.derby.impl.jdbc.SQLExceptionFactory.wrapArgsForTransportAcrossDRDA(SQLExceptionFactory.java:162)
>
> at 
> org.apache.derby.impl.jdbc.SQLExceptionFactory.getSQLException(SQLExceptionFactory.java:73)
>
> ... 17 more
>
> Caused by: org.apache.derby.shared.common.sanity.AssertFailure: ASSERT 
> FAILED Column EMPLOYEE.SALARY has illegal MERGE table id: 0
>
> at 
> org.apache.derby.shared.common.sanity.SanityManager.ASSERT(SanityManager.java:120)
>
> at 
> org.apache.derby.impl.sql.compile.MatchingClauseNode.getMergeTableID(MatchingClauseNode.java:1495)
>
> at 
> org.apache.derby.impl.sql.compile.MatchingClauseNode.getSelectListOffset(MatchingClauseNode.java:1444)
>
> at 
> org.apache.derby.impl.sql.compile.MatchingClauseNode.useGeneratedScan(MatchingClauseNode.java:1423)
>
> at 
> org.apache.derby.impl.sql.compile.MatchingClauseNode.adjustThenColumns(MatchingClauseNode.java:1380)
>
> at 
> org.apache.derby.impl.sql.compile.MatchingClauseNode.generateInsertUpdateRow(MatchingClauseNode.java:1330)
>
> at 
> org.apache.derby.impl.sql.compile.MatchingClauseNode.generate(MatchingClauseNode.java:1237)
>
> at 
> org.apache.derby.impl.sql.compile.MergeNode.generate(MergeNode.java:1013)
>
> at 
> org.apache.derby.impl.sql.compile.StatementNode.generate(StatementNode.java:317)
>
> at 
> org.apache.derby.impl.sql.GenericStatement.prepMinion(GenericStatement.java:549)
>
> at 
> org.apache.derby.impl.sql.GenericStatement.prepare(GenericStatement.java:99)
>
> at 
> org.apache.derby.impl.sql.conn.GenericLanguageConnectionContext.prepareInternalStatement(GenericLanguageConnectionContext.java:1113)
>
> at 
> org.apache.derby.impl.jdbc.EmbedStatement.execute(EmbedStatement.java:682)
>
> ... 9 more
>


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