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From "Mamta A. Satoor (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (DERBY-5823) Multi-row insert fails on table without generated keys with RETURN_GENERATED_KEYS
Date Tue, 25 Sep 2012 16:38:08 GMT

     [ https://issues.apache.org/jira/browse/DERBY-5823?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Mamta A. Satoor updated DERBY-5823:
-----------------------------------

    Labels: derby_triage10_10  (was: )
    
> Multi-row insert fails on table without generated keys with RETURN_GENERATED_KEYS
> ---------------------------------------------------------------------------------
>
>                 Key: DERBY-5823
>                 URL: https://issues.apache.org/jira/browse/DERBY-5823
>             Project: Derby
>          Issue Type: Bug
>          Components: JDBC
>    Affects Versions: 10.7.1.1, 10.8.2.2, 10.9.1.0, 10.10.0.0
>            Reporter: Kristian Waagan
>            Priority: Minor
>              Labels: derby_triage10_10
>         Attachments: derby-5823-1a-regression_test.diff
>
>
> Exeuting an insert that results in multiple rows being inserted into a table without
any generated keys defined fails if the JDBC statement is configured to return generated keys.
Example stack trace:
> Caused by: ERROR XSCH4: Conglomerate could not be created.
>         at org.apache.derby.iapi.error.StandardException.newException(StandardException.java:268)
>         at org.apache.derby.impl.store.access.heap.Heap.create(Heap.java:296)
>         at org.apache.derby.impl.store.access.heap.HeapConglomerateFactory.createConglomerate(HeapConglomerateFactory.java:206)
>         at org.apache.derby.impl.store.access.RAMTransaction.createConglomerate(RAMTransaction.java:820)
>         at org.apache.derby.impl.sql.execute.TemporaryRowHolderImpl.insert(TemporaryRowHolderImpl.java:302)
>         at org.apache.derby.impl.sql.execute.InsertResultSet.normalInsertCore(InsertResultSet.java:1007)
>         at org.apache.derby.impl.sql.execute.InsertResultSet.open(InsertResultSet.java:508)
>         at org.apache.derby.impl.sql.GenericPreparedStatement.executeStmt(GenericPreparedStatement.java:443)
>         at org.apache.derby.impl.sql.GenericPreparedStatement.execute(GenericPreparedStatement.java:324)
>         at org.apache.derby.impl.jdbc.EmbedStatement.executeStatement(EmbedStatement.java:1242)
>         ... 30 more
> This happens only with multi-row inserts, and only with the embedded driver (the client
driver uses IDENTITY_VAL_LOCAL).
> The problem is that Derby tries to create a temporary conglomerate with a zero-length
row template. A guard against this scenario is probably missing.
> FYI, the transition threshold (from in-memory to on-disk) is currently five rows.
> I marked versions back to 10.7 as affected, but this bug probably goes back all the way.

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