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From "Daniel John Debrunner (JIRA)" <j...@apache.org>
Subject [jira] Commented: (DERBY-3238) When table contains large LOB values (> ~32K) trigger execution fails for that row with ERROR XCL30: An IOException was thrown when reading a 'BLOB'
Date Mon, 03 Dec 2007 19:46:43 GMT

    [ https://issues.apache.org/jira/browse/DERBY-3238?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_12547962
] 

Daniel John Debrunner commented on DERBY-3238:
----------------------------------------------

The test fixtures do not close the statements they create. If they created the statement using
the utility methods instead then the statements would be closed automatically.

> When table contains large LOB values (> ~32K) trigger execution fails for that row
with ERROR XCL30: An IOException was thrown when reading a 'BLOB' 
> -----------------------------------------------------------------------------------------------------------------------------------------------------
>
>                 Key: DERBY-3238
>                 URL: https://issues.apache.org/jira/browse/DERBY-3238
>             Project: Derby
>          Issue Type: Bug
>    Affects Versions: 10.1.3.1, 10.2.2.0, 10.3.1.4, 10.3.2.1, 10.4.0.0
>            Reporter: Stan Bradbury
>            Assignee: Kathey Marsden
>         Attachments: blob_insert2.java, derby-3238_diff.txt, derby-3238_diffv2.txt
>
>
> See attached test case.  
> At execution/run-time a trigger that handles a row that contains a large LOB value will
fail with the following error and stack trace:
>  = = =
> Testing blob of size=1024
>  . . Now executing update to fire the trigger
> PASSED
> Testing blob of size=16384
>  . . Now executing update to fire the trigger
> PASSED
> Testing blob of size=32658
>  . . Now executing update to fire the trigger
> PASSED
> Testing blob of size=32659
>  . . Now executing update to fire the trigger
> Error! java.sql.SQLException: An IOException was thrown when reading a 'BLOB' from an
InputStream.
> java.sql.SQLException: An IOException was thrown when reading a 'BLOB' from an InputStream.
>         at org.apache.derby.impl.jdbc.SQLExceptionFactory.getSQLException(Unknown Source)
>         at org.apache.derby.impl.jdbc.Util.newEmbedSQLException(Unknown Source)
>         at org.apache.derby.impl.jdbc.Util.seeNextException(Unknown Source)
>         at org.apache.derby.impl.jdbc.TransactionResourceImpl.wrapInSQLException(Unknown
Source)
>         at org.apache.derby.impl.jdbc.TransactionResourceImpl.handleException(Unknown
Source)
>         at org.apache.derby.impl.jdbc.EmbedConnection.handleException(Unknown Source)
>         at org.apache.derby.impl.jdbc.ConnectionChild.handleException(Unknown Source)
>         at org.apache.derby.impl.jdbc.EmbedStatement.executeStatement(Unknown Source)
>         at org.apache.derby.impl.jdbc.EmbedStatement.execute(Unknown Source)
>         at org.apache.derby.impl.jdbc.EmbedStatement.executeUpdate(Unknown Source)
>         at blob_insert2.testBlob(blob_insert2.java:102)
>         at blob_insert2.main(blob_insert2.java:55)
> Caused by: java.sql.SQLException: Java exception: ': java.io.EOFException'.
>         at org.apache.derby.impl.jdbc.SQLExceptionFactory.getSQLException(Unknown Source)
>         at org.apache.derby.impl.jdbc.Util.newEmbedSQLException(Unknown Source)
>         at org.apache.derby.impl.jdbc.Util.javaException(Unknown Source)
>         at org.apache.derby.impl.jdbc.TransactionResourceImpl.wrapInSQLException(Unknown
Source)
>         ... 9 more
> Caused by: java.io.EOFException
>         at org.apache.derby.iapi.types.SQLBinary.readBinaryLength(Unknown Source)
>         at org.apache.derby.iapi.types.SQLBinary.readExternal(Unknown Source)
>         at org.apache.derby.iapi.types.SQLBinary.getValue(Unknown Source)
>         at org.apache.derby.iapi.types.SQLBinary.loadStream(Unknown Source)
>         at org.apache.derby.impl.sql.execute.UpdateResultSet.objectifyStream(Unknown
Source)
>         at org.apache.derby.impl.sql.execute.UpdateResultSet.collectAffectedRows(Unknown
Source)
>         at org.apache.derby.impl.sql.execute.UpdateResultSet.open(Unknown Source)
>         at org.apache.derby.impl.sql.GenericPreparedStatement.execute(Unknown Source)
>         ... 5 more

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