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From Øystein Grøvlen (JIRA) <derby-...@db.apache.org>
Subject [jira] Created: (DERBY-230) "Schema already exists" when creating a table
Date Wed, 20 Apr 2005 07:21:31 GMT
"Schema already exists" when creating a table
---------------------------------------------

         Key: DERBY-230
         URL: http://issues.apache.org/jira/browse/DERBY-230
     Project: Derby
        Type: Bug
  Components: SQL  
    Versions: 10.0.2.0, 10.0.2.1, 10.0.2.2, 10.1.0.0    
    Reporter: Øystein Grøvlen
 Attachments: Main.java

When running a multithreaded program where several threads in parallell create tables in a
schema that is not explicitly created, one often get the following exception:

ERROR X0Y68: Schema 'TESTSCHEMA' already exists.
    at org.apache.derby.iapi.error.StandardException.newException(StandardException.java:322)
    at org.apache.derby.impl.sql.catalog.DataDictionaryImpl.duplicateDescriptorException(DataDictionaryImpl.java:1512)
    at org.apache.derby.impl.sql.catalog.DataDictionaryImpl.addDescriptorNow(DataDictionaryImpl.java:1496)
    at org.apache.derby.impl.sql.catalog.DataDictionaryImpl.addDescriptor(DataDictionaryImpl.java:1478)
    at org.apache.derby.impl.sql.execute.CreateSchemaConstantAction.executeConstantAction(CreateSchemaConstantAction.java:147)
    at org.apache.derby.impl.sql.execute.DDLConstantAction.getSchemaDescriptorForCreate(Unknown
Source)
    at org.apache.derby.impl.sql.execute.CreateTableConstantAction.executeConstantAction(CreateTableConstantAction.java:213)
    at org.apache.derby.impl.sql.execute.MiscResultSet.open(MiscResultSet.java:56)
    at org.apache.derby.impl.sql.GenericPreparedStatement.execute(GenericPreparedStatement.java:366)
    at org.apache.derby.impl.jdbc.EmbedStatement.executeStatement(EmbedStatement.java:1108)
    at org.apache.derby.impl.jdbc.EmbedStatement.execute(EmbedStatement.java:517)
    at org.apache.derby.impl.jdbc.EmbedStatement.execute(EmbedStatement.java:475)
    at derbytest.Main$CreateTable.run(Main.java:42)
    at java.lang.Thread.run(Thread.java:595)

A program that reproduces this bug will be attached.

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