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From "Christian d'Heureuse (JIRA)" <j...@apache.org>
Subject [jira] Created: (DERBY-2015) NullPointerException in INSERT ... SELECT with self-joined table and IDENTITY column
Date Sat, 28 Oct 2006 21:38:17 GMT
NullPointerException in INSERT ... SELECT with self-joined table and IDENTITY column
------------------------------------------------------------------------------------

                 Key: DERBY-2015
                 URL: http://issues.apache.org/jira/browse/DERBY-2015
             Project: Derby
          Issue Type: Bug
          Components: SQL
    Affects Versions: 10.2.1.6
         Environment: Java 1.5.0_06-b05 WinXP
            Reporter: Christian d'Heureuse


The following statements generate a NullPointerException:

CREATE TABLE t1 (
   f1 INTEGER);

CREATE TABLE t2 (
   f2 INTEGER GENERATED ALWAYS AS IDENTITY,
   f3 INTEGER);

INSERT INTO t2 (f3)
   SELECT a.f1
      FROM t1 a
         INNER JOIN t1 b ON a.f1 = b.f1;

Stack trace:
----------------------------------------------------------------
2006-10-28 21:29:17.937 GMT:
 Booting Derby version The Apache Software Foundation - Apache Derby - 10.2.1.6 - (452058):
instance c013800d-010e-90d3-9ea6-00000012fd20
on database directory C:\temp_sys\temp_Derby_TestErr_db

Database Class Loader started - derby.database.classpath=''
2006-10-28 21:29:25.437 GMT Thread[main,5,main] (XID = 125), (SESSIONID = 0), (DATABASE =
c:\temp_sys\temp_Derby_TestErr_db), (DRDAID = null), Cleanup action starting
2006-10-28 21:29:25.437 GMT Thread[main,5,main] (XID = 125), (SESSIONID = 0), (DATABASE =
c:\temp_sys\temp_Derby_TestErr_db), (DRDAID = null), Failed Statement is: INSERT INTO t2 (f3)
   SELECT a.f1
      FROM t1 a
         INNER JOIN t1 b ON a.f1 = b.f1
java.lang.NullPointerException
        at org.apache.derby.impl.sql.compile.ResultColumnList.remapColumnReferencesToExpressions(Unknown
Source)
        at org.apache.derby.impl.sql.compile.JoinNode.flatten(Unknown Source)
        at org.apache.derby.impl.sql.compile.FromList.flattenFromTables(Unknown Source)
        at org.apache.derby.impl.sql.compile.SelectNode.preprocess(Unknown Source)
        at org.apache.derby.impl.sql.compile.SingleChildResultSetNode.preprocess(Unknown Source)
        at org.apache.derby.impl.sql.compile.DMLStatementNode.optimize(Unknown Source)
        at org.apache.derby.impl.sql.compile.DMLModStatementNode.optimize(Unknown Source)
        at org.apache.derby.impl.sql.GenericStatement.prepMinion(Unknown Source)
        at org.apache.derby.impl.sql.GenericStatement.prepare(Unknown Source)
        at org.apache.derby.impl.sql.conn.GenericLanguageConnectionContext.prepareInternalStatement(Unknown
Source)
        at org.apache.derby.impl.jdbc.EmbedStatement.execute(Unknown Source)
        at org.apache.derby.impl.jdbc.EmbedStatement.execute(Unknown Source)
        at org.apache.derby.impl.tools.ij.ij.executeImmediate(Unknown Source)
        at org.apache.derby.impl.tools.ij.utilMain.doCatch(Unknown Source)
        at org.apache.derby.impl.tools.ij.utilMain.go(Unknown Source)
        at org.apache.derby.impl.tools.ij.Main.go(Unknown Source)
        at org.apache.derby.impl.tools.ij.Main.mainCore(Unknown Source)
        at org.apache.derby.impl.tools.ij.Main14.main(Unknown Source)
        at org.apache.derby.tools.ij.main(Unknown Source)
Cleanup action completed
----------------------------------------------------------------

As with DERBY-1574, any subsequent SQL statements produce an internal error in the RawStore
module.

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