Derby
  1. Derby
  2. DERBY-4414

NullPointerException with JOIN...USING and invalid table name in select list

    Details

    • Type: Bug Bug
    • Status: Closed
    • Priority: Major Major
    • Resolution: Fixed
    • Affects Version/s: 10.6.1.0
    • Fix Version/s: 10.6.1.0
    • Component/s: SQL
    • Labels:
      None
    • Issue & fix info:
      Repro attached

      Description

      ij version 10.6
      ij> connect 'jdbc:derby:memory:db;create=true';
      ij> create table t(a int, b int, c int);
      0 rows inserted/updated/deleted
      ij> select t.* from t t1 join t t2 using (a);
      ERROR XJ001: Java exception: ': java.lang.NullPointerException'.
      java.sql.SQLException: Java exception: ': java.lang.NullPointerException'.
      at org.apache.derby.impl.jdbc.SQLExceptionFactory40.getSQLException(SQLExceptionFactory40.java:95)
      at org.apache.derby.impl.jdbc.Util.newEmbedSQLException(Util.java:142)
      at org.apache.derby.impl.jdbc.Util.javaException(Util.java:299)
      at org.apache.derby.impl.jdbc.TransactionResourceImpl.wrapInSQLException(TransactionResourceImpl.java:403)
      at org.apache.derby.impl.jdbc.TransactionResourceImpl.handleException(TransactionResourceImpl.java:346)
      at org.apache.derby.impl.jdbc.EmbedConnection.handleException(EmbedConnection.java:2204)
      at org.apache.derby.impl.jdbc.ConnectionChild.handleException(ConnectionChild.java:81)
      at org.apache.derby.impl.jdbc.EmbedStatement.execute(EmbedStatement.java:614)
      at org.apache.derby.impl.jdbc.EmbedStatement.execute(EmbedStatement.java:555)
      at org.apache.derby.impl.tools.ij.ij.executeImmediate(ij.java:329)
      at org.apache.derby.impl.tools.ij.utilMain.doCatch(utilMain.java:521)
      at org.apache.derby.impl.tools.ij.utilMain.runScriptGuts(utilMain.java:363)
      at org.apache.derby.impl.tools.ij.utilMain.go(utilMain.java:261)
      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: java.sql.SQLException: Java exception: ': java.lang.NullPointerException'.
      at org.apache.derby.impl.jdbc.SQLExceptionFactory.getSQLException(SQLExceptionFactory.java:45)
      at org.apache.derby.impl.jdbc.SQLExceptionFactory40.wrapArgsForTransportAcrossDRDA(SQLExceptionFactory40.java:119)
      at org.apache.derby.impl.jdbc.SQLExceptionFactory40.getSQLException(SQLExceptionFactory40.java:70)
      ... 16 more
      Caused by: java.lang.NullPointerException
      at org.apache.derby.impl.sql.compile.JoinNode.getAllResultColumns(JoinNode.java:431)
      at org.apache.derby.impl.sql.compile.FromList.expandAll(FromList.java:474)
      at org.apache.derby.impl.sql.compile.ResultColumnList.expandAllsAndNameColumns(ResultColumnList.java:1598)
      at org.apache.derby.impl.sql.compile.ResultColumnList.bindExpressions(ResultColumnList.java:686)
      at org.apache.derby.impl.sql.compile.SelectNode.bindExpressions(SelectNode.java:451)
      at org.apache.derby.impl.sql.compile.DMLStatementNode.bindExpressions(DMLStatementNode.java:227)
      at org.apache.derby.impl.sql.compile.DMLStatementNode.bind(DMLStatementNode.java:140)
      at org.apache.derby.impl.sql.compile.CursorNode.bindStatement(CursorNode.java:249)
      at org.apache.derby.impl.sql.GenericStatement.prepMinion(GenericStatement.java:319)
      at org.apache.derby.impl.sql.GenericStatement.prepare(GenericStatement.java:88)
      at org.apache.derby.impl.sql.conn.GenericLanguageConnectionContext.prepareInternalStatement(GenericLanguageConnectionContext.java:824)
      at org.apache.derby.impl.jdbc.EmbedStatement.execute(EmbedStatement.java:606)
      ... 9 more

      The query is expected to fail (because the table name in t.* does not match any of the joined tables), but not with a NullPointerException. A similar query with ON instead of USING fails more gracefully:

      ij> select t.* from t t1 join t t2 on t1.a=t2.a;
      ERROR 42X10: 'T' is not an exposed table name in the scope in which it appears.

      1. derby-4414-1a.diff
        3 kB
        Knut Anders Hatlen

        Activity

          People

          • Assignee:
            Knut Anders Hatlen
            Reporter:
            Knut Anders Hatlen
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            Dates

            • Created:
              Updated:
              Resolved:

              Development