Just to clarify: there is of course a primary key and it's included in
the select.
Anyway, I'm still happy for any advice ;-)


Christian Rengstl M.A.
Klinik und Poliklinik für Innere Medizin II
Kardiologie - Forschung
Universitätsklinikum Regensburg
B3 1.388
Franz-Josef-Strauss-Allee 11
93053 Regensburg
Tel.: +49-941-944-7230




>>> On Wed, Oct 10, 2007 at 2:26 PM, in message
<470CE177.90AD.0080.0@klinik.uni-regensburg.de>, "Christian Rengstl"
<Christian.Rengstl@klinik.uni-regensburg.de> wrote:
> Hi everyone,
>
> I have a query including an inner join, which I execute to obtain a
> ResultSet, but when I execute the following piece of code I get an
error
> message saying that it could not update the table because it could
not
> find the primary key for a table.
> rs.first();
> rs.updateString("gene", "TestGen");
> rs.updateRow();
>
> Here is my query:
> SELECT gene_entropy.gene, gene_entropy.entropy,
gene_entropy.iteration,
> snp_entropy.snp_id
> FROM clustering.gene_entropy INNER JOIN clustering.snp_entropy
> USING(gene) limit 5;
>
> And here is the stacktrace:
> org.postgresql.util.PSQLException: Für die Tebelle
> (clustering.gene_entropy konnte kein Primärschlüssel gefunden
werden.
> at
>
org.postgresql.jdbc2.AbstractJdbc2ResultSet.isUpda teable(AbstractJdbc2Result
> Set.java:1547)
> at
>
org.postgresql.jdbc2.AbstractJdbc2ResultSet.checkU pdateable(AbstractJdbc2Res
> ultSet.java:2550)
> at
>
org.postgresql.jdbc2.AbstractJdbc2ResultSet.update Value(AbstractJdbc2ResultS
> et.java:2796)
> at
>
org.postgresql.jdbc2.AbstractJdbc2ResultSet.update String(AbstractJdbc2Result
> Set.java:1309)
> at
>
org.postgresql.jdbc2.AbstractJdbc2ResultSet.update String(AbstractJdbc2Result
> Set.java:1394)
> at
>
myapp.ui.event.DBTableFrameListener.actionPerforme d(DBTableFrameListener.jav
> a:406)
> at
>
javax.swing.AbstractButton.fireActionPerformed(Abs tractButton.java:1995)
> at
>
javax.swing.AbstractButton$Handler.actionPerformed (AbstractButton.java:2318)
> at
>
javax.swing.DefaultButtonModel.fireActionPerformed (DefaultButtonModel.java:3
> 87)
> at
>
javax.swing.DefaultButtonModel.setPressed(DefaultB uttonModel.java:242)
> at
>
javax.swing.plaf.basic.BasicButtonListener.mouseRe leased(BasicButtonListener
> .java:236)
> at
>
java.awt.AWTEventMulticaster.mouseReleased(AWTEven tMulticaster.java:272)
> at java.awt.Component.processMouseEvent(Component.jav a:6038)
> at
> javax.swing.JComponent.processMouseEvent(JComponen t.java:3260)
> at java.awt.Component.processEvent(Component.java:580 3)
> at java.awt.Container.processEvent(Container.java:205 8)
> at java.awt.Component.dispatchEventImpl(Component.jav a:4410)
> at java.awt.Container.dispatchEventImpl(Container.jav a:2116)
> at java.awt.Component.dispatchEvent(Component.java:42 40)
> at
>
java.awt.LightweightDispatcher.retargetMouseEvent( Container.java:4322)
> at
>
java.awt.LightweightDispatcher.processMouseEvent(C ontainer.java:3986)
> at
> java.awt.LightweightDispatcher.dispatchEvent(Conta iner.java:3916)
> at java.awt.Container.dispatchEventImpl(Container.jav a:2102)
> at java.awt.Window.dispatchEventImpl(Window.java:2429 )
> at java.awt.Component.dispatchEvent(Component.java:42 40)
> at java.awt.EventQueue.dispatchEvent(EventQueue.java: 599)
> at
>
java.awt.EventDispatchThread.pumpOneEventForFilter s(EventDispatchThread.java
> :273)
> at
>
java.awt.EventDispatchThread.pumpEventsForFilter(E ventDispatchThread.java:18
> 3)
> at
>
java.awt.EventDispatchThread.pumpEventsForHierarch y(EventDispatchThread.java
> :173)
> at
>
java.awt.EventDispatchThread.pumpEvents(EventDispa tchThread.java:168)
> at
>
java.awt.EventDispatchThread.pumpEvents(EventDispa tchThread.java:160)
> at
> java.awt.EventDispatchThread.run(EventDispatchThre ad.java:121)
>
> I am more than happy and thankful for any advice!
>
>
>
> Christian Rengstl M.A.
> Klinik und Poliklinik für Innere Medizin II
> Kardiologie - Forschung
> Universitätsklinikum Regensburg
> B3 1.388
> Franz-Josef-Strauss-Allee 11
> 93053 Regensburg
> Tel.: +49-941-944-7230
>
>
>
>
> ---------------------------(end of
broadcast)---------------------------
> TIP 9: In versions below 8.0, the planner will ignore your desire to
> choose an index scan if your joining column's datatypes do
not
> match


---------------------------(end of broadcast)---------------------------
TIP 5: don't forget to increase your free space map settings