moveToInsertRow doesn't work when using prepared statements

Hello,

calling moveToInsertRow on a ResultSet returned by a prepared statement leads
to a NullPointerException:

Example code:

PreparedStatement p = c.prepareStatement(
 "SELECT * FROM sampletable WHERE myid=?",
 ResultSet.TYPE_FORWARD_ONLY,
 ResultSet.CONCUR_UPDATABLE);

p.setInt(1,1);

ResultSet r = p.executeQuery();

r.moveToInsertRow();


Result:

Exception in thread "main" java.lang.NullPointerException
 at org.postgresql.core.v3.SimpleQuery.toString(SimpleQuery.java:40)
 at
org.postgresql.jdbc2.AbstractJdbc2ResultSet.parseQuery(AbstractJdbc2ResultSet.java:1656)
 at
org.postgresql.jdbc2.AbstractJdbc2ResultSet.isUpdateable(AbstractJdbc2ResultSet.java:1516)
 at
org.postgresql.jdbc2.AbstractJdbc2ResultSet.checkUpdateable(AbstractJdbc2ResultSet.java:2427)
 at
org.postgresql.jdbc2.AbstractJdbc2ResultSet.moveToInsertRow(AbstractJdbc2ResultSet.java:868)


Driver Version: 8.0.309 JDBC3
PostgreSQL Version: 7.4.6



Best regards
Martin Keller