import java.sql.*;

public class Asplode{
  public static void main(String[] args) throws Exception{
    Class.forName("org.postgresql.Driver").newInstance();

    Connection connection = DriverManager.getConnection("jdbc:postgresql://localhost/david", "test", "test");

    connection.createStatement().execute("drop table if exists kittens");
    connection.createStatement().execute("CREATE TABLE \"kittens\" (\"id\" SERIAL NOT NULL, \"name\" TEXT, \"created_at\" TIMESTAMP, PRIMARY KEY(\"id\"))");
    PreparedStatement ps = connection.prepareStatement("INSERT INTO \"kittens\" (\"name\", \"created_at\") VALUES (?, ?) RETURNING \"id\"");

    int psCount = ps.getParameterMetaData().getParameterCount();

    ps.setString(1, "whiskers");
    ps.setTimestamp(2, Timestamp.valueOf("2010-08-20 15:39:29.0"));

    ps.executeQuery();
/*
Exception in thread "main" java.lang.IllegalArgumentException: Can't change resolved type for param: 1 from 1043 to 25
    at org.postgresql.core.v3.SimpleParameterList.setResolvedType(SimpleParameterList.java:230)
    at org.postgresql.core.v3.QueryExecutorImpl.sendOneQuery(QueryExecutorImpl.java:1488)
    at org.postgresql.core.v3.QueryExecutorImpl.sendQuery(QueryExecutorImpl.java:1062)
    at org.postgresql.core.v3.QueryExecutorImpl.execute(QueryExecutorImpl.java:255)
    at org.postgresql.jdbc2.AbstractJdbc2Statement.execute(AbstractJdbc2Statement.java:479)
    at org.postgresql.jdbc2.AbstractJdbc2Statement.executeWithFlags(AbstractJdbc2Statement.java:367)
    at org.postgresql.jdbc2.AbstractJdbc2Statement.executeQuery(AbstractJdbc2Statement.java:271)
    at Asplode.main(Asplode.java:18)
*/
  }
}