question about xwiki database schema change

[jimmy at comkraft.com]

Hi,

I have used the xwiki-db-0.9.2-pgsql.sql(from xwiki site) for my
postgresql database in xwiki-0.9.841(in Java 1.4.2/Tomcat 5.0.28)
successfully.

Recently I upgraded to the latest source code (now I am using Java 1.5_6
and Tomcat 5.5.16) but I started to have the following errors when I
access xwiki. I am still using the previous xwiki db I created:

java.sql.SQLException: ERROR: column xwikidocum0_.xwd_title does not exist
        at
org.postgresql.core.v3.QueryExecutorImpl.receiveErrorResponse(QueryEx
ecutorImpl.java:1365)
        at
org.postgresql.core.v3.QueryExecutorImpl.processResults(QueryExecutor
Impl.java:1160)
        at
org.postgresql.core.v3.QueryExecutorImpl.execute(QueryExecutorImpl.ja
va:172)
        at
org.postgresql.jdbc2.AbstractJdbc2Statement.execute(AbstractJdbc2Stat
ement.java:387)
        at
org.postgresql.jdbc2.AbstractJdbc2Statement.executeWithFlags(Abstract
Jdbc2Statement.java:328)

My question is: are there any db schema changes since 0.9.481 and where
can I find a new db schema?

thanks

-Jimmy