[xwiki-users] "java.sql.BatchUpdateException: No value specified for parameter 4" during 0.9.840 to 1.x database update.

Hi all, I'm attempting to migrate a fairly large xwiki instance (5000+ docs, db image >1GB) from 0.9.840 to 1.x. The database schema update fails when I try to access a page for the first time. I get the same problem with both XWiki 1.1.2 and 1.2-rc1. Full stacktraces from the log file are available here: http://pastebin.com/fbc7639b . Below is a cut down version: 13:23:53,377 [] [http-8080-Processor25] WARN action.RequestProcessor - Unhandled Exception thrown: class com.xpn.xwiki.XWikiException 13:23:53,378 [] [http-8080-Processor25] ERROR [/xwiki].[action] - Servlet.service() for servlet action threw exception com.xpn.xwiki.XWikiException: Error number 3 in 0: Could not initialize main XWiki context Wrapped Exception: Error number 3201 in 3: Exception while saving document XWiki.XWikiPreferences Wrapped Exception: Could not execute JDBC batch update at com.xpn.xwiki.XWiki.getMainXWiki(XWiki.java:250) at com.xpn.xwiki.XWiki.getXWiki(XWiki.java:426) [...] Wrapped Exception: com.xpn.xwiki.XWikiException: Error number 3201 in 3: Exception while saving document XWiki.XWikiPreferences Wrapped Exception: Could not execute JDBC batch update at com.xpn.xwiki.store.XWikiHibernateStore.saveXWikiDoc(XWikiHibernateStore.java:333) at com.xpn.xwiki.store.XWikiCacheStore.saveXWikiDoc(XWikiCacheStore.java:97) [...] Wrapped Exception: java.sql.BatchUpdateException: No value specified for parameter 4 at com.mysql.jdbc.PreparedStatement.executeBatchSerially(PreparedStatement.java:1669) at com.mysql.jdbc.PreparedStatement.executeBatch(PreparedStatement.java:1085) [...] Note that this is different to http://jira.xwiki.org/jira/browse/XWIKI-1702 (I get the error despite running "alter table xwikidoc modify column XWD_ARCHIVE mediumtext null;" on the db image). Setup details: - Linux version 2.6.18-5-686 (Debian 2.6.18.dfsg.1-13) - mysql Ver 14.12 Distrib 5.0.32, mysql-connector-java-5.1.5-bin.jar - IBM java 1.5.0 pxi32devifx-20071025 (SR6b) - Tomcat 5.5.25 - XWiki 1.1.2 and 1.2-rc1 Thanks for any help! Cheers, Robin