[xwiki-devs] ActivityStream plugin and Postgres?

Hello, did anyone encounter issues with running the ActivityStream plugin with Postgres? I seem to have non-well-formed SQL queries in two different Postgres versions. Can it be this is related to http://opensource.atlassian.com/projects/hibernate/browse/HHH-2984 ? paul Caused by: com.xpn.xwiki.plugin.activitystream.api.ActivityStreamException: Error number 3223 in 3: Error number 3223 in 3: Exception while searching documents with sql select act from ActivityEventImpl as act, ActivityEventImpl as act2 where act.eventId=act2.eventId and act.stream=Group_gg group by act.requestId having (act.priority)=max(act2.priority) order by act.date desc Wrapped Exception: could not execute query Wrapped Exception: could not execute query at com .xpn .xwiki .plugin .activitystream .impl.ActivityStreamImpl.searchEvents(ActivityStreamImpl.java:223) at com .xpn .xwiki .plugin .activitystream .impl.ActivityStreamImpl.getEvents(ActivityStreamImpl.java:248)