I am getting an SQLException from the SQL generated by a DynamicQL statement. I did not got this error until I added left-joins to my jbosscmp-jdbc.xml. I will try to explain as best I can the circumstances which have led to this error. I am using Jboss 4.0.3SP1 connecting to a PostgreSQL 8.0.4 server. I have a DynamicQL query, which can look something like this: DYNAMIC-QL: SELECT DISTINCT Object (r) | FROM Recording r | WHERE 1=1 | AND r.phoneCall.dateOfCall >= ?1 | AND r.phoneCall.dateOfCall <= ?2 | AND r.phoneCall.startTime >= ?3 | AND r.phoneCall.callCentre.key = ?4 | ORDER BY r.phoneCall.key, r.timestampSequence It can take over 5 minutes to get the results and populate classes with the values from the recording table and all of its CMR fields, so I'm trying to use read-ahead on-find and left-joins to see if that speeds it up. The read ahead is: <read-ahead> | <strategy>on-find</strategy> | <page-size>4</page-size> | <eager-load-group>*</eager-load-group> | <left-join cmr-field="question" eager-load-group="*"/> | <left-join cmr-field="phoneCall" eager-load-group="*"> | <left-join cmr-field="interviewerEmp" eager-load-group="*"> | <left-join cmr-field="dept" eager-load-group="*"> | <left-join cmr-field="parentDept" eager-load-group="*"/> | </left-join> | <left-join cmr-field="title" eager-load-group="*"/> | </left-join> | <left-join cmr-field="versionStatus" eager-load-group="*"/> | <left-join cmr-field="version" eager-load-group="tss"> | <left-join cmr-field="study" eager-load-group="*"/> | </left-join> | <left-join cmr-field="dashCase" eager-load-group="*"> | <left-join cmr-field="form" eager-load-group="*"> | <left-join cmr-field="studyDetail" eager-load-group="*"> | <left-join cmr-field="study" eager-load-group="*"> | </left-join> | </left-join> | </left-join> | </left-join> | <left-join cmr-field="callStatus" eager-load-group="*"/> | </left-join> | <left-join cmr-field="monitoringEmp" eager-load-group="*"> | <left-join cmr-field="dept" eager-load-group="*"> | <left-join cmr-field="parentDept" eager-load-group="*"/> | </left-join> | <left-join cmr-field="title" eager-load-group="*"/> | </left-join> | </read-ahead> | The SQL generated by this query fails, appearantly because of the strange way it combines left outer joins and WHERE clauses to join the classes together. In the FROM clause: FROM dash.recording t0_r, | dash.phone_call t2_r_phoneCall, | call_centre_view t19_r_phoneCall_callCentre LEFT OUTER JOIN dash.question t1_r_question ON t0_r.question_id=t1_r_question.id | LEFT OUTER JOIN... In there WHERE clause: ...AND t0_r.phone_call_id=t2_r_phoneCall.id | AND t2_r_phoneCall.call_centre_id=t19_r_phoneCall_callCentre.id)) | AND t0_r.phone_call_id=t2_r_phoneCall.id The resulting error is: anonymous wrote : javax.ejb.FinderException: Find failed: java.sql.SQLException: ERROR: relation "t0_r" does not exist Is there something wrong with the way I'm setting up the left-joins, or might this be a bug in the sql generation code? Thanks in advance for any help, Chris Niermeier View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=3964660#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...