[teiid-issues] [JBoss JIRA] Created: (TEIID-1272) Join planning should make better decisions when mixing costing and unknown values

Join planning should make better decisions when mixing costing and unknown values --------------------------------------------------------------------------------- Key: TEIID-1272 URL: https://jira.jboss.org/browse/TEIID-1272 Project: Teiid Issue Type: Quality Risk Components: Query Engine Affects Versions: 7.0 Reporter: Steven Hawkins Assignee: Steven Hawkins Fix For: 7.1.1 When faced with an unknown value during join planning we use the default assumption of 100000 rows. However this may cause non-performant cross joins to be pushed in the worst case. It would be better to either not cost these scenarios or get a more accurate estimate of the post join cardinality based upon the the other side of the join. -- This message is automatically generated by JIRA. - If you think it was sent incorrectly contact one of the administrators: https://jira.jboss.org/secure/Administrators.jspa - For more information on JIRA, see: http://www.atlassian.com/software/jira