[teiid-issues] [JBoss JIRA] (TEIID-2902) LIMIT is not passing to subqueries

Ivan Chan created TEIID-2902: -------------------------------- Summary: LIMIT is not passing to subqueries Key: TEIID-2902 URL: https://issues.jboss.org/browse/TEIID-2902 Project: Teiid Issue Type: Enhancement Components: Query Engine Affects Versions: 8.7 Reporter: Ivan Chan Assignee: Steven Hawkins it does not push down the limit to the underlying datasources. What I means is that if SQL looks: SELECT t1.column1, t2.column1 FROM schema1.table1 t1, schema2.table1 t2 WHERE t1.column2=t2.column2 LIMIT 100 But Teiid will ask for the whole schema1.table1 content and the whole schema2.table1 content, do the join in memory and then, limit the resultset to 100 records. However, I think teiid can fetch smaller set of data then do a join. If the join result set is less than number of rows asking, keep fetching next set of data and do a join until hits the limit number. -- This message is automatically generated by JIRA. If you think it was sent incorrectly, please contact your JIRA administrators For more information on JIRA, see: http://www.atlassian.com/software/jira