limit the number of concurrent source queries for limited unions ---------------------------------------------------------------- Key: TEIID-1543 URL: https://issues.jboss.org/browse/TEIID-1543 Project: Teiid Issue Type: Sub-task Components: Query Engine Reporter: Steven Hawkins Assignee: Steven Hawkins Priority: Minor Fix For: 8.3 Add logic to union processing to limit the amount of concurrency based upon the presence of a higher level limit.