[teiid-issues] [JBoss JIRA] (TEIID-3119) Improve full sort performance for dup removal and grouping

Improve full sort performance for dup removal and grouping ---------------------------------------------------------- Key: TEIID-3119 URL: https://issues.jboss.org/browse/TEIID-3119 Project: Teiid Issue Type: Enhancement Components: Query Engine Reporter: Steven Hawkins Assignee: Steven Hawkins Fix For: 8.9 We perform a full sort for grouping/distinct reusing the existing sorting logic. This is not as efficient as it could for larger data sets with smaller numbers of groups. A hash implementation or combining the grouping with the sorting would perform better.