Steven Hawkins created TEIID-5570: ------------------------------------- Summary: xmlagg should return null rather than empty over no values Key: TEIID-5570 URL: https://issues.jboss.org/browse/TEIID-5570 Project: Teiid Issue Type: Bug Components: Query Engine Reporter: Steven Hawkins Assignee: Steven Hawkins Fix For: 11.2, 11.1.1, 11.0.3 For example the query: select string_agg(col, ',') from (select cast(null as string) as col) x Should return null rather than an empty string. -- This message was sent by Atlassian Jira (v7.12.1#712002)