Fix Internal Server Error in POST api/cachegroups/{id}/queue_updates

CHANGELOG.md

@@ -60,6 +60,7 @@ The format is based on [Keep a Changelog](http://keepachangelog.com/en/1.0.0/).
 - [#6712](https://github.com/apache/trafficcontrol/issues/6712) - Fixed error when loading the Traffic Vault schema from `create_tables.sql` more than once.
 - [#6834](https://github.com/apache/trafficcontrol/issues/6834) - In API 4.0, fixed `GET` for `/servers` to display all profiles irrespective of the index position. Also, replaced query param `profileId` with `profileName`.
 - [#6299](https://github.com/apache/trafficcontrol/issues/6299) User representations don't match
+- [#6896](https://github.com/apache/trafficcontrol/issues/6896) Fixed the `POST api/cachegroups/id/queue_updates` endpoint so that it doesn't give an internal server error anymore.
 - [#6933](https://github.com/apache/trafficcontrol/issues/6933) Fixed tc-health-client to handle credentials files with special characters in variables
 - [#6776](https://github.com/apache/trafficcontrol/issues/6776) User properties only required sometimes
 

traffic_ops/traffic_ops_golang/dbhelpers/db_helpers.go

@@ -1921,7 +1921,7 @@ UPDATE public.server
 SET config_update_time = config_apply_time
 WHERE server.cachegroup = $1
 AND server.cdn_id = $2
-RETURNING (SELECT s.host_name FROM "server" s WHERE s.id = server_id);`
+RETURNING server.host_name;`
 	rows, err := tx.Query(q, cgID, cdnID)
 	if err != nil {
 		return nil, fmt.Errorf("querying queue updates: %w", err)