Fix broken query with gather merge paths added in incremental sort patch

When Who What
2020-12-22 01:06:58 Tomas Vondra (fuzzycz) Closed in commitfest 2021-01 with status: Committed
2020-12-22 01:06:58 Tomas Vondra (fuzzycz) Changed committer to fuzzycz
2020-11-30 15:30:28 Anastasia Lubennikova (lubennikovaav) Closed in commitfest 2020-11 with status: Moved to next CF
2020-10-06 13:37:00 James Coleman (jcole1989) Changed reviewers to Tomas Vondra (fuzzycz), Jaime Casanova (jcasanov)
2020-10-06 13:37:00 James Coleman (jcole1989) Changed authors to James Coleman (jcole1989)
2020-10-06 13:37:00 James Coleman (jcole1989) Changed targetversion to 13
2020-10-06 13:36:25 James Coleman (jcole1989) Attached mail thread CAJGNTeNaxpXgBVcRhJX+2vSbq+F2kJqGBcvompmpvXb7pq+oFA@mail.gmail.com
2020-10-06 13:36:25 James Coleman (jcole1989) Created patch record