allow partial union-all and improve parallel subquery costing

2021-04-08 14:46:04 David Steele (dsteele) Closed in commitfest 2021-03 with status: Returned with feedback 2021-04-08 14:42:12 David Steele (dsteele) Changed targetversion to None 2021-03-15 13:09:25 David Steele (dsteele) New status: Waiting on Author 2021-02-01 12:38:00 Masahiko Sawada (masahikosawada) Closed in commitfest 2021-01 with status: Moved to next CF 2020-12-28 11:34:23 Luc Vlaming (luc.vlaming) Changed targetversion to 14 2020-12-01 11:05:48 Anastasia Lubennikova (lubennikovaav) Closed in commitfest 2020-11 with status: Moved to next CF 2020-10-23 05:49:59 Luc Vlaming (luc.vlaming) Changed authors to Luc Vlaming (luc.vlaming) 2020-10-23 05:49:17 Luc Vlaming (luc.vlaming) Attached mail thread FRXPR01MB09021F98988B057A636AA4EEB7040@FRXPR01MB0902.DEUPRD01.PROD.OUTLOOK.DE 2020-10-23 05:49:17 Luc Vlaming (luc.vlaming) Created patch record