Fix cube KNN by coordinate

When Who What
2018-01-11 11:57:05 Fedor Sigaev (sigaev) Closed in commitfest 2018-01 with status: Committed
2017-12-12 11:53:32 Fedor Sigaev (sigaev) Added sigaev as committer
2017-12-08 08:21:17 Andrey Borodin (x4m) Posted review with messageid <20171208082117.1137.51895.pgcf@coridan.postgresql.org>
2017-12-08 08:21:17 Andrey Borodin (x4m) New status: Ready for Committer
2017-12-08 08:02:44 Andrey Borodin (x4m) Added x4m as reviewer
2017-11-29 05:13:28 Michael Paquier (michael-kun) Closed in commitfest 2017-11 with status: Moved to next CF
2017-10-30 14:11:18 Alexander Korotkov (smagen) Changed authors to Alexander Korotkov (smagen)
2017-10-30 14:11:11 Alexander Korotkov (smagen) Attached mail thread a9657f6a-b497-36ff-e569-482a2c7e3292@2ndquadrant.com
2017-10-30 14:11:11 Alexander Korotkov (smagen) Created patch record