Just upgraded to 8.1.5 and the following UPDATE causes the "missing
FROM-clause entry" error:
UPDATE model_timemap
SET map = updatemap( CASE WHEN replica = 32188 THEN 328787 WHEN replica = 32191 THEN 5739 ELSE -1 END, 1161642129, map)
WHERE replica.replica_id = model_timemap.replica AND replica.proxy = 32189
