Add missing space separator when there are multiple JOINS

Author: chaadow

activerecord/lib/arel/visitors/postgresql.rb

@@ -35,6 +35,7 @@ def visit_Arel_Nodes_UpdateStatement(o, collector)
               collector << " "
               remaining_joins.each do |join|
                 visit join, collector
+                collector << " "
               end
             end
 

activerecord/lib/arel/visitors/sqlite.rb

@@ -36,6 +36,7 @@ def visit_Arel_Nodes_UpdateStatement(o, collector)
               collector << " "
               remaining_joins.each do |join|
                 visit join, collector
+                collector << " "
               end
             end