QueryColumn.new(:project, :sortable => "#{Project.table_name}.name", :groupable => true),
QueryColumn.new(:tracker, :sortable => "#{Tracker.table_name}.position", :groupable => true),
QueryColumn.new(:parent, :sortable => ["#{Issue.table_name}.root_id", "#{Issue.table_name}.lft ASC"], :default_order => 'desc', :caption => :field_parent_issue),
+ QueryAssociationColumn.new(:parent, :subject, :caption => :field_parent_issue_subject),
QueryColumn.new(:status, :sortable => "#{IssueStatus.table_name}.position", :groupable => true),
QueryColumn.new(:priority, :sortable => "#{IssuePriority.table_name}.position", :default_order => 'desc', :groupable => true),
QueryColumn.new(:subject, :sortable => "#{Issue.table_name}.subject"),
field_group_by: Group results by
field_sharing: Sharing
field_parent_issue: Parent task
+ field_parent_issue_subject: Parent task subject
field_member_of_group: "Assignee's group"
field_assigned_to_role: "Assignee's role"
field_text: Text field