'where'=>['context_key:!='=>'']
SQL_CALC_FOUND_ROWS id, type, contentType, pagetitle, longtitle, description, alias, alias_visible, link_attributes, published, pub_date, unpub_date, parent, isfolder, introtext, content, richtext, template, menuindex, searchable, cacheable, createdby, createdon, editedby, editedon, deleted, deletedon, deletedby, publishedon, publishedby, menutitle, donthit, privateweb, privatemgr, content_dispo, hidemenu, class_key, context_key, content_type, uri, uri_override, hide_children_in_tree, show_in_tree, properties