solr_attr_init(&solr_attr);
r = rpn2solr_structure(ct, pr, client_data, q->RPNStructure, 0, w, &solr_attr);
solr_write_structure(pr, client_data, &solr_attr);
solr_attr_init(&solr_attr);
r = rpn2solr_structure(ct, pr, client_data, q->RPNStructure, 0, w, &solr_attr);
solr_write_structure(pr, client_data, &solr_attr);