if ((status = cql_transform_rpn2cql_wrbuf(cqlt, wrb, zquery)))
{
yaz_log(YLOG_WARN, "failed to generate CQL query, code=%d", status);
if ((status = cql_transform_rpn2cql_wrbuf(cqlt, wrb, zquery)))
{
yaz_log(YLOG_WARN, "failed to generate CQL query, code=%d", status);