// Extract lfta components of the query
std::vector<stream_query *> split_query(ext_fcn_list *Ext_fcns, table_list *Schema, bool &hfta_returned, ifq_t *ifdb, int n_virtual_ifaces, int hfta_parallelism, int hfta_idx);
// Extract lfta components of the query
std::vector<stream_query *> split_query(ext_fcn_list *Ext_fcns, table_list *Schema, bool &hfta_returned, ifq_t *ifdb, int n_virtual_ifaces, int hfta_parallelism, int hfta_idx);