_op_names _op_oids _ready _temptype_cache _temptype_cache_ready _type_names _type_oids fill_opcache oper_oid populate_operators populate_temptype_cache populate_types temporal_basetypid type_oid

_op_oids Oid _op_oids[sizeof(_op_names)/sizeof(char *)][sizeof(_type_names)/sizeof(char *)][sizeof(_type_names)/sizeof(char *)] Global 3-dimensional array that keeps the Oids of the operators used in MobilityDB. The first dimension corresponds to the operator class (e.g., <=), the second and third dimensions correspond, respectively, to the left and right arguments of the operator. A value 0 is stored in the cell of the array if the operator class is not defined for the left and right types.