basetype_multirangetype basetype_rangetype ensure_range_basetype oid_oper oid_type oper_oid range_basetype type_oid

oid_oper() meosOper oid_oper ( Oid  oproid, meosType *  ltype, meosType *  rtype  ) Fetch from the hash table the operator info. [in] oproid Operator oid [out] ltype,rtype Type number of the left/right argument