Triples Are Saved To Incorrect Model When Doing Incremental Inference

(Doc ID 1532868.1)

Last updated on FEBRUARY 08, 2017

Applies to:

Oracle Spatial - Version and later
Information in this document applies to any platform.


When creating an entailment using the option of incremental inference and issuing the CREATE_ENTAILMENT the second time to do the incremental inference using the delta_in parameter, the triples are being saved in the second model in the sem_models parameter instead of the first model.

create table c_tpl(triple sdo_rdf_triple_s) compress;
exec sem_apis.create_sem_model('c','c_tpl','triple');

create table c_new_tpl(triple sdo_rdf_triple_s) compress;
exec sem_apis.create_sem_model('c_new','c_new_tpl','triple');

create table d_tpl(triple sdo_rdf_triple_s) compress;
exec sem_apis.create_sem_model('d','d_tpl','triple');

create table d_new_tpl(triple sdo_rdf_triple_s) compress;
exec sem_apis.create_sem_model('d_new','d_new_tpl','triple');

EXECUTE sem_apis.create_entailment ('d_IDX',sem_models('d','c'), sem_rulebases('OWLPRIME'),null,null, 'INC=T');

select count(1) from mdsys.rdfm_c;
--returns 0
select count(1) from mdsys.rdfm_d;
--returns 0
select count(1) from mdsys.rdfi_d_idx;
--returns 0

insert into c_new_tpl(triple) values(sdo_rdf_triple_s('c_new','','rdfs:subClassOf',''));
insert into d_new_tpl(triple) values(sdo_rdf_triple_s('d_new','','rdfs:subClassOf',''));

EXECUTE sem_apis.create_entailment('d_IDX', sem_models('d','c'), sem_rulebases('OWLPRIME'), SEM_APIS.REACH_CLOSURE, null, options => 'INC=T', delta_in => sem_models('d_NEW','c_new'));

select count(1) from mdsys.rdfm_c;
--returns 2
select count(1) from mdsys.rdfm_c_new;
--returns 1
select count(1) from mdsys.rdfm_d;
--returns 0
select count(1) from mdsys.rdfm_d_new;
--returns 1
select count(1) from mdsys.rdfi_d_idx;
--returns 0

"d" model is empty (see the count 0)
Expecting the 2 new rows to be in here instead of "c" model


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