Merge pull request '[stats-wf]fixed the result_result table' (#191) from antonis.lempesis/dnet-hadoop:beta into beta

Reviewed-on: #191

dhp-workflows/dhp-stats-update/src/main/resources/eu/dnetlib/dhp/oa/graph/stats/oozie_app/scripts/step20-createMonitorDB.sql

@@ -81,7 +81,11 @@ compute stats TARGET.result_sources;
 create table TARGET.result_topics stored as parquet as select * from SOURCE.result_topics orig where exists (select 1 from TARGET.result r where r.id=orig.id);
 compute stats TARGET.result_topics;
 
-create table TARGET.result_result stored as parquet as select * from SOURCE.result_result orig where exists (select 1 from TARGET.result r where r.id=orig.source) or exists (select 1 from TARGET.result r where r.id=orig.target);
+create view TARGET.foo1 as select * from SOURCE.result_result rr where rr.source in (select id from TARGET.result);
+create view TARGET.foo2 as select * from SOURCE.result_result rr where rr.target in (select id from TARGET.result);
+create table TARGET.result_result as select distinct * from (select * from TARGET.foo1 union all select * from TARGET.foo2) foufou;
+drop view TARGET.foo1;
+drop view TARGET.foo2;
 compute stats TARGET.result_result;
 
 -- datasources