en:site:recherche:logiciels:sparqlwithspark:star
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| en:site:recherche:logiciels:sparqlwithspark:star [13/09/2016 23:29] – created hubert | en:site:recherche:logiciels:sparqlwithspark:star [16/09/2016 23:09] (current) – [SPARQL Hybrid DF : plan for Spark v1.5] hubert | ||
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| - | Star shape queries over DrugBank | + | {{indexmenu_n> |
| - | SPARQL queries | + | ====== Star shape query plans====== |
| - | // Query star 1 (3 branches) | + | |
| - | < | + | |
| - | SELECT ?x ?a ?b | + | |
| - | WHERE { | + | |
| - | ?x < | + | |
| - | ?x < | + | |
| - | ? | + | |
| - | </ | + | |
| - | // in SQL | + | === SPARQL |
| - | < | + | |
| - | SELECT t1.s, t2.o, t3.o FROM triple t1, triple t2, triple t3 WHERE t1.p LIKE '< | + | |
| - | </ | + | |
| - | // Query star 1 (5 branches) | + | < |
| - | < | + | SELECT |
| - | SELECT | + | FROM triple t1, triple t2, triple t3 |
| - | WHERE { | + | WHERE t1.p LIKE '< |
| - | ?x < | + | AND t1.o LIKE '< |
| - | ?x <http://www4.wiwiss.fu-berlin.de/drugbank/resource/drugbank/ | + | AND t2.p LIKE '<http://xmlns.com/foaf/0.1/page> <http://dbpedia.org/page/Ibuprofen>' |
| - | ? | + | AND t3.p LIKE '< |
| - | ? | + | AND t1.s=t2.s AND t1.s=t3.s; |
| - | ?x < | + | |
| - | } | + | |
| </ | </ | ||
| - | // Query star 1 (10 branches) | ||
| - | < | ||
| - | SELECT ?x ?a ?b ?c ?d ?g ?h ?i | ||
| - | WHERE { | ||
| - | ?x < | ||
| - | ?x < | ||
| - | ? | ||
| - | ?x < | ||
| - | ?x < | ||
| - | ?x < | ||
| - | ?x < | ||
| - | ?x < | ||
| - | ?x < | ||
| - | ?x < | ||
| - | } | ||
| - | </ | ||
| - | // Query star 1 (15 branches) | ||
| - | < | ||
| - | SELECT ?x ?a ?b ?c ?d ?g ?h ?i ?j ?k ?l | ||
| - | WHERE { | ||
| - | ?x < | ||
| - | ?x < | ||
| - | ? | ||
| - | ?x < | ||
| - | ?x < | ||
| - | ?x < | ||
| - | ?x < | ||
| - | ?x < | ||
| - | ?x < | ||
| - | ?x < | ||
| - | ?x < | ||
| - | ?x < | ||
| - | ?x < | ||
| - | ?x < | ||
| - | ?x < | ||
| - | </ | ||
| - | Scala code: | + | ==== SPARQL Hybrid DF : plan for Spark v1.5==== |
| - | < | + | < |
| import scala.collection.mutable.ListBuffer | import scala.collection.mutable.ListBuffer | ||
| import scala.collection.mutable.ArrayBuffer | import scala.collection.mutable.ArrayBuffer | ||
| Line 390: | Line 341: | ||
| </ | </ | ||
| + | Go to [[en: | ||
en/site/recherche/logiciels/sparqlwithspark/star.1473802143.txt.gz · Last modified: by hubert