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https://issues.apache.org/jira/browse/JENA-1193?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Andy Seaborne resolved JENA-1193.
---------------------------------
Resolution: Fixed
Fix Version/s: Jena 3.1.1
> sdbquery: FILTER within FILTER NOT EXIST has no effect
> ------------------------------------------------------
>
> Key: JENA-1193
> URL: https://issues.apache.org/jira/browse/JENA-1193
> Project: Apache Jena
> Issue Type: Bug
> Components: SDB
> Affects Versions: Jena 3.1.0
> Reporter: Osma Suominen
> Assignee: Andy Seaborne
> Fix For: Jena 3.1.1
>
>
> I noticed that when run within sdbquery, a SPARQL query containing a nested
> FILTER NOT EXISTS { ... FILTER (...) } doesn't work the same way as when run
> on an in-memory model with the same data.
> Here's my data as TriG:
> {noformat}
> @prefix skos: <http://www.w3.org/2004/02/skos/core#>.
> @prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#>.
> @prefix ex: <http://example.org/>.
> # source graph
> ex:src {
> ex:src1 rdfs:label "label1" .
> ex:src2 rdfs:label "label2" .
> }
> # destination graph
> ex:dst {
> ex:dst1 skos:prefLabel "label1" .
> ex:dst2 skos:altLabel "label2" .
> }
> {noformat}
> Here's my query:
> {noformat}
> PREFIX rdfs: <http://www.w3.org/2000/01/rdf-schema#>
> PREFIX skos: <http://www.w3.org/2004/02/skos/core#>
> PREFIX ex: <http://example.org/>
> SELECT * {
> GRAPH ex:src {
> ?c1 rdfs:label ?label .
> }
> FILTER NOT EXISTS {
> GRAPH ex:dst {
> ?c2 ?anyprop ?label .
> FILTER (?anyprop != skos:prefLabel)
> }
> }
> }
> {noformat}
> Results when run with Jena "sparql" command line tool on an in-memory model:
> {noformat}
> ----------------------
> | c1 | label |
> ======================
> | ex:src1 | "label1" |
> ----------------------
> {noformat}
> Results when run with sdbquery --debug option:
> {noformat}
> PREFIX skos: <http://www.w3.org/2004/02/skos/core#>
> PREFIX rdfs: <http://www.w3.org/2000/01/rdf-schema#>
> PREFIX ex: <http://example.org/>
> SELECT *
> WHERE
> { GRAPH ex:src
> { ?c1 rdfs:label ?label }
> FILTER NOT EXISTS { GRAPH ex:dst
> { ?c2 ?anyprop ?label
> FILTER ( ?anyprop != skos:prefLabel )
> }
> }
> }
> - - - - - - - - - - - - - -
> (prefix ((rdfs: <http://www.w3.org/2000/01/rdf-schema#>))
> (filter (notexists
> (filter (!= ?anyprop
> <http://www.w3.org/2004/02/skos/core#prefLabel>)
> (SQL '''SqlSelectBlock/Q_1
> Q_1.g = -273327510643043486
> Table Q_1 -- ex:dst ?c2 ?anyprop ?label''')
> ))
> (SQL '''SqlSelectBlock/S_1 -- V_1=?c1 V_2=?label
> R_1.lex/V_1_lex R_1.datatype/V_1_datatype R_1.lang/V_1_lang
> R_1.type/V_1_type
> R_2.lex/V_2_lex R_2.datatype/V_2_datatype R_2.lang/V_2_lang
> R_2.type/V_2_type
> Join/left outer
> Join/left outer
> SqlSelectBlock/Q_2 -- ?c1:(Q_2.s=>Q_2.X_1)
> ?label:(Q_2.o=>Q_2.X_2)
> Q_2.s/X_1 Q_2.o/X_2
> Q_2.g = -317857793313676831
> Q_2.p = 6454844767405606854
> Table Q_2 -- ex:src ?c1 rdfs:label ?label
> Table R_1 -- Var: ?c1
> Condition Q_2.X_1 = R_1.hash
> Table R_2 -- Var: ?label
> Condition Q_2.X_2 = R_2.hash''')
> ))
> SELECT -- V_1=?c1 V_2=?label
> R_1.lex AS V_1_lex, R_1.datatype AS V_1_datatype, R_1.lang AS V_1_lang,
> R_1.type AS V_1_type,
> R_2.lex AS V_2_lex, R_2.datatype AS V_2_datatype, R_2.lang AS V_2_lang,
> R_2.type AS V_2_type
> FROM
> ( SELECT -- ?c1:(Q_2.s=>Q_2.X_1)
> ?label:(Q_2.o=>Q_2.X_2)
> Q_2.s AS X_1, Q_2.o AS X_2
> FROM Quads AS Q_2 -- ex:src ?c1 rdfs:label ?label
> WHERE ( Q_2.g = -317857793313676831 -- Const: ex:src
> AND Q_2.p = 6454844767405606854 -- Const: rdfs:label
> )
> ) AS Q_2 -- ?c1:(Q_2.s=>Q_2.X_1)
> ?label:(Q_2.o=>Q_2.X_2)
> LEFT OUTER JOIN
> Nodes AS R_1 -- Var: ?c1
> ON ( Q_2.X_1 = R_1.hash )
> LEFT OUTER JOIN
> Nodes AS R_2 -- Var: ?label
> ON ( Q_2.X_2 = R_2.hash )
> SELECT -- ?c2:(Q_3.s=>Q_3.X_1)
> ?anyprop:(Q_3.p=>Q_3.X_2)
> Q_3.s AS X_1, Q_3.p AS X_2
> FROM Quads AS Q_3 -- ex:dst ?c2 ?anyprop "label1"
> WHERE ( Q_3.g = -273327510643043486 -- Const: ex:dst
> AND Q_3.o = -9201284561348719236 -- Const: "label1"
> )
> SELECT -- ?c2:(Q_4.s=>Q_4.X_1)
> ?anyprop:(Q_4.p=>Q_4.X_2)
> Q_4.s AS X_1, Q_4.p AS X_2
> FROM Quads AS Q_4 -- ex:dst ?c2 ?anyprop "label2"
> WHERE ( Q_4.g = -273327510643043486 -- Const: ex:dst
> AND Q_4.o = 2153590109465208943 -- Const: "label2"
> )
> ----------------------
> | c1 | label |
> ======================
> | ex:src1 | "label1" |
> | ex:src2 | "label2" |
> ----------------------
> {noformat}
> Note the extra result row. It seems that the inner FILTER has no effect.
> The issue seems similar to JENA-1128. I'm using the current (2016-06-10)
> 3.1.1-SNAPSHOT version.
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