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Typos in Query document (2)

From: Olivier Corby <Olivier.Corby@sophia.inria.fr>
Date: Wed, 27 Apr 2011 16:50:33 +0200
Message-ID: <4DB82D39.9080006@sophia.inria.fr>
To: SPARQL Working Group <public-rdf-dawg@w3.org>
Some typos in Query document.

Olivier




9.2 Examples
Example: Sequence


-- ?x is not aligned

{  ?x  foaf:mbox <mailto:alice@example> .
   ?x  foaf:knows [ foaf:knows [ foaf:name ?name ]].
}


Example: Arbitrary length match
->
Arbitrary length path (?)




9.3 Cycles and Duplicates

if an RDF term in the data would be a matched again




10.2 BINDINGS

RDf term
-> RDF term



11 Aggregates

version 1.1 of SPARQL/Query
->
version 1.1 of SPARQL


11.2 GROUP BY

If aggregates are used in the query level, but the GROUP BY term is not 
used, then there is taken to be a single implicit group
->
this is taken (?)



17.4.1.2 IF

rdfTerm   IF(expression1, expression2, expression3)

The IF function form evaluates the first argument, interprets it as a 
effective boolean value, then returns the value of expr2 if the EBV is 
true, otherwise it returns the value of expr3.
->
expression2 vs expr2
expression3 vs expr3


17.4.1.4 NOT EXISTS and EXISTS

theer



17.4.1.10 NOT IN

comparsions

check this:
"the RDF term being tested is not found to be in the list elsewhere in 
the list of terms."


NOT IN is equivalent to !(IN).
->
lhs NOT IN list is equivalent to !(lhs IN list).



17.4.2.10 BNODE

datset

If the no argument form is used every call results in a distinct blank 
node.
->
add a "," :
If the no argument form is used, every call results in a distinct blank 
node.



17.4.2.11 STRDT
17.4.2.12 STRLANG

The expression "simple literal lexicalForm" is used nowhere else in the 
document.




17.4.3.2 SUBSTR

literal   substr(literal source, xsd:integer startingLoc, xsd:integer 
length)
->
Uppercase:
SUBSTR()



17.4.5.1 now

All calls to this function in any one query execution must return the 
same value.
->
What about federated query ?




18.2 Translation to the SPARQL Algebra

synatx




18.2.1 Variable Scope


v is in-scope in an one or more of P1, P2, ...
->
in one or more


v is in-scope if v in varlist
->
v is in-scope if v is in varlist



18.2.2.2 Translate Property Path Expressions

synatx


X path{0,} Y    ?V path* Y
->
X path{0,} Y     X path* Y         (?)



18.2.2.3 Translate Basic Graph Patterns

collectied

achived




18.2.2.4 Translate Pattens in Filters
->
18.2.2.4 Translate Patterns in Filters



Example: Pattern involving MINUS:

Minus(
   BGP(?s :p ?v)
   BGP(?s :p1 ?v2)

->

A ")" is missing at the end



18.2.4 Converting BINDINGS, Groups, Aggregates and SELECT Expressions

# Grouping
# Aggregates
# BINDINGS
# Select expressions
# Having

BINDINGS is the only one in uppercase in the list above.



18.2.4.4 SELECT Expressions

Not visible: only in filter, exists/not exists, masked by a subselect, 
non-projected GROUP variables.

->

+ Right hand side of MINUS



Definition: Count

applied transitively,(see definition below)
->
add a space:
applied transitively, (see definition below)



Definition: Evaluation of ZeroLengthPath

eval(D(G), ZeroLengthPath(vx:var, path, vy:var))) =
   { {(vx, term), (vy, term)} | term in nodes(G) }
   card[] = 1

I do not understand the card[] = 1





18.6 Extending SPARQL Basic Graph Matching

[Ref: OWL2 semantics]
->
Add an hyperlink ?



19.8 Grammar

the the two cases

The rule QuadData is used in INSERT DATA and DELETE DATA must not allow 
variables in the quad patterns.
->
The rule QuadData, used in  INSERT DATA and DELETE DATA, must not allow 
variables in the quad patterns.
Received on Wednesday, 27 April 2011 14:51:03 GMT

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