Possible Ambiguity in Translation of Group Graph Patterns

Public SPARQL Dev mailing list,

In section of the W3C Recommendation of SPARQL
there appears (to me) to be some ambiguity in the translation of group
graph patterns.  Specifically, in the pseudocode following "If the form is
GroupGraphPattern", the third (non-blank) line says "For each element E in
the GroupGraphPattern".  No order seems to be explicitly given (unless I
overlooked some mandate elsewhere in the recommendation), yet the order
seems to be significant since each iteration of the loop builds on the G
from the previous iteration.  Could someone please provide some clarity on
the matter or point out my misunderstanding?

Thank you.

-Jesse Weaver

Received on Tuesday, 23 April 2013 05:48:49 UTC