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[Bug 10733] [XQuery11] Definition of group by expression not sufficent

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Date: Tue, 12 Oct 2010 15:43:01 +0000
To: public-qt-comments@w3.org
Message-Id: <E1P5h0H-0005S4-LE@jessica.w3.org>

--- Comment #1 from Jonathan Robie <jonathan.robie@redhat.com> 2010-10-12 15:43:01 UTC ---
Isn't that already defined here?

<quote section="XQuery 3.9.7">
2. The input tuple stream is partitioned into groups of tuples whose grouping
keys are equivalent. [Definition: Two tuples T1 and T2 have equivalent grouping
keys if and only if, for each grouping variable GV, the atomized value of GV in
T1 is deep-equal to the atomized value of GV in T2, as defined by applying the
function fn:deep-equal using the appropriate collation.]

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