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Section A.4 says: "The grammar in A.1 EBNF normatively defines built-in precedence among the operators of XQuery. " For XQuery read XPath. Furthermore, the new string concatenation operator is missing from the table.
This is editorial. I will fix this.
Reopening. This problem is still present in the published XPath 3.0 specification, and is also present in the current XPath 3.1 draft.
I have fixed the XML so that this reads XPath in the XPath spec, XQuery in the XQuery spec. But the table seems to contain the operator in XQuery/XPath 3.0 and XQuery/XPath 3.1. What am I missing? http://www.w3.org/TR/xquery-30/#id-precedence-order http://www.w3.org/TR/xpath-30/#id-precedence-order http://www.w3.org/TR/xquery-31/#id-precedence-order http://www.w3.org/TR/xpath-31/#id-precedence-order In all cases, it occurs in row #6.
I guess I didn't see it because (a) it's not a very prominent symbol, and (b) I was looking in the wrong place.