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<!DOCTYPE bugzilla SYSTEM "https://www.w3.org/Bugs/Public/page.cgi?id=bugzilla.dtd">

<bugzilla version="5.0.4"
          urlbase="https://www.w3.org/Bugs/Public/"
          
          maintainer="sysbot+bugzilla@w3.org"
>

    <bug>
          <bug_id>24221</bug_id>
          
          <creation_ts>2014-01-07 14:56:13 +0000</creation_ts>
          <short_desc>[XQ3.0] FLWOR expression semantics</short_desc>
          <delta_ts>2014-02-17 11:01:47 +0000</delta_ts>
          <reporter_accessible>1</reporter_accessible>
          <cclist_accessible>1</cclist_accessible>
          <classification_id>1</classification_id>
          <classification>Unclassified</classification>
          <product>XPath / XQuery / XSLT</product>
          <component>XQuery 3.0</component>
          <version>Last Call drafts</version>
          <rep_platform>PC</rep_platform>
          <op_sys>All</op_sys>
          <bug_status>RESOLVED</bug_status>
          <resolution>FIXED</resolution>
          
          
          <bug_file_loc></bug_file_loc>
          <status_whiteboard></status_whiteboard>
          <keywords></keywords>
          <priority>P2</priority>
          <bug_severity>normal</bug_severity>
          <target_milestone>---</target_milestone>
          
          
          <everconfirmed>1</everconfirmed>
          <reporter name="Michael Kay">mike</reporter>
          <assigned_to name="Jonathan Robie">jonathan.robie</assigned_to>
          
          
          <qa_contact name="Mailing list for public feedback on specs from XSL and XML Query WGs">public-qt-comments</qa_contact>

      

      

      

          <comment_sort_order>oldest_to_newest</comment_sort_order>  
          <long_desc isprivate="0" >
    <commentid>98078</commentid>
    <comment_count>0</comment_count>
    <who name="Michael Kay">mike</who>
    <bug_when>2014-01-07 14:56:13 +0000</bug_when>
    <thetext>In section 3.10 it is stated:

Conceptually, the initial clause generates a tuple stream. Each intermediate clause takes the tuple stream generated by the previous clause as input and generates a (possibly different) tuple stream as output.

In this sentence, &quot;the initial clause&quot; means &quot;the first clause&quot;, while &quot;Each intermediate clause&quot; means each clause after the first, before the &quot;return&quot;. That is, they don&apos;t mean the same as InitialClause and IntermediateClause in the grammar.

A recent thread on xquery-talk suggests that this has been misread and has caused confusion.</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>100742</commentid>
    <comment_count>1</comment_count>
    <who name="Jonathan Robie">jonathan.robie</who>
    <bug_when>2014-02-17 11:01:47 +0000</bug_when>
    <thetext>I propose to close this with the following text:

Delete: A FLWOR expression consists of an initial clause, zero or more intermediate clauses, and a final clause.

Rewrite: Conceptually, the first&lt;/phrase&gt; clause generates a tuple stream. Each  clause between the first clause and the return clause takes the tuple stream generated by the previous clause as input and generates a (possibly different) tuple stream as output. The return clause takes a tuple stream as input and, for each tuple in this tuple stream ...</thetext>
  </long_desc>
      
      

    </bug>

</bugzilla>