Bugs item #2685898, was opened at 2009-03-13 09:01
Message generated for change (Comment added) made by shcheklein
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Category: Value Indecies
Group: None
>Status: Closed
>Resolution: Invalid
Priority: 5
Private: No
Submitted By: Nobody/Anonymous (nobody)
Assigned to: Nobody/Anonymous (nobody)
Summary: XPath expressions allowed in indexes are too restrictive
Initial Comment:
The structure of my XML is as follows:
<root>
<page>
<title>Page 1</title>
<id>10</id>
</page>
...
<page>
<title>Page 2</title>
<id>20</id>
</page>
</root>
I'd like the create an index for retrieving 'id' knowing 'title'. Smth like
this:
CREATE INDEX 'id-by-title' ON collection("wiki")/root/page/id BY ../title AS
xs:string
However, Sedna doesn't allow 'parent' axis in the index expressions. I'm having
troubles understanding why?
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>Comment By: Ivan Shcheklein (shcheklein)
Date: 2009-03-13 11:48
Message:
It's not a bug. Please submit feature requests directly to the
Sedna-discussion mail list.
BTW, it seems to me you don't need parent axes support to retrieve "id".
Just create index "page" by "title". Then use index-scan()/id.
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