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Databases and Information Systems Group
Department of Computer Science
Books with the inscription dissertation on a bookshelf in the library. © Nikolas Golsch​/​TU Dortmund

SIGMOD 2007 Reviews

Reviews for paper Why Off-The-Shelf RDBMSs are Better at XPath Than You Might Expect, submitted to SIGMOD 2007.

Overall rating: accept

Reviewer 1

Is this paper relevant to the Industrial Track? I.e., is it about commercial information management software, or about industrial-strength prototypes of information management software in widespread use?

Yes

Originality: How novel is the work described?

Slightly novel

Technical Quality: How complete, deep, and correct is this work?

Good

Significance: How much can this paper teach the community?

A lot; important for the community to know about

Presentation: how readable is the paper?

Good

Overall rating

Accept

Reviewer confidence

High

Justification for rating (max 3 lines, please)

Good and interesting investigation on how to evaluate XPath expressions using relational operators.

Detailed comments to authors:

none

Reviewer 2

Is this paper relevant to the Industrial Track? I.e., is it about commercial information management software, or about industrial-strength prototypes of information management software in widespread use?

Yes

Originality: How novel is the work described?

Slightly novel

Technical Quality: How complete, deep, and correct is this work?

Acceptable

Significance: How much can this paper teach the community?

Some; community would benefit from reading

Presentation: how readable is the paper?

Good

Overall rating

Neutral

Reviewer confidence

Medium

Justification for rating (max 3 lines, please)

While I'm not an expert in the generic-XML-in-RDBMS storage literature, I liked this paper. It did a nice job of showing how off-the-shelf RDBMS technology can process various classes of XML queries well. More query classes would've been nice, though.

Detailed comments to authors:

I'm torn on whether or not this paper was mis-submitted, and really belongs over in the research track. Just because you used a commercial RDBMS doesn't mean you're not doing research, and you aren't from industry and aren't describing a commercial product.
Figure 12 is interesting and a little scary/depressing - sad that DB2's XML features aren't yet good enough for the system to beat its relational self at handling XML!
I would have liked to see more query classes considered - such as queries that might be of the sort you'd claim DB2's XML features were designed for.

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