Publications by Jan Rittinger

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2009

Research, January 2009
We introduce a controlled form of recursion in XQuery, inflationary fixed points, familiar in the context of relational databases. This imposes restrictions on the expressible types of recursion, but we show that inflationary fixed points nevertheless are sufficiently versatile to capture a wide range of interesting use cases, including the semantics of Regular XPath and its core transitive closure construct. While the optimization of general user-defined recursive functions in XQuery appears elusive, we will describe how inflationary fixed points can be efficiently evaluated, provided that the recursive XQuery expressions exhibit a distributivity property. We show how distributivity can be assessed both, syntactically and algebraically, and provide experimental evidence that XQuery processors can substantially benefit during inflationary fixed point evaluation.
@inproceedings{abc,
	abstract = {
        We introduce a controlled form of recursion in XQuery,
        inflationary fixed points, familiar in the context of relational
        databases. This imposes restrictions on the expressible types of
        recursion, but we show that inflationary fixed points
        nevertheless are sufficiently versatile to capture a wide range
        of interesting use cases, including the semantics of Regular
        XPath and its core transitive closure construct.

        While the optimization of general user-defined recursive
        functions in XQuery appears elusive, we will describe how
        inflationary fixed points can be efficiently evaluated, provided
        that the recursive XQuery expressions exhibit a distributivity
        property. We show how distributivity can be assessed both,
        syntactically and algebraically, and provide experimental
        evidence that XQuery processors can substantially benefit during
        inflationary fixed point evaluation.
      },
	author = {Loredana Afanasiev and Torsten Grust and Maarten Marx and Jan Rittinger and Jens Teubner},
	booktitle = {Research},
	title = {Recursion in XQuery: Put Your Distributivity Safety Belt On},
	url = {http://doi.acm.org/10.1145/1516360.1516401},
	year = {2009}
}

2008

IEEE Data Eng. Bull., January 2008
@inproceedings{abc,
	author = {Torsten Grust and Jan Rittinger and Jens Teubner},
	booktitle = {IEEE Data Eng. Bull.},
	title = {Pathfinder: XQuery Off the Relational Shelf.},
	url = {http://sites.computer.org/debull/A08dec/pathfinder.pdf},
	year = {2008}
}
Proceedings of the 24th International Conference on Data Engineering, ICDE 2008, Cancún, México, January 2008
@inproceedings{abc,
	author = {Loredana Afanasiev and Torsten Grust and Maarten Marx and Jan Rittinger and Jens Teubner},
	booktitle = {Proceedings of the 24th International Conference on Data Engineering, ICDE 2008},
	title = {An Inflationary Fixed Point Operator in XQuery.},
	url = {http://dx.doi.org/10.1109/ICDE.2008.4497604},
	venue = {Canc{\'u}n, M{\'e}xico},
	year = {2008}
}

2007

Datenbanksysteme in Business, Technologie und Web (BTW 2007), 12. Fachtagung des GI-Fachbereichs "Datenbanken und Informationssysteme" (DBIS), Proceedings, 7.-9. März 2007, Aachen, Germany, January 2007
@inproceedings{abc,
	author = {Jan Rittinger and Jens Teubner and Torsten Grust},
	booktitle = {Datenbanksysteme in Business, Technologie und Web (BTW 2007), 12. Fachtagung des GI-Fachbereichs "Datenbanken und Informationssysteme" (DBIS), Proceedings, 7.-9. M{\"a}rz 2007, Aachen, Germany},
	title = {Pathfinder: A Relational Query Optimizer Explores XQuery Terrain.},
	url = {http://www.btw2007.de/paper/p617.pdf},
	year = {2007}
}
Proceedings of the 23rd International Conference on Data Engineering, ICDE 2007, The Marmara Hotel, Istanbul, Turkey, January 2007
@inproceedings{abc,
	author = {Torsten Grust and Jan Rittinger and Jens Teubner},
	booktitle = {Proceedings of the 23rd International Conference on Data Engineering, ICDE 2007, The Marmara Hotel, Istanbul, Turkey},
	title = {eXrQuy: Order Indifference in XQuery.},
	url = {http://dx.doi.org/10.1109/ICDE.2007.367868},
	year = {2007}
}
Proceedings of the ACM SIGMOD International Conference on Management of Data, Beijing, China, January 2007
@inproceedings{abc,
	author = {Torsten Grust and Manuel Mayr and Jan Rittinger and Sherif Sakr and Jens Teubner},
	booktitle = {Proceedings of the ACM SIGMOD International Conference on Management of Data, Beijing, China},
	title = {A SQL: 1999 code generator for the pathfinder xquery compiler.},
	url = {http://doi.acm.org/10.1145/1247480.1247642},
	year = {2007}
}
Proceedings of the ACM SIGMOD International Conference on Management of Data, Beijing, China, January 2007
@inproceedings{abc,
	author = {Torsten Grust and Jan Rittinger and Jens Teubner},
	booktitle = {Proceedings of the ACM SIGMOD International Conference on Management of Data, Beijing, China},
	title = {Why off-the-shelf RDBMSs are better at XPath than you might expect.},
	url = {http://doi.acm.org/10.1145/1247480.1247591},
	year = {2007}
}
XIME-P, January 2007
@inproceedings{abc,
	author = {Torsten Grust and Jan Rittinger and Jens Teubner},
	booktitle = {XIME-P},
	title = {Data-intensive XQuery debugging with instant replay.},
	url = {http://doi.acm.org/10.1145/1328158.1328162},
	year = {2007}
}
CoRR, January 2007
@inproceedings{abc,
	author = {Loredana Afanasiev and Torsten Grust and Maarten Marx and Jan Rittinger and Jens Teubner},
	booktitle = {CoRR},
	title = {An Inflationary Fixed Point Operator in XQuery},
	url = {http://arxiv.org/abs/0711.3375},
	year = {2007}
}

2006

Advances in Database Technology - EDBT 2006, 10th International Conference on Extending Database Technology, Munich, Germany, January 2006
@inproceedings{abc,
	author = {Peter A. Boncz and Jan Flokstra and Torsten Grust and Maurice van Keulen and Stefan Manegold and K. Sjoerd Mullender and Jan Rittinger and Jens Teubner},
	booktitle = {Advances in Database Technology - EDBT 2006, 10th International Conference on Extending Database Technology, Munich, Germany},
	title = {MonetDB/XQuery-Consistent and Efficient Updates on the Pre/Post Plane.},
	url = {http://dx.doi.org/10.1007/11687238_89},
	year = {2006}
}
Proceedings of the ACM SIGMOD International Conference on Management of Data, Chicago, Illinois, USA, January 2006
@inproceedings{abc,
	author = {Peter A. Boncz and Torsten Grust and Maurice van Keulen and Stefan Manegold and Jan Rittinger and Jens Teubner},
	booktitle = {Proceedings of the ACM SIGMOD International Conference on Management of Data, Chicago, Illinois, USA},
	title = {MonetDB/XQuery: a fast XQuery processor powered by a relational engine.},
	url = {http://doi.acm.org/10.1145/1142473.1142527},
	year = {2006}
}

2005

Proceedings of the 31st International Conference on Very Large Data Bases, Trondheim, Norway, January 2005
@inproceedings{abc,
	author = {Peter A. Boncz and Torsten Grust and Maurice van Keulen and Stefan Manegold and Jan Rittinger and Jens Teubner},
	booktitle = {Proceedings of the 31st International Conference on Very Large Data Bases, Trondheim, Norway},
	title = {Pathfinder: XQuery - The Relational Way.},
	url = {http://www.vldb.org/conf/2005/papers/p1322-boncz.pdf},
	year = {2005}
}