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From Schema Evolution

This wiki reports the research advances of the Panta Rhei, a research project for data management under schema evolution.

The Panta Rhei project aims at providing powerful tools that: (i) facilitate schema evolution and guide the Database Administrator in planning and evaluating changes, (ii) support automatic rewriting of legacy queries against the current schema version, (iii) enable efficient archiving of the histories of data and metadata, and (iv) support complex temporal queries over such histories, and (v) automate the documentation and querying of metadata histories.

Contents 1 People 2 Projects 3 Funding 4 References

People

• Politecnico di Milano
  • Carlo A. Curino [1]
  • Letizia Tanca [2]

• UCLA
  • Myungwon Ham
  • Hyun J. Moon [3]
  • Carlo Zaniolo [4]

• UC San Diego
  • Alin Deutsch [5]
  • Chien-Yi Hou

Projects

Within this macro-project the following projects have been developed (please follow the links for further details):

• The Pantha Rei Schema Evolution Benchmark ^[1], a benchmark for schema evolution developed from the actual evolution of the MediaWiki DB backend.
• The History Metadata Manager ^[2], a tool to support temporal queries over metadata histories, and its Semantic Web Extension the Semantic HMM ^[3]
• The prototype system PRISM: tool for Graceful Schema Evolution ^[4], and its demo Prism demo page ^[5]

• The prototype system PRIMA: a system for querying Transaction-Time DB under evolving schema ^[6] and its demo^[7].

Funding

This work was supported in part by NSF-IIS award 0705345: “III-COR: Collaborative Research: Graceful Evolution and Historical Queries in Information Systems – A Unified Approach"

References

1. ↑ Curino, C. A., Moon, H. J., Tanca, L., & Zaniolo, C. (2008). Schema Evolution in Wikipedia: toward a Web Information System Benchmark. ICEIS. ^Bib
2. ↑ Curino, C. A., Moon, H. J., & Zaniolo, C. (2008). Managing the History of Metadata in support for DB Archiving and Schema Evolution. Paper presented at ER Workshop on Evolution and Change in Data Management (ECDM). ^Bib
3. ↑ Curino, C. A., Tanca, L., & Zaniolo, C. (2008). Information Systems Integration and Evolution: Ontologies at Rescue. Paper presented at International Workshop on Semantic Technologies in System Maintenance (STSM). ^Bib
4. ↑ Curino, C. A., Moon, H. J., & Zaniolo, C. (2008). Graceful database schema evolution: the prism workbench. Paper presented at Very Large Data Base (VLDB). ^Bib
5. ↑ Curino, C. A., Moon, H. J., Ham, M., & Zaniolo, C. (2009). The PRISM Workwench: Database Schema Evolution Without Tears. ICDE. ^Bib
6. ↑ Hyun J. Moon Carlo A. Curino, A. D. C. H., & Zaniolo, C. (2008). Managing and querying transaction-time databases under schema evolution. Paper presented at Very Large Data Base (VLDB). ^Bib
7. ↑ Moon, H. J., Curino, C. A., Ham, M., & Zaniolo, C. (2009). PRIMA: Archiving and Querying Historical Data with Evolving Schemas. demo paper at International Conference on Management of Data (SIGMOD). ^Bib