schema versioning

Update Rewriting and Integrity Constraint Maintenance in a Schema Evolution Support System: PRISM++

Authors: 
Curino, Carlo; Moon, Hyun J.; Deutsch, Alin; Zaniolo, Carlo
Year: 
2011
Venue: 
PVLDB

Supporting legacy applications when the database schema evolves represents a long-standing challenge of practical and theoretical importance. Recent work has produced algorithms and systems that automate the process of data migration and query adaptation; how- ever, the problems of evolving integrity constraints and supporting legacy updates under schema and integrity constraints evolution are significantly more difficult and have thus far remained unsolved.

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