Paper P331 pagesReviewed manuscript
Schema Migration as a Typed Mapping
What semantic information must be stated before executing a schema migration?
Question and scope
immutable schema versions connected by validated mappings with eager, lazy, and virtual physical modes.
Research artifacts
migration taxonomy, mapping semantics, loss classification, compatibility views, and physical-plan separation.
Evidence and evaluation
fixtures for additions, destruction, splits, merges, cardinalities, constraints, and domains.
Claim boundary
mappings remove migration cost, loss, downtime, or coordination.