Query Rewriting Based on Meta-Granular Aggregation.

Piotr Wisniewski Krzysztof Stencel

Published in: CS&P (2013)

Keyphrases

query rewriting
query answering
query optimization
conjunctive queries
xpath queries
spatial databases
data integration
xml queries
complex queries
databases
query evaluation
query execution
database
integrity constraints
cost model
np complete
special case
heterogeneous data
tree patterns
xml documents
search engine