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Optimal Algorithms for Ranked Enumeration of Answers to Full Conjunctive Queries.
Nikolaos Tziavelis
Deepak Ajwani
Wolfgang Gatterbauer
Mirek Riedewald
Xiaofeng Yang
Published in:
CoRR (2019)
Keyphrases
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conjunctive queries
queries using views
worst case
integrity constraints
np complete
query evaluation
special case
data exchange
data complexity
database
lower bound
query language
query answering
containment of conjunctive queries