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Gottlob et al., 2001 - Google Patents

The complexity of acyclic conjunctive queries

Gottlob et al., 2001

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Document ID
16170102627019544716
Author
Gottlob G
Leone N
Scarcello F
Publication year
Publication venue
Journal of the ACM (JACM)

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Snippet

This paper deals with the evaluation of acyclic Boolean conjunctive queries in relational databases. By well-known results of Yannakakis [1981], this problem is solvable in polynomial time; its precise complexity, however, has not been pinpointed so far. We show …
Continue reading at www.researchgate.net (PDF) (other versions)

Classifications

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    • G06F17/30286—Information retrieval; Database structures therefor; File system structures therefor in structured data stores
    • G06F17/30386—Retrieval requests
    • G06F17/30424—Query processing
    • G06F17/30477—Query execution
    • G06F17/30507—Applying rules; deductive queries
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING; COUNTING
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    • G06F17/30946—Information retrieval; Database structures therefor; File system structures therefor details of database functions independent of the retrieved data type indexing structures
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