Magic is Relevant.
Hamid Pirahesh
Inderpal Singh Mumick
Raghu Ramakrishnan
Sheldon J. Finkelstein
ACM SIGMOD Conference
1990
19
2
247
258
We define the magic-sets transformation for traditional relational systems (with duplicates, aggregation and grouping), as well as for relational systems extended with recursion. We compare the magic-sets rewriting to traditional optimization techniq