| Abstract | .... 2 | |
| 1 | Introduction | .... 2 |
| 2 | Distribution of Selections for Datalog Queries | .... 4 |
| 3 | Distribution of Selections for General Recursive Queries | .... 6 |
| 3.1 | Fundamental Concepts | .... 6 |
| 3.2 | Generalized Distribution of Selections | .... 7 |
| 3.3 | Optimization of the Transformed Result | .... 9 |
| 4 | The Relationship of the Distribution of Selections to Other Methods | .... 11 |
| 4.1 | The Relationship of the Distribution of Selections to Top-Down Methods | .... 11 |
| 4.2 | The Relationship of the Distribution of Selections to Magic Sets | .... 12 |
| 5 | Conclusions | .... 17 |
| Acknowledgement | .... 17 | |
| References | .... 17 | |
| End | .... 21 |
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