5 papers:
SIGMOD-2004-RaoPZ #abstraction #canonical #optimisation- Canonical Abstraction for Outerjoin Optimization (JR, HP, CZ), pp. 671–682.
PODS-1996-RajaramanU- Integrating Information by Outerjoins and Full Disjunctions (AR, JDU), pp. 238–248.
- SIGMOD-1994-Galindo-Legaria
- Outerjoins as Disjunctions (CAGL), pp. 348–358.
- SIGMOD-1990-RosenthalG #graph #implementation #query
- Query Graphs, Implementing Trees, and Freely-Reorderable Outerjoins (AR, CAGL), pp. 291–299.
VLDB-1984-RosenthalR #algebra #framework #query- Extending the Algebraic Framework of Query Processing to Handle Outerjoins (AR, DSR), pp. 334–343.
