View materialization for nested GPSJ queries.

Matteo Golfarelli Stefano Rizzi View materialization for nested GPSJ queries. 10 2000 conf/dmdw/2000 DMDW http://SunSITE.Informatik.RWTH-Aachen.DE/Publications/CEUR-WS/Vol-28/paper10.pdf db/conf/dmdw/dmdw2000.html#GolfarelliR00