PDF slides - Inria
PDF slides - Inria
PDF slides - Inria
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XAM query rewritingRewriting exampleqc id,contab d [val=5]e valv 1 v 2 v 3π c.cont,e.val⊲⊳ a.id=a.idσ b.id≺c.id⊲⊳ a.id≺b.id v 3nav b.cont,e.valv 2σ val=5a ida idv 1b id,contc id,contd valI. Manolescu (Gemo/IASI) Optimizations techniques for XML October 30, 2009 25 / 64