Architectures for Parallel Query Processing on Networks of Workstations

p

m d p m d . . . .INTERCONNECTION NETWORK p p

d d

m m . . . .....

INTERCONNECTION

NETWORK INTERCONNECTION NETWORK

p

m . . .p m d d

. . . . Shared-nothing Shared-everything

Shared-disk

Query Query

q3, q425% of q1 operation

50% of q1 operation P a r t i a l o p e r a t i o n t r

a n s

f e r m o d e O