Parallel Join


Parallel Join
􀂄 The join operation requires pairs of tuples to be tested to see if
they satisfy the join condition, and if they do, the pair is added to
the join output.
􀂄 Parallel join algorithms attempt to split the pairs to be tested over
several processors. Each processor then computes part of the
join locally.
􀂄 In a final step, the results from each processor can be collected
together to produce the final result.

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