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Preliminary draft (c) 2007 Cambridge UP - Villanova University

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1.6 Exercises 15<br />

Exercise 1.7<br />

For a conjunctive query, is processing postings lists in order of size guaranteed to be<br />

optimal? Explain why it is, or given an example where it isn’t.<br />

<strong>Preliminary</strong> <strong>draft</strong> (c)<strong>2007</strong> <strong>Cambridge</strong> <strong>UP</strong>

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