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By: a guest on Jun 1st, 2012  |  syntax: None  |  size: 0.30 KB  |  hits: 22  |  expires: Never
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  1. Calculate the estimated size of the self-join operation R x R on a relatiion R, given a histogram for R
  2. Bucket 1: range = [1..2] Cumulative tuple count = 6
  3.  
  4. Bucket 2: range = [3..8] Cumulative tuple count = 30
  5.  
  6. Bucket3: range= [9..10] Cumulative tuple count = 10
  7.        
  8. A) 46
  9. B) 218
  10. C) 248
  11. D) 1,036
  12. E) 5,672
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