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Prefetch performance of index access by look-ahead prefetch

  • US 20060212658A1
  • Filed: 03/18/2005
  • Published: 09/21/2006
  • Est. Priority Date: 03/18/2005
  • Status: Abandoned Application
First Claim
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1. A method of prefetching records of a table before they are requested by a transaction, wherein said transaction is based on a set of keys, said method comprising:

  • queuing a plurality of the set of keys of the transaction;

    scanning an index of the table based on the queued set of keys;

    accumulating locations of records in the table based on the scan of the index;

    determining respective pages that include the accumulated records; and

    fetching the pages that include the accumulated records before they are requested , by the transaction.

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