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Method, system, and program for predicate processing by iterator functions

  • US 7,685,103 B2
  • Filed: 09/29/2003
  • Issued: 03/23/2010
  • Est. Priority Date: 09/29/2003
  • Status: Expired due to Fees
First Claim
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1. A method for processing predicates in an iterator function, comprising:

  • under control of an iterator function processor that executes as part of a data store engine, when an iterator function included in a statement is invoked,obtaining one or more predicates included in the statement;

    applying the one or more predicates to a row of data;

    if applying the one or more predicates results in a match, returning the row of data; and

    if applying the one or more predicates does not result in a match, searching for another row of data for which application of the one or more predicates results in a match.

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