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Apparatus and method for facilitating continuous querying of multi-dimensional data streams

  • US 8,316,012 B2
  • Filed: 06/27/2008
  • Issued: 11/20/2012
  • Est. Priority Date: 06/27/2008
  • Status: Active Grant
First Claim
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1. A non-transitory computer readable storage medium, comprising executable instructions to:

  • provide a plurality of query frames for generating continuous queries of multi-dimensional data stream, each query frame having associated metadata characterizing the query frame, and each query frame comprising a plurality of meta-sections with descriptive textual information about the query frame, the plurality of meta-sections including a meta-section that characterizes a past predetermined amount of time for which a continuous query associated with the query frame is evaluated;

    provide a query interface for formulating continuous queries of the multi-dimensional data streams, the multi-dimensional data streams comprising sequences of time-stamped data items or tuples across two or more dimensions that have a fixed schema or structure and arrive in a given time order, the continuous queries evaluating continuously as new data arrive on the multi-dimensional data streams;

    receive, via the query interface, user-generated input specifying search criteria;

    search for query frames having metadata matching the search criteria;

    populate, using at least one query frame having metadata matching criteria, the query interface to generate a plurality of continuous queries;

    execute the plurality of continuous queries against the multi-dimensional data streams; and

    modify the plurality of continuous queries at run-time.

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