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OPERATOR SHARING FOR CONTINUOUS QUERIES OVER ARCHIVED RELATIONS

  • US 20140095447A1
  • Filed: 09/25/2013
  • Published: 04/03/2014
  • Est. Priority Date: 09/28/2012
  • Status: Active Grant
First Claim
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1. A computer-implemented method, comprising:

  • receiving, by a computer system configured to execute computer-executable instructions, a continuous query, the continuous query being identified based at least in part on an archived relation associated with an application;

    generating a physical query plan for the continuous query;

    identifying a child operator related to a parent operator in the physical query plan, the child operator being identified by the parent operator to store event information related to the application;

    inserting a buffer operator between the identified child operator and the parent operator in the physical query plan;

    storing the event information from the child operator in the buffer operator;

    identifying a query operator in the physical query plan, the query operator being identified based at least in part on the buffer operator;

    determining, based at least in part on the buffer operator, that the query operator identified in the physical query plan is a same type as a second query operator in a second continuous query concurrently executing; and

    generating a combined query plan based at least in part on the query operator identified in the physical query plan being the same type as the second query operator in the second continuous query.

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