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Progressive query computation using streaming architectures

  • US 9,607,045 B2
  • Filed: 12/21/2012
  • Issued: 03/28/2017
  • Est. Priority Date: 07/12/2012
  • Status: Active Grant
First Claim
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1. A method comprising:

  • obtaining a relational query that references relational data items from a relational data table that lacks an explicit temporal attribute for ordering the relational data items of the relational data table;

    adapting the relational data items for processing by a stream engine by associating explicit temporal data with the relational data items, the explicit temporal data comprising different lifetimes;

    providing the relational data items and the explicit temporal data as input events to the stream engine, wherein the stream engine performs a streaming query, corresponding to the relational query, on the input events using the different lifetimes to identify individual relational data items that contribute to corresponding incremental results of the streaming query;

    obtaining the incremental results of the streaming query from the stream engine; and

    outputting the incremental results.

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