Invention Grant
- Patent Title: Order-independent stream query processing
- Patent Title (中): 与订单无关的流查询处理
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Application No.: US13936922Application Date: 2013-07-08
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Publication No.: US08972446B2Publication Date: 2015-03-03
- Inventor: Saileshwar Krishnamurthy , Michael R. Lewis , Wing Li , Neil Thombre , Jeffrey A. Davis , Daniel Robert Farina
- Applicant: Cisco Technology, Inc.
- Applicant Address: US CA San Jose
- Assignee: Cisco Technology, Inc.
- Current Assignee: Cisco Technology, Inc.
- Current Assignee Address: US CA San Jose
- Agency: Hickman Palermo Truong Becker Bingham Wong LLP
- Main IPC: G06F17/30
- IPC: G06F17/30

Abstract:
In a system and method for order-independent stream query processing, one or more input streams of data are received, and the one or more input streams are analyzed to determine data which is older than an already emitted progress indicator. The data which is older than the already emitted progress indicator is partitioned into one or more partitions, and each of the one or more partitions are independently processed using out-of-order processing techniques. A query is received, rewritten and decomposed into one or more sub-queries that produce partial results for each of the one or more partitions, where each of the one or more sub-queries correspond to a partition. A view is also produced that consolidates the partial results for each partition. The partial results are consolidated at a consolidation time specified by the query to produce final results, and the final results are provided.
Public/Granted literature
- US20140012877A1 ORDER-INDEPENDENT STREAM QUERY PROCESSING Public/Granted day:2014-01-09
Information query