CONFIGURABLE DATA WINDOWS FOR ARCHIVED RELATIONS
First Claim
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1. A system, comprising:
- a memory storing a plurality of instructions; and
one or more processors configured to access the memory, wherein the one or more processors are further configured to execute the plurality of instructions to at least;
identify a query that identifies at least a data stream;
identify a configurable window size;
initialize the query with at least a portion of historical data based at least in part on the window size; and
evaluate the query based at least in part on the data stream and the portion of the historical data.
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Abstract
Techniques for managing configurable data windows for streams and/or archived relations are provided. In some examples, a query that identifies at least a data stream or an archived relation may be identified. Additionally, a configurable window size may be identified. In some instances, the query may be initialized with at least a portion of the historical data based at least in part on the window size. Further, the query may be evaluated based at least in part on the data stream and the portion of the historical data.
63 Citations
20 Claims
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1. A system, comprising:
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a memory storing a plurality of instructions; and one or more processors configured to access the memory, wherein the one or more processors are further configured to execute the plurality of instructions to at least; identify a query that identifies at least a data stream; identify a configurable window size; initialize the query with at least a portion of historical data based at least in part on the window size; and evaluate the query based at least in part on the data stream and the portion of the historical data. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A computer-readable memory storing a plurality of instructions executable by one or more processors, the plurality of instructions comprising:
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instructions that cause the one or more processors to receive a continuous query configured to process an archived relation, the continuous query including at least one of an identifier of the data stream or an identifier of historical data; instructions that cause the one or more processors to generate a query graph based at least in part on the continuous query; instructions that cause the one or more processors to receive a window size from an entity associated with the archived relation; instructions that cause the one or more processors to initialize the continuous query with at least a portion of historical data; and instructions that cause the one or more processors to evaluate the continuous query with respect to the archived relation, including at least in part on the historical data, and the window size based at least in part on the query graph. - View Dependent Claims (13, 14, 15, 16)
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17. A computer-implemented method, comprising:
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receiving a continuous query configured to process an archived relation associated with business event data, the continuous query including an identifier of the archived relation and an identifier of historical data associated with the stream; receiving a window size configured to identify a bounded range of the archived relation to process; generating a query graph based at least in part on the continuous query, the query graph including at least a node representing an operator of the continuous query; traversing the query graph topographically from a source node of the query graph to identify a stateful operator; initializing the continuous query with at least a portion of historical data at the identified stateful operator; and evaluating the continuous query with respect to the archived relation based at least in part on the window size. - View Dependent Claims (20)
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18. The computer-implemented method of 17, wherein the historical data includes business event data from a point in time of the archived relation prior to initializing the continuous query.
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19. The computer-implemented method of 17, further comprising determining an optimal amount of the historical data with which to initialize the continuous query based at least in part on the operator of the continuous query.
Specification