Merge Operation Controls for Empty Input List Handling
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Solution Overview
Problem
Existing database processing systems require significant memory and time for transferring data between memory and processor storage during merge operations, leading to inefficient performance.
Innovation Solution
A computer program product that includes a single instruction to facilitate sorting and merging data records, utilizing controls to manage the behavior of operations when input lists become empty, thereby reducing data accesses and improving performance by minimizing data transfers.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If traditional merge operations are performed without controls, then data transfers continue until all input lists are processed, but this causes excessive data accesses and slows processing performance
Solution Approach 1:
The system performs preliminary actions by establishing control mechanisms before the merge operation begins. Controls are set up to define when data transfers should stop, allowing the system to prepare termination conditions in advance rather than reacting to each data access decision during execution.
Solution Approach 2:
The system implements feedback mechanisms where the status of input lists (whether they are empty or not) is continuously monitored and fed back into the control logic. This feedback loop allows the merge operation to dynamically adjust its behavior based on real-time conditions, stopping data transfers when appropriate to optimize performance.
2Productivity
If controls are implemented to manage empty input lists, then data accesses are reduced, but the system complexity increases
Solution Approach 1:
The control mechanism is segmented into separate, manageable components. Each control can be independently configured and managed, allowing the system to handle complexity by dividing the control logic into discrete units that can be processed and adjusted independently of each other.
Solution Approach 2:
The control mechanism is designed to be dynamic rather than static. Controls can be adjusted and reconfigured based on the specific needs of different merge operations, allowing the system to adapt to varying conditions without requiring complex hardwired logic for every possible scenario.
Data Source
Figure 1A~1B
Figure 2
Figure 3A~3F
AI summary
Storage accesses for merge operations are minimized. A plurality of records of a plurality of input lists are merged. The merging includes determining that an input list of the plurality of input lists has become empty, and checking, based on determining that the input list has become empty, a control specific for the input list. The control is used to determine how to proceed, such as whether to end merging or continue merging.