Pointer-Based Buffer Memory Management for ETL Data Transformation
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Solution Overview
Problem
In data warehousing and database management, the existing extract-transform-load (ETL) processes involve unnecessary data copying between memory locations, leading to inefficiencies and potential data inconsistencies.
Innovation Solution
A unique memory management scheme where data extracted from an external source is placed in a memory buffer and manipulated by components without being copied to any other location, using pointers to access and transform the data within the buffer.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If data is copied to separate memory locations for transformation, then data can be manipulated by multiple components, but copying efficiency decreases and data inconsistencies may occur
Solution Approach 1:
The patent applies the inverse of the traditional copying principle by using pointers to reference the same data location without copying. Multiple components access and transform the same buffered data through pointers, eliminating redundant copies while maintaining data access flexibility across the transformation pipeline.
Solution Approach 2:
The patent implements a nested structure where multiple transformation components are contained within a single buffer memory location. Components are logically nested around the same data buffer, allowing sequential transformations without physical data copying between memory locations.
2Productivity
If data is copied between memory locations during transformation, then data can be processed by different components, but processing speed decreases due to redundant copying
Solution Approach 1:
The patent eliminates data copying by using pointer references. Instead of copying data between memory locations during transformation, components receive pointer references to the same buffer, allowing immediate access without time-consuming copy operations.
Solution Approach 2:
The patent performs the preliminary action of loading data into a buffer once at the extraction stage. Subsequent transformation components then access this pre-loaded buffer through pointers, avoiding repeated copying operations during the transformation pipeline.
3Ease of manufacture
If data is copied to separate memory locations, then transformation can be performed, but data consistency becomes difficult to maintain
Solution Approach 1:
The patent uses pointer references instead of data copying to maintain consistency. All components reference the same original data buffer, ensuring that transformations operate on consistent data without the risks of copy errors, partial copies, or synchronization issues that arise with multiple memory locations.
Data Source
AI summary
Various embodiments of the present invention are directed to a unique memory management scheme utilized by the DTP whereby data extracted from an external source is placed in a memory buffer and is then manipulated by the components without the need for copying the data to any other location in memory. While logically the data moves from component to component in the DFE for the various embodiments described herein, the data does not in fact change locations but, instead, the data resides in the buffer and is operated upon by a series of components that, in turn, access the data in the buffer via pointers and manipulate same.