Introduction to Teradata Sparse Maps The Teradata hashing architecture and how AMPs are used to split tables for maximum parallelism evenly have been unchanged since the beginning. What is new is the ability to create your hash maps. Hash maps, as we usually know them, are also called contiguous maps. If you are not familiar …
How to use the Teradata MAPS Architecture? In an earlier article (link to All Rows on One AMP – By Design), I showed an alternative design for small reference tables, ensuring that all rows in the table are stored on a single Teradata AMP using the Teradata MAPS architecture. The design allows for single-AMP retrieval …
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