Timing of reassignment of data to different configurations of processing units in database systems
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United States of America Patent
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Apr 28, 2020
Grant Date -
Mar 8, 2018
app pub date -
Nov 10, 2017
filing date -
Dec 8, 2014
priority date (Note) -
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Abstract
Data portions of a database can be grouped and ranked in order of priory for reassignment from one or more maps to another one or more maps. It should be noted that a first map can assign the data portions to a first configuration of processors for processing the data portions, and a second map assigns the data portions to a second configuration of processors, different than the first configuration, for processing the data portions in a database system and/or environment. The data portions are reassigned in groups during an available time (window) for reassignment by taking the first one of the groups can be reassigned (“moved”) in the available, then the second one in the available reaming time, and so on, until no group of data portions can be moved in the remaining time or all of them have been moved.
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