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US07792798B2 Dynamic data compaction for data redistribution 有权
数据重新分配的动态数据压缩

Dynamic data compaction for data redistribution
Abstract:
A method and system for optimizing data redistribution in a database. In one embodiment, the method includes moving, during a first scan, outgoing records from a sending partition to one or more receiving partitions, where free space is created in the sending partition due to the outgoing records leaving the sending partition. The method also includes filling, during the first scan, some of the free space with remaining records that do not leave the sending partition.
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