Ps22Pdf 关键词 : 范围分割 ; 负载平衡 ; 非平衡率 ; 代价模型 [gap=644]Key words: Range-partition; Load Balance; Imbalance Ratio; Cost Model
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range partition 范围分区 ; 创建范围划分 ; 范围分片
adaptive range partition theorem 自适应值域划分定理
adaptive range partition theorem 1 自适应值域划分定理
partition by range 范围分区
partition range 分区范围
PARTITION RANGE ALL 扫描全分区
PARTITION RANGE INLIST 不连续扫描多个分区
If database partitioning and range partitioning are used together, the rows in a table are first hashed across the database partitions and then range-partitioned within each database partition.
如果数据库分区和范围分区一同使用,那么表内的行首先会跨数据库分区做散列处理,然后再在每个数据库分区中执行范围分区。
Data is partitioned by node, so these queries can each be answered by a single partition, using an indexed range query.
数据根据节点分块,所以这些查询能分别在各自的数据块,通过一个索引过的范围查询得到结果。
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