Allocation methods for Cartesian product files on multiple disks using linear error-correcting codes are proposed. This allocation methods can be applied to queries in which the characteristic of each attribute is not uniform. The structure of Reed-Solomon codes over GF(p/sup m/), which give the strictly optimal allocation when all possible partial match queries are equiprobable, and the mapping by the basis for GF(p/sup m/) over the subfields is used. As a result, it is shown that a file is constructed by records which has the attributes in which the domain is partitioned by different number. The properties of this method are described.
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机译:提出了使用线性纠错码的多个磁盘上的笛卡尔产品文件的分配方法。该分配方法可以应用于每个属性的特征不均匀的查询。通过GF(P / SUP M /)的REED-SOOMON代码的结构,它给出了当所有可能的部分匹配查询都是设备替代时严格最佳的分配,并且基于子字段的GF(P / SUP M /)的映射用来。结果,示出了由具有由不同数量划分的属性的记录构造文件。描述了该方法的性质。
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