BLOCK COMPRESSION OF TABLES WITH REPEATED VALUES
    61.
    发明申请
    BLOCK COMPRESSION OF TABLES WITH REPEATED VALUES 有权
    具有重复值的表的块压缩

    公开(公告)号:US20100299316A1

    公开(公告)日:2010-11-25

    申请号:US12848862

    申请日:2010-08-02

    IPC分类号: G06F17/00 G06F15/16

    摘要: Methods and apparatus, including computer program products, for block compression of tables with repeated values. In general, value identifiers representing a compressed column of data may be sorted to render repeated values contiguous, and block dictionaries may be generated. A block dictionary may be generated for each block of value identifiers. Each block dictionary may include a list of block identifiers, where each block identifier is associated with a value identifier and there is a block identifier for each unique value in a block. Blocks may have standard sizes and block dictionaries may be reused for multiple blocks.

    摘要翻译: 方法和装置,包括计算机程序产品,用于块重复值压缩表。 通常,表示压缩数据列的值标识符可以被排序以使重复值连续,并且可以生成块字典。 可以为每个值标识符块生成块字典。 每个块字典可以包括块标识符的列表,其中每个块标识符与值标识符相关联,并且在块中存在每个唯一值的块标识符。 块可以具有标准尺寸,并且块字典可以重用于多个块。