STORING TABLES IN A DATABASE SYSTEM
    1.
    发明申请
    STORING TABLES IN A DATABASE SYSTEM 有权
    数据库系统中的存储表

    公开(公告)号:US20110173164A1

    公开(公告)日:2011-07-14

    申请号:US12906303

    申请日:2010-10-18

    IPC分类号: G06F17/30

    CPC分类号: G06F17/30501

    摘要: A method for processing data contained in tables in a relational database includes joining a first table and a second table into a joined table determining metadata for at least one column of a table of the following tables: the first table, the second table, and the joined table. The metadata is used for processing data in the at least one column of the table, and for processing data in at least one column of at least one other table of the following tables: the first table, the second table, and the joined table.

    摘要翻译: 一种用于处理包含在关系数据库中的表格中的数据的方法,包括将第一表格和第二表格加入到确定下表中的表格的至少一列的元数据的联合表中:第一表格,第二表格和 加入表。 所述元数据用于处理所述表的所述至少一列中的数据,并且用于处理下表中至少一个其他表的至少一列中的数据:第一表,第二表和连接表。

    Storing tables in a database system
    2.
    发明授权
    Storing tables in a database system 有权
    将表存储在数据库系统中

    公开(公告)号:US09020910B2

    公开(公告)日:2015-04-28

    申请号:US12906303

    申请日:2010-10-18

    IPC分类号: G06F17/30

    CPC分类号: G06F17/30501

    摘要: A method for processing data contained in tables in a relational database includes joining a first table and a second table into a joined table determining metadata for at least one column of a table of the following tables: the first table, the second table, and the joined table. The metadata is used for processing data in the at least one column of the table, and for processing data in at least one column of at least one other table of the following tables: the first table, the second table, and the joined table.

    摘要翻译: 一种用于处理包含在关系数据库中的表格中的数据的方法,包括将第一表格和第二表格加入到确定下表中的表格的至少一列的元数据的联合表中:第一表格,第二表格和 加入表。 所述元数据用于处理所述表的所述至少一列中的数据,并且用于处理下表中至少一个其他表的至少一列中的数据:第一表,第二表和连接表。

    AVOIDING THREE-VALUED LOGIC IN PREDICATES ON DICTIONARY-ENCODED DATA
    3.
    发明申请
    AVOIDING THREE-VALUED LOGIC IN PREDICATES ON DICTIONARY-ENCODED DATA 有权
    避免在编码数据上预测三值逻辑

    公开(公告)号:US20120278291A1

    公开(公告)日:2012-11-01

    申请号:US13544583

    申请日:2012-07-09

    IPC分类号: G06F17/30

    CPC分类号: G06F17/30312 H03M7/3088

    摘要: According to one embodiment of the present invention, a method for dictionary encoding data without using three-valued logic is provided. According to one embodiment of the invention, a method includes encoding data in a database table using a dictionary, wherein the data includes values representing NULLs. A query having a predicate is received and the predicate is evaluated on the encoded data, whereby the predicate is evaluated on both the encoded data and on the encoded NULLs.

    摘要翻译: 根据本发明的一个实施例,提供了一种用于字典编码数据而不使用三值逻辑的方法。 根据本发明的一个实施例,一种方法包括使用字典对数据库表中的数据进行编码,其中数据包括表示NULL的值。 接收到具有谓词的查询,并且对编码数据评估谓词,由此在编码数据和编码的NULL上对谓词进行评估。

    System and method for parallel computation of frequency histograms on joined tables
    4.
    发明授权
    System and method for parallel computation of frequency histograms on joined tables 失效
    用于并联计算连接表上频率直方图的系统和方法

    公开(公告)号:US08370326B2

    公开(公告)日:2013-02-05

    申请号:US12409713

    申请日:2009-03-24

    IPC分类号: G06F17/30

    CPC分类号: G06F17/30595

    摘要: According to one embodiment of the present invention, a method for the parallel computation of frequency histograms in joined tables is provided. The method includes reading data in a table row-by-row from a database system using a coordinator unit and distributing each read row to separate worker units. Each worker unit computes a partial frequency histogram for each column in the table in parallel. The partial histograms from the worker units are then merged and the coordinator unit sends the merged frequency histograms to the worker units.

    摘要翻译: 根据本发明的一个实施例,提供了一种用于并联计算连接表中的频率直方图的方法。 该方法包括使用协调器单元从数据库系统逐行读取表中的数据,并将每个读取行分配给单独的工作单元。 每个工作单元并行计算表中每列的部分频率直方图。 然后合并来自工作单元的部分直方图,并且协调器单元将合并的频率直方图发送给工作单元。

    SYSTEM AND METHOD FOR PARALLEL COMPUTATION OF FREQUENCY HISTOGRAMS ON JOINED TABLES
    5.
    发明申请
    SYSTEM AND METHOD FOR PARALLEL COMPUTATION OF FREQUENCY HISTOGRAMS ON JOINED TABLES 失效
    并行计算接合表上频率组织的系统和方法

    公开(公告)号:US20100250517A1

    公开(公告)日:2010-09-30

    申请号:US12409713

    申请日:2009-03-24

    IPC分类号: G06F17/30

    CPC分类号: G06F17/30595

    摘要: According to one embodiment of the present invention, a method for the parallel computation of frequency histograms in joined tables is provided. The method includes reading data in a table row-by-row from a database system using a coordinator unit and distributing each read row to separate worker units. Each worker unit computes a partial frequency histogram for each column in the table in parallel. The partial histograms from the worker units are then merged and the coordinator unit sends the merged frequency histograms to the worker units.

    摘要翻译: 根据本发明的一个实施例,提供了一种用于并联计算连接表中的频率直方图的方法。 该方法包括使用协调器单元从数据库系统逐行读取表中的数据,并将每个读取行分配给单独的工作单元。 每个工作单元并行计算表中每列的部分频率直方图。 然后合并来自工作单元的部分直方图,并且协调器单元将合并的频率直方图发送给工作单元。

    SYSTEM AND METHOD FOR AVIDING THREE-VALUED LOGIC IN PREDICATES ON DICTIONARY-ENCODED DATA
    6.
    发明申请
    SYSTEM AND METHOD FOR AVIDING THREE-VALUED LOGIC IN PREDICATES ON DICTIONARY-ENCODED DATA 失效
    用于在预编码的数字编码数据上预测三值逻辑的系统和方法

    公开(公告)号:US20110078134A1

    公开(公告)日:2011-03-31

    申请号:US12570420

    申请日:2009-09-30

    IPC分类号: G06F17/30

    CPC分类号: G06F17/30312 H03M7/3088

    摘要: According to one embodiment of the present invention, a method for dictionary encoding data without using three-valued logic is provided. According to one embodiment of the invention, a method includes encoding data in a database table using a dictionary, wherein the data includes values representing NULLs. A query having a predicate is received and the predicate is evaluated on the encoded data, whereby the predicate is evaluated on both the encoded data and on the encoded NULLs.

    摘要翻译: 根据本发明的一个实施例,提供了一种用于字典编码数据而不使用三值逻辑的方法。 根据本发明的一个实施例,一种方法包括使用字典对数据库表中的数据进行编码,其中数据包括表示NULL的值。 接收到具有谓词的查询,并且对编码数据评估谓词,由此在编码数据和编码的NULL上对谓词进行评估。

    Avoiding three-valued logic in predicates on dictionary-encoded data
    7.
    发明授权
    Avoiding three-valued logic in predicates on dictionary-encoded data 有权
    在字典编码数据的谓词中避免三值逻辑

    公开(公告)号:US08533179B2

    公开(公告)日:2013-09-10

    申请号:US13544583

    申请日:2012-07-09

    IPC分类号: G06F17/30

    CPC分类号: G06F17/30312 H03M7/3088

    摘要: According to one embodiment of the present invention, a method for dictionary encoding data without using three-valued logic is provided. According to one embodiment of the invention, a method includes encoding data in a database table using a dictionary, wherein the data includes values representing NULLs. A query having a predicate is received and the predicate is evaluated on the encoded data, whereby the predicate is evaluated on both the encoded data and on the encoded NULLs.

    摘要翻译: 根据本发明的一个实施例,提供了一种用于字典编码数据而不使用三值逻辑的方法。 根据本发明的一个实施例,一种方法包括使用字典对数据库表中的数据进行编码,其中数据包括表示NULL的值。 接收到具有谓词的查询,并且对编码数据评估谓词,由此在编码数据和编码的NULL上对谓词进行评估。

    Avoiding three-valued logic in predicates on dictionary-encoded data
    8.
    发明授权
    Avoiding three-valued logic in predicates on dictionary-encoded data 失效
    在字典编码数据的谓词中避免三值逻辑

    公开(公告)号:US08244765B2

    公开(公告)日:2012-08-14

    申请号:US12570420

    申请日:2009-09-30

    IPC分类号: G06F17/00

    CPC分类号: G06F17/30312 H03M7/3088

    摘要: According to one embodiment of the present invention, a method for dictionary encoding data without using three-valued logic is provided. According to one embodiment of the invention, a method includes encoding data in a database table using a dictionary, wherein the data includes values representing NULLs. A query having a predicate is received and the predicate is evaluated on the encoded data, whereby the predicate is evaluated on both the encoded data and on the encoded NULLs.

    摘要翻译: 根据本发明的一个实施例,提供了一种用于字典编码数据而不使用三值逻辑的方法。 根据本发明的一个实施例,一种方法包括使用字典对数据库表中的数据进行编码,其中数据包括表示NULL的值。 接收到具有谓词的查询,并且对编码数据评估谓词,由此在编码数据和编码的NULL上对谓词进行评估。