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数据分布的方法、装置及系统_WO2014015492A1_吴向阳 曹俊亮 曹莉.pdf
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2021-11-25
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2014 1 30 (30.01.2014)
W O 2014/015492 A 1
W P O P C T
(51) 国转 分类
LTD.); 17 B
G06F 17/30 (2006
501 Beijing 100081 (CN )
(21) 国际
PCT/CN20 12/079 173
(81)
(22) 国际 2012 7 26 日 (26.07.2012)
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BH, BN, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR,
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(26) 公布语
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LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY,
(71)
( ): 为技术有
MZ, NA, NG, NI, NO, NZ, OM, PE, PG, PH, PL, PT, QA,
(HUAWEI TECHNOLOGIES CO., LTD.)
RO, RS, RU, RW, SC, SD, SE, SG, SK, SL, SM, ST, SV,
[CN/CN] 广
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Guangdong 5 18129 (CN )
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(84)
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ang) [CN/CN]; 广
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楼 ,Guangdong 5 18129 (CN)
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(CAO, Junliang) [CN/CN]; 广
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Guangdong 5 18129 (CN )
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(CAO, Li) [CN/CN]; 广
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(74)
(BEIJING ZBSD PATENT & TRADEMARK AGENT
[ ]
(54) Title: DATA DISTRIBUTION METHOD, DEVICE, AND SYSTEM
(54) 明名
501
502
FIG. 5
501 Before data querying, a control node sets a distribution
table establishment instruction according to a n
establishment rule
502 The control node sends the distribution table establishment
instruction t o a data node
(57) Abstract: The present invention relates to the technical field of information. Disclosed are a data distribution method, device,
and system, so as t o save querying time, and improve the querying efficiency. The method comprises: before data querying, a control
node setting a distribution table establishment instruction according to an establishment rule, the distribution table establishment in
struction carrying an identifier (ID) of a logic data table and a distribution column ID of a selected distribution column, the selected
distribution column being a distribution column in the logic data table, and the logic data table being a logic data table established in
the control node; and the control node sending the distribution table establishment instruction t o a data node, so that the data node
establishes a distribution table of the logic data table according to the distribution table establishment instruction. The present inven -
tion i s mainly applied i n a data distribution process in a parallel database system.
(57) :
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