公开(公告)号：EP3057001A4

公开(公告)日：2016-11-16

申请号：EP13896495

申请日：2013-10-31

Applicant: HUAWEI TECH CO LTD

Inventor： LI JUN ,  SHI HUIHUA

IPC: G06F17/30

CPC classification number: G06F17/30315 ,  G06F17/30598

Abstract: The present invention relates to the field of data analysis, and discloses a columnar database processing method and apparatus, which can improve utilization of a Cache and shorten a processing time of data processing in the columnar database. A specific implementation method includes: acquiring a database action statement of a columnar database, and generating a first execution diagram according to the database action statement; grouping all operators in the first execution diagram, to generate at least one group information, where each information group corresponds to one group; modifying an execution process of the first execution diagram according to the at least one group information, to generate a second execution diagram; and processing data in the columnar database according to the second execution diagram. The present invention is applied to processing of data in a columnar database.

公开(公告)号：EP3312723A4

公开(公告)日：2018-06-13

申请号：EP16823654

申请日：2016-02-17

Applicant: HUAWEI TECH CO LTD

Inventor： GONG YILI ,  MA WENTAO ,  SHI HUIHUA

IPC: G06F9/52 ,  G06F9/50

CPC classification number: G06F17/30581 ,  G06F9/5038 ,  G06F9/52 ,  G06F17/30371 ,  G06F17/30377 ,  G06F2209/484 ,  H04L67/1095 ,  H04L67/42

Abstract: A command processing method and a server are provided. The method includes: receiving, by the server, a target request that carries a target command and that is sent by a client, where the target command is corresponding to a target context number (S101); using a current time as a target timestamp of the target request (S102); adding a local associated command corresponding to the target context number and a local conflicted command corresponding to the target command to a target dependency set (S103); forwarding the target request to a replica server, updating the target dependency set according to a feedback from the replica server, and storing an updated target dependency set synchronously with the replica server, so that the replica server subsequently executes a command according to the updated target dependency set (S104); and determining a target execution sequence of the target command and each command in the updated target dependency set according to the target context number and the target timestamp that are corresponding to the target command, and a context number and a timestamp that are corresponding to each command in the updated target dependency set, and executing the target command and each command in the updated target dependency set according to the target execution sequence (S105). According to the present invention, a system delay and system complexity are reduced while system consistency is ensured.