Index building method for distributed memory columnar database
A memory columnar and index building technology, applied in the database field, can solve the problem of large memory consumption of Groupkey index, achieve the effect of improving import performance and parallelism
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[0039] figure 1 It is a schematic structural diagram of the distributed memory column database involved in this embodiment, and the distributed memory column database includes a domain controller DC (Domain Controller), an index server IS (Index Server), a data import management module IM (Import Manager ), memory database engine MDE (In Memory Database Engine), storage node CS (Column Store), data import system DIS (Data Import System), data server DS and read component RA (Replication Agent). Among them, the domain controller DC is responsible for issuing data import tasks to the data server DS; the storage node CS is a service node for storing data in the memory database engine, responsible for storing data and providing query functions to the upper layer, which includes the row table storage node rowtableCS and At least one index storage node columnCS; the data server DS is a data import module in the data import system DIS, responsible for importing source data into the m...
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