January 2019
Beginner
556 pages
14h 19m
English
Content preview from Learning PostgreSQL 11 - Third Edition
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Replication
Replication allows data from one database server to be replicated to another server. Replication is used mainly to achieve the following:
- High availability: A second server can take over if the primary server fails.
- Load balancing: Several servers can serve the same requests.
- Fast execution: PostgreSQL is shipped with the tools to execute the queries efficiently, such as several kind of indexes and smart planner. In addition, the read load can be distributed on the replicas in streaming replication.
PostgreSQL supports replication out of the box via streaming and logical replication. Streaming replication is a master-standby replication that uses file-based log shipping. Streaming replication is a binary replication technique, ...
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