May 2019
Intermediate to advanced
600 pages
20h 46m
English
book
PostgreSQL 11 Administration Cookbook
by Simon Riggs, Gianni Ciolli, Sudheer Kumar Meesala, Sheldon Strauch
Content preview from PostgreSQL 11 Administration Cookbook
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How it works...
The preceding recipe allows online upgrades with zero data loss because of the use of the clean switchover process. There's no need for lengthy downtime during the upgrade, and there's much reduced risk in comparison with an in-place upgrade. It works best with new hardware, and is a good way to upgrade the hardware or change the disk layout at the same time.
This procedure is also very useful for those cases where binary compatibility is not possible, such as changing server encoding, or migrating the database to a different operating system or architecture, where the on-disk format will change as a result of low-level differences, such as endianness and alignment.
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