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PostgreSQL 10 Administration Cookbook - Fourth Edition
book

PostgreSQL 10 Administration Cookbook - Fourth Edition

by Simon Riggs, Gianni Ciolli
May 2018
Intermediate to advanced content levelIntermediate to advanced
576 pages
30h 25m
English
Packt Publishing
Content preview from PostgreSQL 10 Administration Cookbook - Fourth Edition

Major upgrades in-place

PostgreSQL provides an additional supplied program, called pg_upgrade, which allows you to migrate between major releases, such as from 9.2 to 9.6; or you can upgrade straight to the latest server version. These upgrades are performed in-place, meaning that we upgrade your database without moving to a new system. That does sound good, but pg_upgrade has a few things that you may wish to consider as potential negatives, which are as follows:

  • The database server must be shut down while the upgrade takes place.
  • Your system must be large enough to hold two copies of the database server: old and new copies. If it's not, then you have to use the link option of pg_upgrade, or use the Major upgrades online recipe later. If ...
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Publisher Resources

ISBN: 9781788474924Supplemental Content