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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

How to do it…

Tablespaces can contain both permanent and temporary objects.

Permanent data objects are tables, indexes, and TOAST objects. We don't need to worry too much about TOAST objects because they are created in and always live in the same tablespace as their main table. So, if you alter the tablespace of a table, its TOAST objects will also move:

ALTER TABLE mytable SET TABLESPACE new_tablespace;

Indexes can exist in separate tablespaces, and moving a table leaves the indexes where they are. Don't forget to run ALTER INDEX commands as well, one for each index, as follows:

ALTER INDEX mytable_val_idx SET TABLESPACE new_tablespace;

Temporary objects cannot be explicitly moved to a new tablespace, so we take that to mean you want to ...

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Publisher Resources

ISBN: 9781788474924Supplemental Content