November 2015
Beginner
464 pages
9h 46m
English
Content preview from Learning PostgreSQLBecome an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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Setting and getting database cluster settings
The PostgreSQL configuration settings control several aspects of the PostgreSQL cluster. For the administration aspect, one can define the statement time out, number of allowed connections, transaction type—read only or read/write—, and so on. From the development point of view, these settings can help a developer optimize queries.
Getting ready
The following recipe shows how to get and set a certain configuration value.
How to do it…
Getting a value can be done in several ways, such as selecting the value from the pg_settings catalog view, browsing the postgresql.conf file, or using the following function and statement:
car_portal=# SELECT current_setting('work_mem'); current_setting ----------------- ...
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