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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…

The \watch meta-command allows psql users to automatically (and continuously) re-execute a query.

This behavior is similar to the watch utility of some Linux and Unix environments.

In the following example, we run a simple query on pg_stat_activity and ask psql to repeat it every 5 seconds. You can exit at any time by pressing Ctrl + C:

gabriele=> SELECT count(*) FROM pg_stat_activity; count-------     1(1 row)gabriele=> \watch 5Watch every 5s     Tue Aug 27 21:47:24 2013 count-------     1(1 row)<snip>
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Publisher Resources

ISBN: 9781788474924Supplemental Content