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 to do it…
We add conditional commands to vartest.sql resulting in the following script:
SELECT schemaname, relname, n_dead_tup, n_live_tup, n_dead_tup > 0 AS needs_vacuumFROM pg_stat_user_tablesORDER BY n_dead_tup DESCLIMIT 1\gset\if :needs_vacuum\qecho Running VACUUM on table :"relname" in schema :"schemaname"\qecho Rows before: :n_dead_tup dead, :n_live_tup liveVACUUM ANALYZE :schemaname.:relname;\qecho Waiting 1 second...SELECT pg_sleep(1);SELECT n_dead_tup AS n_dead_tup_now, n_live_tup AS n_live_tup_nowFROM pg_stat_user_tablesWHERE schemaname = :'schemaname' AND relname = :'relname'\gset\qecho Rows after: :n_dead_tup_now dead, :n_live_tup_now live\else\qecho Skipping VACUUM on table :"relname" in schema :"schemaname"\endif
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.