February 2020
Intermediate to advanced
734 pages
38h 13m
English
Content preview from PostgreSQL 12 High Availability Cookbook - Third Edition
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How it works...
The first step checks the pg_stat_database system view. This provides various global statistics about all databases in the PostgreSQL database cluster. This is a very easy way to obtain a list of extremely active databases that we can break into smaller pieces. The query gives us all three numbers that we want regarding database statistics.
Our example database isn't quite busy enough, so we omitted the entire WHERE clause to show the pgbench database statistics:
To get specific table measurements, we need to connect to any databases named by the database activity query. Then we create a view that will always provide a list ...
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