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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…

Run this query to look at the top 10 highest workloads on your server side:

postgres=# SELECT calls, total_time, query FROM pg_stat_statements          ORDER BY total_time DESC LIMIT 10;

The output is ordered by total_time, so it doesn't matter whether it was a single query or thousands of smaller queries.

There are many additional columns useful in tracking down further information about particular entries:

postgres=# \d pg_stat_statements           View "public.pg_stat_statements"        Column        |       Type       | Modifiers  ---------------------+------------------+-----------  userid              | oid              |   dbid                | oid              |   queryid             | bigint           |   query               | text             |   calls               | bigint           |   total_time          | double precision |   min_time            | double precision |   max_time            | double precision |   mean_time ...
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Publisher Resources

ISBN: 9781788474924Supplemental Content