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FEATURE: improve stats provided by rake db:stats

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New stats include index size and sort by index + table size

Eg:

```
table_name                  | row_estimate | table_size | index_size | total_size
--------------------------------------------------------------------------
topic_views                 | 18260776     | 796 MB     | 2015 MB    | 2811 MB
post_timings                | 15813837     | 668 MB     | 1153 MB    | 1821 MB
posts                       | 386890       | 1532 MB    | 215 MB     | 1747 MB
post_search_data            | 317575       | 580 MB     | 162 MB     | 742 MB
incoming_emails             | 34412        | 734 MB     | 7160 kB    | 741 MB
incoming_links              | 5169302      | 306 MB     | 377 MB     | 683 MB
email_logs                  | 5            | 32 kB      | 418 MB     | 418 MB
topic_users                 | 2410166      | 217 MB     | 155 MB     | 372 MB
user_actions                | 1361253      | 101 MB     | 266 MB     | 366 MB
...

```
This commit is contained in:
Sam Saffron 2019-08-02 17:25:30 +10:00
parent e2df331fdb
commit 4c6a0313f2
1 changed files with 4 additions and 2 deletions
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6
lib/tasks/db.rake
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@ -119,10 +119,12 @@ task 'db:stats' => 'environment' do
from pg_class from pg_class
where oid = ('public.' || table_name)::regclass where oid = ('public.' || table_name)::regclass
) AS row_estimate, ) AS row_estimate,
pg_size_pretty(pg_relation_size(quote_ident(table_name))) size pg_size_pretty(pg_table_size(quote_ident(table_name))) table_size,
pg_size_pretty(pg_indexes_size(quote_ident(table_name))) index_size,
pg_size_pretty(pg_total_relation_size(quote_ident(table_name))) total_size
from information_schema.tables from information_schema.tables
where table_schema = 'public' where table_schema = 'public'
order by pg_relation_size(quote_ident(table_name)) DESC order by pg_total_relation_size(quote_ident(table_name)) DESC
SQL SQL
puts puts