Commit graph

7 commits

Author SHA1 Message Date
Nikolay Samokhvalov
5487280c8c Links: switch from GitHub to GitLab Postgres mirror repo
GitLab.com also has an up-to-date Postgres mirror.
2019-08-13 06:03:53 +00:00
Marcel Amirault
25aa4e0322 Remove extra whitespaces in docs
Removes all the extra whitespaces at end of lines,
inside tags, and removes extra newlines
2019-07-09 03:28:41 +00:00
Lucas Charles
d3ff1e07e2 Add section to dev docs on accessing chatops
closes 62127
2019-06-07 01:00:36 +00:00
Toon Claes
be47267331 Add activerecord-explain-analyze gem
This gem allows you to get the `EXPLAIN ANALYZE` query plan, directly
from the Rails console.

The gem is installed with `require: false`, but if it was loaded on
launch, this would be it's memory load:

```
TOP: 145.3086 MiB
  rails/all: 22.4844 MiB
  ...
  activerecord-explain-analyze: 2.9648 MiB
    active_record/connection_adapters/postgresql_adapter: 2.9648 MiB
      pg: 2.9648 MiB
        pg_ext: 2.9648 MiB
  ...
```
2019-06-03 20:53:53 +02:00
Toon Claes
8615250930 Add some more database docs
Add a few useful links for those who want to learn more about
databases and database performance.
2019-06-03 15:59:58 +02:00
Evan Read
d98560c1f5 Make unordered lists conform to styleguide
- Also makes other minor Markdown fixes that were near the main fixes.
2019-01-08 12:21:09 +10:00
Yorick Peterse
3d46f3155a
Add documentation about reading query plans
This adds a database guide on how to read the output of "EXPLAIN" and
"EXPLAIN ANALYZE", and how to use this output to understand a query's
performance and optimise it.
2018-08-17 15:22:42 +02:00