kotovalexarian-likes-gitlab
/
gitlab-org--gitlab-foss
1
0
Fork 0
Code Releases Activity
gitlab-org--gitlab-foss/db/migrate/20170130204620_add_index_to...

17 lines
351 B
Ruby
Raw Normal View History

Add project ID index to `project_authorizations` table to optimize queries As described in #27443, the `project_authorizations` table is often used to retrieve all team members of this project. This can lead to a number of slow queries impacting load times. This MR adds an index for just `project_id`. Closes #27443
2017-01-30 20:50:47 +00:00
class AddIndexToProjectAuthorizations < ActiveRecord::Migration
include Gitlab::Database::MigrationHelpers
DOWNTIME = false
disable_ddl_transaction!
def up
add_concurrent_index(:project_authorizations, :project_id)
end
Fix for postgresql
2017-03-14 06:36:33 +00:00
def down
Drop the index only for postgresql, because mysql cannot simply drop the index without dropping the corresponding foreign key, and we certainly don't want to drop the foreign key here.
2017-03-14 12:03:22 +00:00
remove_index(:project_authorizations, :project_id) if
Gitlab::Database.postgresql?
Fix for postgresql
2017-03-14 06:36:33 +00:00
end
Add project ID index to `project_authorizations` table to optimize queries As described in #27443, the `project_authorizations` table is often used to retrieve all team members of this project. This can lead to a number of slow queries impacting load times. This MR adds an index for just `project_id`. Closes #27443
2017-01-30 20:50:47 +00:00
end