gearheads
/
mastodon
Archived
2
0
Fork 0
This repository has been archived on 2024-06-09. You can view files and clone it, but cannot push or open issues/pull-requests.
mastodon/db/migrate/20210505174616_update_follo...

19 lines
628 B
Ruby

class UpdateFollowRecommendationsToVersion2 < ActiveRecord::Migration[6.1]
# We're switching from a normal to a materialized view so we need
# custom `up` and `down` paths.
def up
drop_view :follow_recommendations
create_view :follow_recommendations, version: 2, materialized: { no_data: true }
# To be able to refresh the view concurrently,
# at least one unique index is required
safety_assured { add_index :follow_recommendations, :account_id, unique: true }
end
def down
drop_view :follow_recommendations, materialized: true
create_view :follow_recommendations, version: 1
end
end