diff options
author | Starfall <us@starfall.systems> | 2021-05-11 11:19:04 -0500 |
---|---|---|
committer | Starfall <us@starfall.systems> | 2021-05-11 11:19:04 -0500 |
commit | d56731a0b9d73c48bbfbced8732e25587ba892a4 (patch) | |
tree | d3830ce2e0292ce07336496e40882c222f455a33 /db/migrate/20210505174616_update_follow_recommendations_to_version_2.rb | |
parent | 459a36ab7303db4ee59945b4b2121b25cc86eb38 (diff) | |
parent | ffc3f8eebe134ca9b18af73aa29eaa1627082e40 (diff) |
Merge branch 'glitch'
Diffstat (limited to 'db/migrate/20210505174616_update_follow_recommendations_to_version_2.rb')
-rw-r--r-- | db/migrate/20210505174616_update_follow_recommendations_to_version_2.rb | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/db/migrate/20210505174616_update_follow_recommendations_to_version_2.rb b/db/migrate/20210505174616_update_follow_recommendations_to_version_2.rb new file mode 100644 index 000000000..56c0b4cb0 --- /dev/null +++ b/db/migrate/20210505174616_update_follow_recommendations_to_version_2.rb @@ -0,0 +1,18 @@ +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 |