diff options
Diffstat (limited to 'db')
| -rw-r--r-- | db/migrate/20161031181638_add_unique_index_to_subscriptions.rb | 18 | ||||
| -rw-r--r-- | db/schema.rb | 2 |
2 files changed, 19 insertions, 1 deletions
diff --git a/db/migrate/20161031181638_add_unique_index_to_subscriptions.rb b/db/migrate/20161031181638_add_unique_index_to_subscriptions.rb new file mode 100644 index 00000000000..4b1b29e1265 --- /dev/null +++ b/db/migrate/20161031181638_add_unique_index_to_subscriptions.rb @@ -0,0 +1,18 @@ +class AddUniqueIndexToSubscriptions < ActiveRecord::Migration + include Gitlab::Database::MigrationHelpers + + DOWNTIME = true + DOWNTIME_REASON = 'This migration requires downtime because it changes a column to not accept null values.' + + disable_ddl_transaction! + + def up + add_concurrent_index :subscriptions, [:subscribable_id, :subscribable_type, :user_id, :project_id], { unique: true, name: 'index_subscriptions_on_subscribable_and_user_id_and_project_id' } + remove_index :subscriptions, name: 'subscriptions_user_id_and_ref_fields' if index_name_exists?(:subscriptions, 'subscriptions_user_id_and_ref_fields', false) + end + + def down + add_concurrent_index :subscriptions, [:subscribable_id, :subscribable_type, :user_id], { unique: true, name: 'subscriptions_user_id_and_ref_fields' } + remove_index :subscriptions, name: 'index_subscriptions_on_subscribable_and_user_id_and_project_id' if index_name_exists?(:subscriptions, 'index_subscriptions_on_subscribable_and_user_id_and_project_id', false) + end +end diff --git a/db/schema.rb b/db/schema.rb index fcdb5ab7dde..e3a4cf9b96d 100644 --- a/db/schema.rb +++ b/db/schema.rb @@ -1055,7 +1055,7 @@ ActiveRecord::Schema.define(version: 20161109150329) do t.integer "project_id" end - add_index "subscriptions", ["subscribable_id", "subscribable_type", "user_id"], name: "subscriptions_user_id_and_ref_fields", unique: true, using: :btree + add_index "subscriptions", ["subscribable_id", "subscribable_type", "user_id", "project_id"], name: "index_subscriptions_on_subscribable_and_user_id_and_project_id", unique: true, using: :btree create_table "taggings", force: :cascade do |t| t.integer "tag_id" |