Add latest changes from gitlab-org/gitlab@master

1 files changed, 22 insertions, 0 deletions

diff --git a/db/migrate/20190905022045_add_issues_prometheus_alert_event_join_table.rb b/db/migrate/20190905022045_add_issues_prometheus_alert_event_join_table.rb
new file mode 100644
index 00000000000..861b97f0a09
--- /dev/null
+++ b/db/migrate/20190905022045_add_issues_prometheus_alert_event_join_table.rb
@@ -0,0 +1,22 @@
+# frozen_string_literal: true
+
+class AddIssuesPrometheusAlertEventJoinTable < ActiveRecord::Migration[5.2]
+  include Gitlab::Database::MigrationHelpers
+
+  DOWNTIME = false
+
+  def change
+    create_table :issues_prometheus_alert_events, id: false do |t|
+      t.references :issue, null: false,
+        index: false, # Uses the index below
+        foreign_key: { on_delete: :cascade }
+      t.references :prometheus_alert_event, null: false,
+        index: { name: 'issue_id_issues_prometheus_alert_events_index' },
+        foreign_key: { on_delete: :cascade }
+
+      t.timestamps_with_timezone
+      t.index [:issue_id, :prometheus_alert_event_id],
+        unique: true, name: 'issue_id_prometheus_alert_event_id_index'
+    end
+  end
+end