1 files changed, 25 insertions, 0 deletions
diff --git a/db/post_migrate/20190611161642_add_index_to_events_and_audit_events_created_at_author_id.rb b/db/post_migrate/20190611161642_add_index_to_events_and_audit_events_created_at_author_id.rb
new file mode 100644
index 00000000000..342e83d6322
--- /dev/null
+++ b/db/post_migrate/20190611161642_add_index_to_events_and_audit_events_created_at_author_id.rb
@@ -0,0 +1,25 @@
+# frozen_string_literal: true
+
+# See http://doc.gitlab.com/ce/development/migration_style_guide.html
+# for more information on how to write migrations for GitLab.
+
+class AddIndexToEventsAndAuditEventsCreatedAtAuthorId < ActiveRecord::Migration[5.1]
+  include Gitlab::Database::MigrationHelpers
+
+  DOWNTIME = false
+  INDEX_NAME = 'analytics_index_%s_on_created_at_and_author_id'.freeze
+  EVENTS_INDEX_NAME = (INDEX_NAME % 'events').freeze
+  AUDIT_EVENTS_INDEX_NAME = (INDEX_NAME % 'audit_events').freeze
+
+  disable_ddl_transaction!
+
+  def up
+    add_concurrent_index :events, [:created_at, :author_id], name: EVENTS_INDEX_NAME
+    add_concurrent_index :audit_events, [:created_at, :author_id], name: AUDIT_EVENTS_INDEX_NAME
+  end
+
+  def down
+    remove_concurrent_index_by_name :events, EVENTS_INDEX_NAME
+    remove_concurrent_index_by_name :audit_events, AUDIT_EVENTS_INDEX_NAME
+  end
+end