1 files changed, 23 insertions, 0 deletions
diff --git a/db/post_migrate/20180704145007_update_project_indexes.rb b/db/post_migrate/20180704145007_update_project_indexes.rb
new file mode 100644
index 00000000000..193563b36db
--- /dev/null
+++ b/db/post_migrate/20180704145007_update_project_indexes.rb
@@ -0,0 +1,23 @@
+# See http://doc.gitlab.com/ce/development/migration_style_guide.html
+# for more information on how to write migrations for GitLab.
+
+class UpdateProjectIndexes < ActiveRecord::Migration
+  include Gitlab::Database::MigrationHelpers
+
+  DOWNTIME = false
+  NEW_INDEX_NAME = 'idx_project_repository_check_partial'
+
+  disable_ddl_transaction!
+
+  def up
+    add_concurrent_index(:projects,
+      [:repository_storage, :created_at],
+      name: NEW_INDEX_NAME,
+      where: 'last_repository_check_at IS NULL'
+    )
+  end
+
+  def down
+    remove_concurrent_index_by_name(:projects, NEW_INDEX_NAME)
+  end
+end