Add index for ci_runners if they are sharedadd-index-on-ci-builds

1 files changed, 17 insertions, 0 deletions

diff --git a/db/migrate/20170121130655_add_index_to_ci_runners_for_is_shared.rb b/db/migrate/20170121130655_add_index_to_ci_runners_for_is_shared.rb
new file mode 100644
index 00000000000..620befcf4d7
--- /dev/null
+++ b/db/migrate/20170121130655_add_index_to_ci_runners_for_is_shared.rb
@@ -0,0 +1,17 @@
+class AddIndexToCiRunnersForIsShared < ActiveRecord::Migration
+  include Gitlab::Database::MigrationHelpers
+
+  DOWNTIME = false
+
+  disable_ddl_transaction!
+
+  def up
+    add_concurrent_index :ci_runners, :is_shared
+  end
+
+  def down
+    if index_exists?(:ci_runners, :is_shared)
+      remove_index :ci_runners, :is_shared
+    end
+  end
+end