Add indices for auto_canceled_by_id for PostgreSQL

1 files changed, 21 insertions, 0 deletions

diff --git a/db/migrate/20170502135553_create_index_ci_pipelines_auto_canceled_by_id.rb b/db/migrate/20170502135553_create_index_ci_pipelines_auto_canceled_by_id.rb
new file mode 100644
index 00000000000..b64d7e0e3f6
--- /dev/null
+++ b/db/migrate/20170502135553_create_index_ci_pipelines_auto_canceled_by_id.rb
@@ -0,0 +1,21 @@
+class CreateIndexCiPipelinesAutoCanceledById < ActiveRecord::Migration
+  include Gitlab::Database::MigrationHelpers
+
+  DOWNTIME = false
+
+  disable_ddl_transaction!
+
+  def up
+    # MySQL would already have the index
+    unless index_exists?(:ci_pipelines, :auto_canceled_by_id)
+      add_concurrent_index(:ci_pipelines, :auto_canceled_by_id)
+    end
+  end
+
+  def down
+    # We cannot remove index for MySQL because it's needed for foreign key
+    if Gitlab::Database.postgresql?
+      remove_concurrent_index(:ci_pipelines, :auto_canceled_by_id)
+    end
+  end
+end