1 files changed, 18 insertions, 0 deletions
diff --git a/db/migrate/20180924201039_add_partial_index_to_scheduled_at.rb b/db/migrate/20180924201039_add_partial_index_to_scheduled_at.rb
new file mode 100644
index 00000000000..81bf0d94e11
--- /dev/null
+++ b/db/migrate/20180924201039_add_partial_index_to_scheduled_at.rb
@@ -0,0 +1,18 @@
+# frozen_string_literal: true
+
+class AddPartialIndexToScheduledAt < ActiveRecord::Migration
+  include Gitlab::Database::MigrationHelpers
+
+  DOWNTIME = false
+  INDEX_NAME = 'partial_index_ci_builds_on_scheduled_at_with_scheduled_jobs'.freeze
+
+  disable_ddl_transaction!
+
+  def up
+    add_concurrent_index(:ci_builds, :scheduled_at, where: "scheduled_at IS NOT NULL AND type = 'Ci::Build' AND status = 'scheduled'", name: INDEX_NAME)
+  end
+
+  def down
+    remove_concurrent_index_by_name(:ci_builds, INDEX_NAME)
+  end
+end