1 files changed, 17 insertions, 0 deletions
diff --git a/db/post_migrate/20210616145254_add_partial_index_for_ci_builds_token.rb b/db/post_migrate/20210616145254_add_partial_index_for_ci_builds_token.rb
new file mode 100644
index 00000000000..6e169a6f0e1
--- /dev/null
+++ b/db/post_migrate/20210616145254_add_partial_index_for_ci_builds_token.rb
@@ -0,0 +1,17 @@
+# frozen_string_literal: true
+
+class AddPartialIndexForCiBuildsToken < ActiveRecord::Migration[6.1]
+  include Gitlab::Database::MigrationHelpers
+
+  disable_ddl_transaction!
+
+  NAME = 'index_ci_builds_on_token_partial'
+
+  def up
+    add_concurrent_index :ci_builds, :token, unique: true, where: 'token IS NOT NULL', name: NAME
+  end
+
+  def down
+    remove_concurrent_index_by_name :ci_builds, NAME
+  end
+end