Add back database changes for Ci::Build

db/migrate/20180119160751_optimize_ci_job_artifacts.rb

+# See http://doc.gitlab.com/ce/development/migration_style_guide.html
+# for more information on how to write migrations for GitLab.
+
+class OptimizeCiJobArtifacts < ActiveRecord::Migration
+  include Gitlab::Database::MigrationHelpers
+
+  # Set this constant to true if this migration requires downtime.
+  DOWNTIME = false
+
+  disable_ddl_transaction!
+
+  def up
+    # job_id is just here to be a covering index for index only scans
+    # since we'll almost always be joining against ci_builds on job_id
+    add_concurrent_index(:ci_job_artifacts, [:expire_at, :job_id])
+    add_concurrent_index(:ci_builds, [:artifacts_expire_at], where: "artifacts_file <> ''")
+  end
+
+  def down
+    remove_concurrent_index(:ci_job_artifacts, [:expire_at, :job_id])
+    remove_concurrent_index(:ci_builds, [:artifacts_expire_at], where: "artifacts_file <> ''")
+  end
+end

db/schema.rb

@@ -293,6 +293,7 @@ ActiveRecord::Schema.define(version: 20180208183958) do
     t.integer "failure_reason"
   end
 
+  add_index "ci_builds", ["artifacts_expire_at"], name: "index_ci_builds_on_artifacts_expire_at", where: "(artifacts_file <> ''::text)", using: :btree
   add_index "ci_builds", ["auto_canceled_by_id"], name: "index_ci_builds_on_auto_canceled_by_id", using: :btree
   add_index "ci_builds", ["commit_id", "stage_idx", "created_at"], name: "index_ci_builds_on_commit_id_and_stage_idx_and_created_at", using: :btree
   add_index "ci_builds", ["commit_id", "status", "type"], name: "index_ci_builds_on_commit_id_and_status_and_type", using: :btree
@@ -333,6 +334,7 @@ ActiveRecord::Schema.define(version: 20180208183958) do
     t.string "file"
   end
 
+  add_index "ci_job_artifacts", ["expire_at", "job_id"], name: "index_ci_job_artifacts_on_expire_at_and_job_id", using: :btree
   add_index "ci_job_artifacts", ["job_id", "file_type"], name: "index_ci_job_artifacts_on_job_id_and_file_type", unique: true, using: :btree
   add_index "ci_job_artifacts", ["project_id"], name: "index_ci_job_artifacts_on_project_id", using: :btree
 

spec/factories/ci/builds.rb

@@ -180,8 +180,8 @@ FactoryBot.define do
 
     trait :artifacts do
       after(:create) do |build|
-        create(:ci_job_artifact, :archive, job: build)
-        create(:ci_job_artifact, :metadata, job: build)
+        create(:ci_job_artifact, :archive, job: build, expire_at: build.artifacts_expire_at)
+        create(:ci_job_artifact, :metadata, job: build, expire_at: build.artifacts_expire_at)
         build.reload
       end
     end