Inverse pipeline for its build associations

app/models/ci/pipeline.rb

@@ -57,12 +57,12 @@ module Ci
     # the merge request's latest commit.
     has_many :merge_requests_as_head_pipeline, foreign_key: "head_pipeline_id", class_name: 'MergeRequest'
 
-    has_many :pending_builds, -> { pending }, foreign_key: :commit_id, class_name: 'Ci::Build'
+    has_many :pending_builds, -> { pending }, foreign_key: :commit_id, class_name: 'Ci::Build', inverse_of: :pipeline
     has_many :failed_builds, -> { latest.failed }, foreign_key: :commit_id, class_name: 'Ci::Build', inverse_of: :pipeline
-    has_many :retryable_builds, -> { latest.failed_or_canceled.includes(:project) }, foreign_key: :commit_id, class_name: 'Ci::Build'
+    has_many :retryable_builds, -> { latest.failed_or_canceled.includes(:project) }, foreign_key: :commit_id, class_name: 'Ci::Build', inverse_of: :pipeline
     has_many :cancelable_statuses, -> { cancelable }, foreign_key: :commit_id, class_name: 'CommitStatus'
-    has_many :manual_actions, -> { latest.manual_actions.includes(:project) }, foreign_key: :commit_id, class_name: 'Ci::Build'
-    has_many :scheduled_actions, -> { latest.scheduled_actions.includes(:project) }, foreign_key: :commit_id, class_name: 'Ci::Build'
+    has_many :manual_actions, -> { latest.manual_actions.includes(:project) }, foreign_key: :commit_id, class_name: 'Ci::Build', inverse_of: :pipeline
+    has_many :scheduled_actions, -> { latest.scheduled_actions.includes(:project) }, foreign_key: :commit_id, class_name: 'Ci::Build', inverse_of: :pipeline
 
     has_many :auto_canceled_pipelines, class_name: 'Ci::Pipeline', foreign_key: 'auto_canceled_by_id'
     has_many :auto_canceled_jobs, class_name: 'CommitStatus', foreign_key: 'auto_canceled_by_id'

changelogs/unreleased/id-inverse-pipeline-build.yml

+---
+title: Inverse pipeline for its build associations
+merge_request: 37478
+author:
+type: performance