Fix ambiguous query error on milestone_id

app/models/concerns/milestoneable.rb

@@ -15,7 +15,7 @@ module Milestoneable
     validate :milestone_is_valid
 
     scope :of_milestones, ->(ids) { where(milestone_id: ids) }
-    scope :any_milestone, -> { where('milestone_id IS NOT NULL') }
+    scope :any_milestone, -> { where.not(milestone_id: nil) }
     scope :with_milestone, ->(title) { left_joins_milestones.where(milestones: { title: title }) }
     scope :without_particular_milestone, ->(title) { left_outer_joins(:milestone).where("milestones.title != ? OR milestone_id IS NULL", title) }
     scope :any_release, -> { joins_milestone_releases }

changelogs/unreleased/fix-ambiguous-query-error.yml

+---
+title: Fix ambiguous query error when filtering for Any milestone in Value Stream
+  Analytics
+merge_request: 37451
+author:
+type: fixed

spec/models/concerns/milestoneable_spec.rb

@@ -103,7 +103,7 @@ RSpec.describe Milestoneable do
   end
 
   describe 'release scopes' do
-    let_it_be(:project) { create(:project) }
+    let_it_be(:project) { create(:project, :repository) }
 
     let_it_be(:release_1) { create(:release, tag: 'v1.0', project: project) }
     let_it_be(:release_2) { create(:release, tag: 'v2.0', project: project) }
@@ -126,6 +126,22 @@ RSpec.describe Milestoneable do
 
     let_it_be(:items) { Issue.all }
 
+    describe '#any_milestone' do
+      context 'when milestone filter is present and related closing issues are joined' do
+        let_it_be(:merge_request_1) { create(:merge_request, source_project: project, source_branch: 'feature-1') }
+        let_it_be(:merge_request_2) { create(:merge_request, source_project: project, source_branch: 'feature-2') }
+
+        let_it_be(:mrc_issue_1) { create(:merge_requests_closing_issues, issue: issue_1, merge_request: merge_request_1) }
+        let_it_be(:mrc_issue_2) { create(:merge_requests_closing_issues, issue: issue_2, merge_request: merge_request_2) }
+
+        it 'returns merge request closing issues of any milestone' do
+          relation = items.joins(merge_requests_closing_issues: :issue).any_milestone
+
+          expect(relation).to contain_exactly(issue_1, issue_2)
+        end
+      end
+    end
+
     describe '#without_release' do
       it 'returns the issues not tied to any milestone and the ones tied to milestone with no release' do
         expect(items.without_release).to contain_exactly(issue_5, issue_6)