change column indexed for burndown chart

Author: ulferts

modules/backlogs/db/migrate/20260427125502_modify_burndown_index.rb

@@ -0,0 +1,27 @@
+# frozen_string_literal: true
+
+class ModifyBurndownIndex < ActiveRecord::Migration[8.1]
+  INDEX_NAME = "work_package_journal_on_burndown_attributes"
+
+  def up
+    remove_and_add_burndown_index :sprint_id
+  end
+
+  def down
+    remove_and_add_burndown_index :version_id
+  end
+
+  private
+
+  def remove_and_add_burndown_index(column)
+    remove_index :work_package_journals,
+                 name: INDEX_NAME
+
+    add_index :work_package_journals,
+              [column,
+               :status_id,
+               :project_id,
+               :type_id],
+              name: INDEX_NAME
+  end
+end