1 files changed, 31 insertions, 0 deletions
diff --git a/db/migrate/20201201161655_add_primary_key_to_elastic_search_indexed_projects.rb b/db/migrate/20201201161655_add_primary_key_to_elastic_search_indexed_projects.rb
new file mode 100644
index 00000000000..cf7221693f9
--- /dev/null
+++ b/db/migrate/20201201161655_add_primary_key_to_elastic_search_indexed_projects.rb
@@ -0,0 +1,31 @@
+# frozen_string_literal: true
+
+class AddPrimaryKeyToElasticSearchIndexedProjects < ActiveRecord::Migration[6.0]
+  DOWNTIME = false
+
+  UNIQUE_INDEX_NAME = 'index_elasticsearch_indexed_projects_on_project_id'
+  PRIMARY_KEY_NAME = 'elasticsearch_indexed_projects_pkey'
+
+  def up
+    execute(<<~SQL)
+      DELETE FROM elasticsearch_indexed_projects
+      WHERE project_id IS NULL
+    SQL
+
+    execute(<<~SQL)
+      ALTER TABLE elasticsearch_indexed_projects
+      ALTER COLUMN project_id SET NOT NULL,
+      ADD CONSTRAINT #{PRIMARY_KEY_NAME} PRIMARY KEY USING INDEX #{UNIQUE_INDEX_NAME}
+    SQL
+  end
+
+  def down
+    add_index :elasticsearch_indexed_projects, :project_id, unique: true, name: UNIQUE_INDEX_NAME # rubocop:disable Migration/AddIndex
+
+    execute(<<~SQL)
+      ALTER TABLE elasticsearch_indexed_projects
+      DROP CONSTRAINT #{PRIMARY_KEY_NAME},
+      ALTER COLUMN project_id DROP NOT NULL
+    SQL
+  end
+end