Add latest changes from gitlab-org/gitlab@14-2-stable-eev14.2.0-rc42

1 files changed, 26 insertions, 0 deletions

diff --git a/db/migrate/20210719145532_add_foreign_keys_view.rb b/db/migrate/20210719145532_add_foreign_keys_view.rb
new file mode 100644
index 00000000000..2d31371e782
--- /dev/null
+++ b/db/migrate/20210719145532_add_foreign_keys_view.rb
@@ -0,0 +1,26 @@
+# frozen_string_literal: true
+
+class AddForeignKeysView < ActiveRecord::Migration[6.1]
+  def up
+    execute(<<~SQL)
+      CREATE OR REPLACE VIEW postgres_foreign_keys AS
+      SELECT
+          pg_constraint.oid AS oid,
+          pg_constraint.conname AS name,
+          constrained_namespace.nspname::text || '.'::text || constrained_table.relname::text AS constrained_table_identifier,
+          referenced_namespace.nspname::text || '.'::text || referenced_table.relname::text AS referenced_table_identifier
+      FROM pg_constraint
+               INNER JOIN pg_class constrained_table ON constrained_table.oid = pg_constraint.conrelid
+               INNER JOIN pg_class referenced_table ON referenced_table.oid = pg_constraint.confrelid
+               INNER JOIN pg_namespace constrained_namespace ON constrained_table.relnamespace = constrained_namespace.oid
+               INNER JOIN pg_namespace referenced_namespace ON referenced_table.relnamespace = referenced_namespace.oid
+      WHERE contype = 'f';
+    SQL
+  end
+
+  def down
+    execute(<<~SQL)
+      DROP VIEW IF EXISTS postgres_foreign_keys
+    SQL
+  end
+end