temp: count fk diff

Author: BuonOmo

lib/active_record/connection_adapters/cockroachdb/referential_integrity.rb

@@ -35,6 +35,7 @@ def check_all_foreign_keys_valid!
 
         def disable_referential_integrity
           foreign_keys = all_foreign_keys
+          dropped_fks = foreign_keys.size
 
           statements = foreign_keys.map do |foreign_key|
             # We do not use the `#remove_foreign_key` method here because it
@@ -77,6 +78,8 @@ def disable_referential_integrity
               schema_creation.accept(at)
             end
             execute_batch(statements.compact, "Disable referential integrity -> add foreign keys")
+            new_fks = statements.compact.size
+            STDOUT.puts "FK DIFF: #{new_fks - dropped_fks}"
           ensure
             ActiveRecord::Base.table_name_prefix = old_prefix
             ActiveRecord::Base.table_name_suffix = old_suffix