exec_delete

# File activerecord/lib/active_record/connection_adapters/postgresql/database_statements.rb, line 158
        def exec_delete(sql, name = 'SQL', binds = [])
          log(sql, name, binds) do
            result = without_prepared_statement?(binds) ? exec_no_cache(sql, binds) :
                                                          exec_cache(sql, binds)
            affected = result.cmd_tuples
            result.clear
            affected
          end
        end