def _execute_sql(sql, is_batch, args)
    result = []
    if sql
      #puts "RhomDbAdapter: Executing query - #{sql}; #{args}"
      begin
        result = @database.execute( sql, is_batch, args )
        #puts "result : #{result}"
      rescue Exception => e
        puts "exception when running query: #{e}"
        puts "query: #{sql}"
        raise
      end
    end
    result
  end
def _execute_sql(sql, is_batch, args)
    result = []
    if sql
      #puts "RhomDbAdapter: Executing query - #{sql}; #{args}"
      begin
        result = @database.execute( sql, is_batch, args )
        #puts "result : #{result}"
      rescue Exception => e
        puts "exception when running query: #{e}"
        puts "query: #{sql}"
        raise
      end
    end
    result
  end
----------------------------------------
internal API