docs: public void switchOptimalSuiteForAvgPushdown () {
          m_displayColumns = m_avgPushdownDisplayColumns;
          m_aggResultColumns = m_avgPushdownAggResultColumns;
          m_groupByColumns = m_avgPushdownGroupByColumns;
          m_distinctGroupByColumns = m_avgPushdownDistinctGroupByColumns;
          m_orderColumns = m_avgPushdownOrderColumns;
          m_projectSchema = m_avgPushdownProjectSchema;
          m_distinctProjectSchema = m_avgPushdownFinalProjectSchema;
          m_hasComplexAgg = true;
          m_having = m_avgPushdownHaving;
      }