docs: protected StmtTableScan addTableToStmtCache(Table table, String tableAlias) {
          // Create an index into the query Catalog cache
          StmtTableScan tableScan = m_tableAliasMap.get(tableAlias);
          if (tableScan == null) {
              tableScan = new StmtTargetTableScan(table, tableAlias, m_stmtId);
              m_tableAliasMap.put(tableAlias, tableScan);
          }
          return tableScan;
      }