CreateQuery data (children 3)
 Identifier data
 Columns definition (children 1)
  ExpressionList (children 3)
   ColumnDeclaration key (children 1)
    DataType Int
   ColumnDeclaration val1 (children 1)
    DataType SimpleAggregateFunction (children 1)
     ExpressionList (children 2)
      Identifier max
      DataType Nullable (children 1)
       ExpressionList (children 1)
        DataType Int
   ColumnDeclaration val2 (children 1)
    DataType SimpleAggregateFunction (children 1)
     ExpressionList (children 2)
      Identifier min
      DataType Int
 Storage definition (children 2)
  Function AggregatingMergeTree (children 1)
   ExpressionList
  Identifier key
