CreateQuery smta (children 3)
 Identifier smta
 Columns definition (children 1)
  ExpressionList (children 3)
   ColumnDeclaration k (children 1)
    DataType Int64
   ColumnDeclaration a (children 1)
    DataType AggregateFunction (children 1)
     ExpressionList (children 2)
      Identifier max
      DataType Int64
   ColumnDeclaration city (children 1)
    DataType SimpleAggregateFunction (children 1)
     ExpressionList (children 2)
      Identifier max
      DataType LowCardinality (children 1)
       ExpressionList (children 1)
        DataType String
 Storage definition (children 2)
  Function SummingMergeTree
  Identifier k
