CreateQuery test (children 3)
 Identifier test
 Columns definition (children 2)
  ExpressionList (children 2)
   ColumnDeclaration id (children 1)
    DataType UInt64
   ColumnDeclaration name (children 1)
    DataType String
  ExpressionList (children 1)
   Projection (children 1)
    ProjectionSelectQuery (children 2)
     ExpressionList (children 1)
      Function sum (children 1)
       ExpressionList (children 1)
        Identifier id
     ExpressionList (children 2)
      Identifier id
      Identifier name
 Storage definition (children 3)
  Function MergeTree (children 1)
   ExpressionList
  Identifier id
  Set
