CreateQuery t (children 4)
 Identifier t
 Columns definition (children 1)
  ExpressionList (children 2)
   ColumnDeclaration n (children 1)
    DataType int
   ColumnDeclaration __unused_group_by_column (children 1)
    DataType int
 Storage definition (children 2)
  Function MergeTree
  Identifier n
 SelectWithUnionQuery (children 1)
  ExpressionList (children 1)
   SelectQuery (children 2)
    ExpressionList (children 2)
     Identifier number
     Identifier number
    TablesInSelectQuery (children 1)
     TablesInSelectQueryElement (children 1)
      TableExpression (children 1)
       Function numbers (children 1)
        ExpressionList (children 1)
         Literal UInt64_10
