CreateQuery t_tuple_null (children 3)
 Identifier t_tuple_null
 Columns definition (children 1)
  ExpressionList (children 1)
   ColumnDeclaration t (children 1)
    DataType Tuple (children 1)
     ExpressionList (children 1)
      NameTypePair null (children 1)
       DataType UInt32
 Storage definition (children 2)
  Function MergeTree
  Function tuple (children 1)
   ExpressionList
